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1. general description the 74ahc123a; 74ahct123a are high-spe ed si-gate cmos devices and are pin compatible with low power schottky ttl (lsttl ). they are specified in compliance with jedec standard no. 7a. the 74ahc123a; 74ahct123a are dual retriggerable monostable multivibrators with output pulse width control by three method s. the basic pulse time is programmed by selection of an external resistor (r ext ) and capacitor (c ext ). the external resistor and capacitor are normally connected as shown in figure 11 . once triggered, the basic output pulse width may be extended by retriggering the gated active low-going edge input (na ) or the active high-going edge input (nb). by repeating this process, the output pulse period (nq = high, nq = low) can be made as long as desired. alternatively an output delay can be terminated at any time by a low-going edge on input nr d, which also inhibits the triggering. an internal connection from nr d to the input gate makes it possible to trigger the circuit by a positive-going signal at input nr d as shown in table 3 . figure 8 and figure 9 illustrate pulse control by retriggering and early reset. the basic output pulse width is essentially determined by the value of the external timing components r ext and c ext . when c ext ? 10 nf, the typical output puls e width is defined as: t w =r ext ? c ext where t w = pulse width in ns; r ext = external resistor in k ? ; c ext = external capacitor in pf. schmitt-trigger action at all inputs makes the circuit highly tolerant to slower input rise and fall times. 2. features and benefits ? all inputs have a schmitt-trigger action ? inputs accept voltages higher than v cc ? dc triggered from active high or active low inputs ? retriggerable for very long pulses up to 100 % duty factor ? direct reset terminates output pulse ? for 74ahc123a only: operates with cmos input levels ? for 74ahct123a only: operates with ttl input levels ? esd protection: ? hbm jesd22-a114e exceeds 2000 v ? mm jesd22-a115-a exceeds 200 v ? cdm jesd22-c101c exceeds 1000 v ? multiple package options ? specified from ? 40 ? c to +85 ? c and from ? 40 ? c to +125 ? c 74ahc123a; 74ahct123a dual retriggerable monostab le multivibrator with reset rev. 3 ? 8 september 2011 product data sheet
74ahc_ahct123a all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2011. all rights reserved. product data sheet rev. 3 ? 8 september 2011 2 of 22 nxp semiconductors 74ahc123a; 74ahct123a dual retriggerable monostable multivibrator with reset 3. ordering information 4. functional diagram table 1. ordering information type number package temperature range name description version 74ahc123ad ? 40 ? c to +125 ? c so16 plastic small out line package; 16 leads; body width 3.9 mm sot109-1 74ahct123ad 74ahc123apw ? 40 ? c to +125 ? c tssop16 plastic thin shrink small outline package; 16 leads; body width 4.4 mm sot403-1 74AHCT123APW 74ahc123abq ? 40 ? c to +125 ? c dhvqfn16 plastic dual in-line compatible thermal enhanced very thin quad flat package; no leads; 16 terminals; body 2.5 ? 3.5 ? 0.85 mm sot763-1 74ahct123abq fig 1. logic symbol fig 2. iec logic symbol 001aae521 14 1 2 3 1a 1b 1rd 9 10 11 2a 2b 2rd 15 s q q t rd 13 4 1cext 1rext/cext 1q 1q 6 7 5 12 2cext 2rext/cext 2q 2q 1 2 3 13 cx & rcx r r 14 4 15 001aae522 9 10 11 5 cx & rcx 6 12 7
74ahc_ahct123a all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2011. all rights reserved. product data sheet rev. 3 ? 8 september 2011 3 of 22 nxp semiconductors 74ahc123a; 74ahct123a dual retriggerable monostable multivibrator with reset fig 3. functional diagram 1q q 2rd rd s 13 1rext/cext 15 1cext 14 1q q 4 9 aaa-000650 1rd 2a 1 1a 10 2b 2 11 3 1b t q rd s 2rext/cext 7 2cext 6 2q 5 q 2q 12 t
74ahc_ahct123a all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2011. all rights reserved. product data sheet rev. 3 ? 8 september 2011 4 of 22 nxp semiconductors 74ahc123a; 74ahct123a dual retriggerable monostable multivibrator with reset for minimum noise generation it is recommended to ground pins 6 (2cext) and 14 (1cext) externally to pin 8 (gnd). fig 4. functional diagram 001aae524 v cc nrext/cext q q cl cl r cl cl cl v cc v cc rr rd r a b
74ahc_ahct123a all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2011. all rights reserved. product data sheet rev. 3 ? 8 september 2011 5 of 22 nxp semiconductors 74ahc123a; 74ahct123a dual retriggerable monostable multivibrator with reset 5. pinning information 5.1 pinning 5.2 pin description (1) the die substrate is at tached to this pad using conductive die attach material. it can not be used as a supply pin or input. fig 5. pin configuration so16, tssop16 fig 6. pin configuration dhvqfn16 74ahc123a 74ahct123a 1a v cc 1b 1rext/cext 1rd 1cext 1q 1q 2q 2q 2cext 2rd 2rext/cext 2b gnd 2a 001aah068 1 2 3 4 5 6 7 8 10 9 12 11 14 13 16 15 001aah067 74ahc123a 74ahct123a 2rext/cext 2b 2cext 2rd 2q 2q 1q 1q 1rd 1cext 1b 1rext/cext gnd 2a 1a v cc transparent top view 7 10 6 11 5 12 4 13 3 14 2 15 8 9 1 16 terminal 1 index area gnd (1) table 2. pin description symbol pin description 1a 1 negative-edge triggered input 1 1b 2 positive-edge triggered input 1 1r d 3 direct reset low and posit ive-edge triggered input 1 1q 4 active low output 1 2q 5 active high output 2 2cext 6 external capacitor connection 2 2rext/cext 7 external resistor and capacitor connection 2 gnd 8 ground (0 v) 2a 9 negative-edge triggered input 2 2b 10 positive-edge triggered input 2 2r d 11 direct reset low and posit ive-edge triggered input 2 2q 12 active low output 2 1q 13 active high output 1 1cext 14 external capacitor connection 1 1rext/cext 15 external resistor and capacitor connection 1 v cc 16 supply voltage
74ahc_ahct123a all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2011. all rights reserved. product data sheet rev. 3 ? 8 september 2011 6 of 22 nxp semiconductors 74ahc123a; 74ahct123a dual retriggerable monostable multivibrator with reset 6. functional description [1] h = high voltage level; l = low voltage level; x = don?t care; ? = low-to-high transition; ? = high-to-low transition; = one high level output pulse; = one low level output pulse. [2] if the monostable multivibrator was triggered before this c ondition was established, the puls e will continue as programmed. 7. limiting values [1] the input and output voltage ratings may be exceeded if the input and output current ratings are observed. [2] p tot derates linearly with 8 mw/k above 70 ? c. [3] p tot derates linearly with 5.5 mw/k above 60 ? c. [4] p tot derates linearly with 4.5 mw/k above 60 ? c. table 3. function table [1] input output nr d na nb nq nq l xxl h xhxl [2] h [2] xxl l [2] h [2] hl ? h ? h ? lh table 4. limiting values in accordance with the absolute maximum rating system (iec 60134). voltages are referenced to gnd (ground = 0 v). symbol parameter conditions min max unit v cc supply voltage ? 0.5 +7.0 v v i input voltage ? 0.5 +7.0 v i ik input clamping current v i < ? 0.5 v [1] ? 20 - ma i ok output clamping current v o < ? 0.5 v or v o >v cc +0.5v [1] - ? 20 ma i o output current v o = ? 0.5 v to (v cc +0.5v) - ? 25 ma i cc supply current - 75 ma i gnd ground current ? 75 - ma t stg storage temperature ? 65 +150 ?c p tot total power dissipation t amb = ? 40 ? c to +125 ?c so16 package [2] - 500 mw tssop16 package [3] - 500 mw dhvqfn16 package [4] - 500 mw
74ahc_ahct123a all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2011. all rights reserved. product data sheet rev. 3 ? 8 september 2011 7 of 22 nxp semiconductors 74ahc123a; 74ahct123a dual retriggerable monostable multivibrator with reset 8. recommended operating conditions 9. static characteristics table 5. recommended operating conditions voltages are referenced to gnd (ground = 0 v). symbol parameter conditions 74ahc123a 74ahct123a unit min typ max min typ max v cc supply voltage 2.0 5.0 5.5 4.5 5.0 5.5 v v i input voltage 0 - 5.5 0 - 5.5 v v o output voltage 0 - v cc 0- v cc v t amb ambient temperature ? 40 +25 +125 ? 40 +25 +125 ?c ? t/ ? v input transition rise and fall rate v cc = 3.3 v ? 0.3 v - - 100 - - - ns/v v cc = 5.0 v ? 0.5 v - - 20 - - 20 ns/v table 6. static characteristics voltages are referenced to gnd (ground = 0 v). symbol parameter conditions 25 ?c ? 40 ? c to +85 ?c ? 40 ? c to +125 ?c unit min typ max min max min max 74ahc123a v ih high-level input voltage v cc = 2.0 v 1.5 - - 1.5 - 1.5 - v v cc = 3.0 v 2.1 - - 2.1 - 2.1 - v v cc = 5.5 v 3.85 - - 3.85 - 3.85 - v v il low-level input voltage v cc = 2.0 v - - 0.5 - 0.5 - 0.5 v v cc = 3.0 v - - 0.9 - 0.9 - 0.9 v v cc = 5.5 v - - 1.65 - 1.65 - 1.65 v v oh high-level output voltage v i = v ih or v il i o = ? 50 ? a; v cc = 2.0 v 1.9 2.0 - 1.9 - 1.9 - v i o = ? 50 ? a; v cc = 3.0 v 2.9 3.0 - 2.9 - 2.9 - v i o = ? 50 ? a; v cc = 4.5 v 4.4 4.5 - 4.4 - 4.4 - v i o = ? 4.0 ma; v cc = 3.0 v 2.58 - - 2.48 - 2.40 - v i o = ? 8.0 ma; v cc = 4.5 v 3.94 - - 3.8 - 3.70 - v v ol low-level output voltage v i = v ih or v il i o = 50 ? a; v cc = 2.0 v - 0 0.1 - 0.1 - 0.1 v i o = 50 ? a; v cc = 3.0 v - 0 0.1 - 0.1 - 0.1 v i o = 50 ? a; v cc = 4.5 v - 0 0.1 - 0.1 - 0.1 v i o = 4.0 ma; v cc = 3.0 v - - 0.36 - 0.44 - 0.55 v i o = 8.0 ma; v cc = 4.5 v - - 0.36 - 0.44 - 0.55 v i i input leakage current v i =5.5vorgnd; v cc = 0 v to 5.5 v nrext/cext [1] -- ? 0.25 - ? 2.5 - ? 10.0 ? a pins na , nb, nr d- - ? 0.1 - ? 1.0 - ? 2.0 ? a
74ahc_ahct123a all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2011. all rights reserved. product data sheet rev. 3 ? 8 september 2011 8 of 22 nxp semiconductors 74ahc123a; 74ahct123a dual retriggerable monostable multivibrator with reset [1] voltage on nrext/cext = 0.5 ?? v cc and pin nrext/cext in off-state during test. i cc supply current v i =v cc or gnd; i o = 0 a; v cc =5.5v --4.0 - 40 - 80 ? a active state (per circuit); v i =v cc or gnd [1] v cc = 3.0 v - 160 250 - 280 - 280 ? a v cc = 4.5 v - 380 500 - 650 - 650 ? a v cc = 5.5 v - 560 750 - 975 - 975 ? a c i input capacitance - 5.0 10 - 10 - 10 pf c o output capacitance -4.0 - - - - - pf 74ahct123a v ih high-level input voltage v cc = 4.5 v to 5.5 v 2.0 - - 2.0 - 2.0 - v v il low-level input voltage v cc = 4.5 v to 5.5 v - - 0.8 - 0.8 - 0.8 v v oh high-level output voltage v i = v ih or v il ; v cc = 4.5 v i o = ? 50 ? a 4.4 4.5 - 4.4 - 4.4 - v i o = ? 8.0 ma 3.94 - - 3.8 - 3.70 - v v ol low-level output voltage v i = v ih or v il ; v cc = 4.5 v i o = 50 ? a - 0 0.1 - 0.1 - 0.1 v i o = 8.0 ma - - 0.36 - 0.44 - 0.55 v i i input leakage current nrext/cext; v i =5.5vorgnd; v cc = 0 v to 5.5 v [1] -- ? 0.25 - ? 2.5 - ? 10.0 ? a pins na , nb, nr d; v i =v cc or gnd; v cc =5.5v -- ? 0.1 - ? 1.0 - ? 2.0 ? a i cc supply current v i =v cc or gnd; i o = 0 a; v cc =5.5v --4.0 - 40 - 80 ? a active state (per circuit); v i =v cc or gnd [1] v cc = 4.5 v - 380 500 - 650 - 650 ? a v cc = 5.5 v - 560 750 - 975 - 975 ? a c i input capacitance - 3 10 - 10 - 10 pf c o output capacitance -4.0 - - - - - pf table 6. static characteristics ?continued voltages are referenced to gnd (ground = 0 v). symbol parameter conditions 25 ?c ? 40 ? c to +85 ?c ? 40 ? c to +125 ?c unit min typ max min max min max
74ahc_ahct123a all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2011. all rights reserved. product data sheet rev. 3 ? 8 september 2011 9 of 22 nxp semiconductors 74ahc123a; 74ahct123a dual retriggerable monostable multivibrator with reset 10. dynamic characteristics table 7. dynamic characteristics gnd = 0 v; for test circuit see figure 12 . symbol parameter conditions 25 ?c ? 40 ? c to +85 ?c ? 40 ? c to +125 ?c unit min typ [1] max min max min max 74ahc123a t pd propagation delay na and nb to nq and nq ; see figure 7 [2] v cc = 3.0 v to 3.6 v c l = 15 pf - 7.4 20.6 1.0 24.0 1.0 26.0 ns c l = 50 pf - 10.5 24.1 1.0 27.5 1.0 30.0 ns v cc = 4.5 v to 5.5 v c l = 15 pf - 5.1 12.0 1.0 14.0 1.0 15.5 ns c l = 50 pf - 7.3 14.0 1.0 16.0 1.0 17.5 ns nr d to nq and nq ; see figure 7 [2] v cc = 3.0 v to 3.6 v c l = 15 pf - 8.2 22.4 1.0 26.0 1.0 28.0 ns c l = 50 pf - 11.7 25.9 1.0 29.5 1.0 32.0 ns v cc = 4.5 v to 5.5 v c l = 15 pf - 5.6 12.9 1.0 15.0 1.0 16.5 ns c l = 50 pf - 8.1 14.9 1.0 17.0 1.0 19.0 ns nr d to nq and nq (reset); see figure 7 [2] v cc = 3.0 v to 3.6 v c l = 15 pf - 6.4 15.8 1.0 18.5 1.0 20.0 ns c l = 50 pf - 9.2 19.3 1.0 22.0 1.0 24.5 ns v cc = 4.5 v to 5.5 v c l = 15 pf - 4.4 9.4 1.0 11.0 1.0 12.0 ns c l = 50 pf - 6.3 11.4 1.0 13.0 1.0 14.5 ns
74ahc_ahct123a all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2011. all rights reserved. product data sheet rev. 3 ? 8 september 2011 10 of 22 nxp semiconductors 74ahc123a; 74ahct123a dual retriggerable monostable multivibrator with reset t w pulse width inputs; na = low; see figure 7 v cc = 3.0 v to 3.6 v 5.0 - - 5.0 - 5.0 - ns v cc = 4.5 v to 5.5 v 5.0 - - 5.0 - 5.0 - ns inputs; nb = high; see figure 7 v cc = 3.0 v to 3.6 v 5.0 - - 5.0 - 5.0 - ns v cc = 4.5 v to 5.5 v 5.0 - - 5.0 - 5.0 - ns inputs; nr d = low; see figure 7 v cc = 3.0 v to 3.6 v 5.0 - - 5.0 - 5.0 - ns v cc = 4.5 v to 5.5 v 5.0 - - 5.0 - 5.0 - ns outputs; nq = low and nq = high; c l =50pf; see figure 7 , figure 8 , figure 9 and figure 10 [3] c ext = 28 pf; r ext =2k ? v cc = 3.0 v to 3.6 v - 115 240 - 300 - 300 ns v cc = 4.5 v to 5.5 v - 100 200 - 240 - 240 ns c ext = 0.01 ? f; r ext =10k ? v cc = 3.0 v to 3.6 v 90 100 110 90 110 85 115 ? s v cc = 4.5 v to 5.5 v 90 100 110 90 110 85 115 ? s c ext = 0.1 ? f; r ext =10k ? ; v cc = 3.0 v to 3.6 v 0.9 1 1.1 0.9 1.1 0.85 1.15 ms v cc = 4.5 v to 5.5 v 0.9 1 1.1 0.9 1.1 0.85 1.15 ms t rtrig retrigger time na to nb; c ext = 100 pf; r ext =1k ? ; c l =50pf; see figure 8 and figure 10 v cc = 3.0 v to 3.6 v - 60 - - - - - ns v cc = 4.5 v to 5.5 v - 39 - - - - - ns na to nb; c ext = 0.01 ? f; r ext =1k ? ; c l =50pf; see figure 8 and figure 10 v cc = 3.0 v to 3.6 v - 1.5 - - - - - ? s v cc = 4.5 v to 5.5 v - 1.2 - - - - - ? s c pd power dissipation capacitance c l =50pf; f i = 1 mhz; v i =gndtov cc [4] -57- - - - -pf table 7. dynamic characteristics ?continued gnd = 0 v; for test circuit see figure 12 . symbol parameter conditions 25 ?c ? 40 ? c to +85 ?c ? 40 ? c to +125 ?c unit min typ [1] max min max min max
74ahc_ahct123a all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2011. all rights reserved. product data sheet rev. 3 ? 8 september 2011 11 of 22 nxp semiconductors 74ahc123a; 74ahct123a dual retriggerable monostable multivibrator with reset 74ahct123a t pd propagation delay na and nb to nq and nq ; see figure 7 [2] v cc = 4.5 v to 5.5 v c l = 15 pf - 5.0 12.0 1.0 14.0 1.0 15.5 ns c l = 50 pf - 7.1 14.0 1.0 16.0 1.0 17.5 ns nr d to nq and nq ; see figure 7 [2] v cc = 4.5 v to 5.5 v c l = 15 pf - 5.2 12.9 1.0 15.0 1.0 16.5 ns c l = 50 pf - 7.5 14.9 1.0 17.0 1.0 18.5 ns nr d to nq and nq (reset); see figure 7 [2] v cc = 4.5 v to 5.5 v c l = 15 pf - 4.7 9.4 1.0 11.0 1.0 12.0 ns c l = 50 pf - 6.7 11.4 1.0 13.0 1.0 14.5 ns t w pulse width inputs; na = low; c l = 50 pf; see figure 7 v cc = 4.5 v to 5.5 v 5.0 - - 5.0 - 5.0 - ns inputs; nb = high; c l = 50 pf; see figure 7 v cc = 4.5 v to 5.5 v 5.0 - - 5.0 - 5.0 - ns inputs; nr d = low; c l = 50 pf; see figure 7 v cc = 4.5 v to 5.5 v 5.0 - - 5.0 - 5.0 - ns outputs; nq = low and nq = high; c l =50pf; c ext = 28 pf; r ext =2k ? ; see figure 7 , figure 8 , figure 9 and figure 10 [3] v cc = 4.5 v to 5.5 v - 100 200 - 240 - 240 ns c ext = 0.01 ? f; r ext =10k ? v cc = 4.5 v to 5.5 v 90 100 110 90 110 85 115 ? s c ext = 0.1 ? f; r ext =10k ? v cc = 4.5 v to 5.5 v 0.9 1 1.1 0.9 1.1 0.85 1.15 ms table 7. dynamic characteristics ?continued gnd = 0 v; for test circuit see figure 12 . symbol parameter conditions 25 ?c ? 40 ? c to +85 ?c ? 40 ? c to +125 ?c unit min typ [1] max min max min max
74ahc_ahct123a all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2011. all rights reserved. product data sheet rev. 3 ? 8 september 2011 12 of 22 nxp semiconductors 74ahc123a; 74ahct123a dual retriggerable monostable multivibrator with reset [1] typical values are measured at nominal supply voltage (v cc = 3.3 v and v cc = 5.0 v). [2] t pd is the same as t plh and t phl ; c ext = 0 pf; r ext =5 k ? . [3] for c ext ? 10 nf the typical value of the pulse width t w ( ? s) = c ext (nf) ? r ext (k ? ). [4] c pd is used to determine the dynamic power dissipation p d ( ? w). p d =c pd ? v cc 2 ? f i + ? (c l ? v cc 2 ? f o )where: f i = input frequency in mhz; f o = output frequency in mhz; c l = output load capacitance in pf; v cc = supply voltage in v. [5] c ext has no limits. t rtrig retrigger time na to nb; c ext = 100 pf; r ext =1k ? ; c l =50pf; see figure 8 and figure 10 v cc = 4.5 v to 5.5 v - 60 - - - - - ns na to nb; c ext = 0.01 ? f; r ext =1k ? ; c l =50pf; see figure 8 and figure 10 v cc = 4.5 v to 5.5 v - 1.5 - - - - - ? s c pd power dissipation capacitance c l =50pf; f i = 1 mhz; v i =gndtov cc [4] -58- - - - -pf external components r ext external resistance v cc = 2.0 v 5 - - - - - - k ? v cc > 3.0 v 1 - - - - - - k ? c ext external capacitance v cc = 2.0 v [5] ---- - - -pf v cc > 3.0 v [5] ---- - - -pf table 7. dynamic characteristics ?continued gnd = 0 v; for test circuit see figure 12 . symbol parameter conditions 25 ?c ? 40 ? c to +85 ?c ? 40 ? c to +125 ?c unit min typ [1] max min max min max
74ahc_ahct123a all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2011. all rights reserved. product data sheet rev. 3 ? 8 september 2011 13 of 22 nxp semiconductors 74ahc123a; 74ahct123a dual retriggerable monostable multivibrator with reset 11. waveforms measurement points are given in ta b l e 8 . fig 7. propagation delay input (na , nb, nr d) to output (nq, nq ) 001aae528 nb input (na low) t w t w t plh v m v m v m t w t plh t w t phl t phl v m t w t plh na input (nb high) nrd input nq output nq output v m t phl t phl t plh reset table 8. measurement points type input output v m v m 74ahc123a 0.5v cc 0.5v cc 74ahct123a 1.5 v 0.5v cc nr d = high fig 8. output pulse control using retrigger pulse 001aae526 nb input nq output na input t rtrig t w t w t w t w
74ahc_ahct123a all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2011. all rights reserved. product data sheet rev. 3 ? 8 september 2011 14 of 22 nxp semiconductors 74ahc123a; 74ahct123a dual retriggerable monostable multivibrator with reset na = low fig 9. output pulse control using reset input nr d 001aae527 nb input nq output nrd input t w t w fig 10. input and output timing t rt t w t w t w + t rt na input nb input nrd input nrext/cext nq output nq output 001aah086
74ahc_ahct123a all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2011. all rights reserved. product data sheet rev. 3 ? 8 september 2011 15 of 22 nxp semiconductors 74ahc123a; 74ahct123a dual retriggerable monostable multivibrator with reset fig 11. timing component connections v cc r ext to ncext (pin 14 or 6) to nrext/cext (pin 15 or 7) c ext mna519 test data is given in table 9 . definitions test circuit: r t = termination resistance should be equal to output impedance z o of the pulse generator c l = load capacitance including jig and probe capacitance r l = load resistor s1 = test selection switch fig 12. load circuitry for switching times v m v m t w t w 10 % 90 % 0 v v i v i negative pulse positive pulse 0 v v m v m 90 % 10 % t f t r t r t f 001aad983 dut v cc v cc v i v o r t r l s1 c l open g table 9. test data type input load s1 position v i t r , t f c l r l t phl , t plh t pzh , t phz t pzl , t plz 74ahc123a v cc 3.0 ns 15 pf, 50 pf 1 k ? open gnd v cc 74ahct123a 3.0 v 3.0 ns 15 pf, 50 pf 1 k ? open gnd v cc
74ahc_ahct123a all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2011. all rights reserved. product data sheet rev. 3 ? 8 september 2011 16 of 22 nxp semiconductors 74ahc123a; 74ahct123a dual retriggerable monostable multivibrator with reset 12. package outline fig 13. package outline sot109-1 (so16) x w m a a 1 a 2 b p d h e l p q detail x e z e c l v m a (a ) 3 a 8 9 1 16 y pin 1 index unit a max. a 1 a 2 a 3 b p cd (1) e (1) (1) eh e ll p qz ywv references outline version european projection issue date iec jedec jeita mm inches 1.75 0.25 0.10 1.45 1.25 0.25 0.49 0.36 0.25 0.19 10.0 9.8 4.0 3.8 1.27 6.2 5.8 0.7 0.6 0.7 0.3 8 0 o o 0.25 0.1 dimensions (inch dimensions are derived from the original mm dimensions) note 1. plastic or metal protrusions of 0.15 mm (0.006 inch) maximum per side are not included. 1.0 0.4 sot109-1 99-12-27 03-02-19 076e07 ms-012 0.069 0.010 0.004 0.057 0.049 0.01 0.019 0.014 0.0100 0.0075 0.39 0.38 0.16 0.15 0.05 1.05 0.041 0.244 0.228 0.028 0.020 0.028 0.012 0.01 0.25 0.01 0.004 0.039 0.016 0 2.5 5 mm scale so16: plastic small outline package; 16 leads; body width 3.9 mm sot109-1
74ahc_ahct123a all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2011. all rights reserved. product data sheet rev. 3 ? 8 september 2011 17 of 22 nxp semiconductors 74ahc123a; 74ahct123a dual retriggerable monostable multivibrator with reset fig 14. package outline sot403-1 (tssop16) unit a 1 a 2 a 3 b p cd (1) e (2) (1) eh e ll p qz ywv references outline version european projection issue date iec jedec jeita mm 0.15 0.05 0.95 0.80 0.30 0.19 0.2 0.1 5.1 4.9 4.5 4.3 0.65 6.6 6.2 0.4 0.3 0.40 0.06 8 0 o o 0.13 0.1 0.2 1 dimensions (mm are the original dimensions) notes 1. plastic or metal protrusions of 0.15 mm maximum per side are not included. 2. plastic interlead protrusions of 0.25 mm maximum per side are not included. 0.75 0.50 sot403-1 mo-153 99-12-27 03-02-18 w m b p d z e 0.25 18 16 9 a a 1 a 2 l p q detail x l (a ) 3 h e e c v m a x a y 0 2.5 5 mm scale tssop16: plastic thin shrink small outline package; 16 leads; body width 4.4 mm sot403-1 a max. 1.1 pin 1 index
74ahc_ahct123a all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2011. all rights reserved. product data sheet rev. 3 ? 8 september 2011 18 of 22 nxp semiconductors 74ahc123a; 74ahct123a dual retriggerable monostable multivibrator with reset fig 15. package outline sot763-1 (dhvqfn16) terminal 1 index area 0.5 1 a 1 e h b unit y e 0.2 c references outline version european projection issue date iec jedec jeita mm 3.6 3.4 d h 2.15 1.85 y 1 2.6 2.4 1.15 0.85 e 1 2.5 0.30 0.18 0.05 0.00 0.05 0.1 dimensions (mm are the original dimensions) sot763-1 mo-241 - - - - - - 0.5 0.3 l 0.1 v 0.05 w 0 2.5 5 mm scale sot763-1 dhvqfn16: plastic dual in-line compatible thermal enhanced very thin quad flat package; no leads; 16 terminals; body 2.5 x 3.5 x 0.85 mm a (1) max. a a 1 c detail x y y 1 c e l e h d h e e 1 b 27 15 10 9 8 1 16 x d e c b a terminal 1 index area ac c b v m w m e (1) note 1. plastic or metal protrusions of 0.075 mm maximum per side are not included. d (1) 02-10-17 03-01-27
74ahc_ahct123a all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2011. all rights reserved. product data sheet rev. 3 ? 8 september 2011 19 of 22 nxp semiconductors 74ahc123a; 74ahct123a dual retriggerable monostable multivibrator with reset 13. abbreviations 14. revision history table 10. abbreviations acronym description cdm charged-device model cmos complementary metal oxide semiconductor dut device under test esd electrostatic discharge hbm human body model mm machine model ttl transistor-transistor logic table 11. revision history document id release date data sheet status change notice supersedes 74ahc_ahct123a v.3 20110908 product data sheet - 74ahc_ahct123a v.2 modifications: ? waveform figure 7 updated (errata). 74ahc_ahct123a v.2 20080118 product data sheet - 74ahc_ahct123a v.1 74ahc_ahct123a v.1 20000315 product specification - -
74ahc_ahct123a all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2011. all rights reserved. product data sheet rev. 3 ? 8 september 2011 20 of 22 nxp semiconductors 74ahc123a; 74ahct123a dual retriggerable monostable multivibrator with reset 15. legal information 15.1 data sheet status [1] please consult the most recently issued document before initiating or completing a design. [2] the term ?short data sheet? is explained in section ?definitions?. [3] the product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple device s. the latest product status information is available on the internet at url http://www.nxp.com . 15.2 definitions draft ? the document is a draft versi on only. the content is still under internal review and subject to formal approval, which may result in modifications or additions. nxp semiconductors does not give any representations or warranties as to the accuracy or completeness of information included herein and shall hav e no liability for the consequences of use of such information. short data sheet ? a short data sheet is an extract from a full data sheet with the same product type number(s) and title. a short data sheet is intended for quick reference only and should not be relied upon to contain detailed and full information. for detailed and full information see the relevant full data sheet, which is available on request vi a the local nxp semiconductors sales office. in case of any inconsistency or conflict with the short data sheet, the full data sheet shall prevail. product specification ? the information and data provided in a product data sheet shall define the specification of the product as agreed between nxp semiconductors and its customer , unless nxp semiconductors and customer have explicitly agreed otherwis e in writing. in no event however, shall an agreement be valid in which the nxp semiconductors product is deemed to offer functions and qualities beyond those described in the product data sheet. 15.3 disclaimers limited warranty and liability ? information in this document is believed to be accurate and reliable. however, nxp semiconductors does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information. in no event shall nxp semiconductors be liable for any indirect, incidental, punitive, special or consequential damages (including - without limitation - lost profits, lost savings, business interruption, costs related to the removal or replacement of any products or rework charges) whether or not such damages are based on tort (including negligence), warranty, breach of contract or any other legal theory. notwithstanding any damages that customer might incur for any reason whatsoever, nxp semiconductors? aggregate and cumulative liability towards customer for the products described herein shall be limited in accordance with the terms and conditions of commercial sale of nxp semiconductors. right to make changes ? nxp semiconductors reserves the right to make changes to information published in this document, including without limitation specifications and product descriptions, at any time and without notice. this document supersedes and replaces all information supplied prior to the publication hereof. suitability for use in automotive applications ? this nxp semiconductors product has been qua lified for use in automotive applications. the product is not desi gned, authorized or warranted to be suitable for use in medical, military, aircraft, space or life support equipment, nor in applications where failure or malfunction of an nxp semiconductors product can reasonably be ex pected to result in personal injury, death or severe property or environmental dam age. nxp semiconductors accepts no liability for inclusion and/or use of nxp semiconductors products in such equipment or applications and therefore such inclusion and/or use is at the customer?s own risk. applications ? applications that are described herein for any of these products are for illustrative purpos es only. nxp semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification. customers are responsible for the design and operation of their applications and products using nxp semiconductors products, and nxp semiconductors accepts no liability for any assistance with applications or customer product design. it is customer?s sole responsibility to determine whether the nxp semiconductors product is suitable and fit for the customer?s applications and products planned, as well as fo r the planned application and use of customer?s third party customer(s). customers should provide appropriate design and operating safeguards to minimize the risks associated with their applications and products. nxp semiconductors does not accept any liability related to any default, damage, costs or problem which is based on any weakness or default in the customer?s applications or products, or the application or use by customer?s third party customer(s). customer is responsible for doing all necessary testing for the customer?s applic ations and products using nxp semiconductors products in order to av oid a default of the applications and the products or of the application or use by customer?s third party customer(s). nxp does not accept any liability in this respect. limiting values ? stress above one or more limiting values (as defined in the absolute maximum ratings system of iec 60134) will cause permanent damage to the device. limiting values are stress ratings only and (proper) operation of the device at these or any other conditions above those given in the recommended operating conditions section (if present) or the characteristics sections of this document is not warranted. constant or repeated exposure to limiting values will permanently and irreversibly affect the quality and reliability of the device. terms and conditions of commercial sale ? nxp semiconductors products are sold subject to the gener al terms and conditions of commercial sale, as published at http://www.nxp.com/profile/terms , unless otherwise agreed in a valid written individual agreement. in case an individual agreement is concluded only the terms and conditions of the respective agreement shall apply. nxp semiconductors hereby expressly objects to applying the customer?s general terms and conditions with regard to the purchase of nxp semiconducto rs products by customer. no offer to sell or license ? nothing in this document may be interpreted or construed as an offer to sell products t hat is open for acceptance or the grant, conveyance or implication of any lic ense under any copyrights, patents or other industrial or intellectual property rights. document status [1] [2] product status [3] definition objective [short] data sheet development this document contains data from the objecti ve specification for product development. preliminary [short] data sheet qualification this document contains data from the preliminary specification. product [short] data sheet production this document contains the product specification.
74ahc_ahct123a all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2011. all rights reserved. product data sheet rev. 3 ? 8 september 2011 21 of 22 nxp semiconductors 74ahc123a; 74ahct123a dual retriggerable monostable multivibrator with reset export control ? this document as well as the item(s) described herein may be subject to export control regu lations. export might require a prior authorization from national authorities. 15.4 trademarks notice: all referenced brands, produc t names, service names and trademarks are the property of their respective owners. 16. contact information for more information, please visit: http://www.nxp.com for sales office addresses, please send an email to: salesaddresses@nxp.com
nxp semiconductors 74ahc123a; 74ahct123a dual retriggerable monostable multivibrator with reset ? nxp b.v. 2011. all rights reserved. for more information, please visit: http://www.nxp.com for sales office addresses, please se nd an email to: salesaddresses@nxp.com date of release: 8 september 2011 document identifier: 74ahc_ahct123a please be aware that important notices concerning this document and the product(s) described herein, have been included in section ?legal information?. 17. contents 1 general description . . . . . . . . . . . . . . . . . . . . . . 1 2 features and benefits . . . . . . . . . . . . . . . . . . . . 1 3 ordering information . . . . . . . . . . . . . . . . . . . . . 2 4 functional diagram . . . . . . . . . . . . . . . . . . . . . . 2 5 pinning information . . . . . . . . . . . . . . . . . . . . . . 5 5.1 pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 5.2 pin description . . . . . . . . . . . . . . . . . . . . . . . . . 5 6 functional description . . . . . . . . . . . . . . . . . . . 6 7 limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 6 8 recommended operating conditions. . . . . . . . 7 9 static characteristics. . . . . . . . . . . . . . . . . . . . . 7 10 dynamic characteristics . . . . . . . . . . . . . . . . . . 9 11 waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 12 package outline . . . . . . . . . . . . . . . . . . . . . . . . 16 13 abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . 19 14 revision history . . . . . . . . . . . . . . . . . . . . . . . . 19 15 legal information. . . . . . . . . . . . . . . . . . . . . . . 20 15.1 data sheet status . . . . . . . . . . . . . . . . . . . . . . 20 15.2 definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 15.3 disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 15.4 trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . 21 16 contact information. . . . . . . . . . . . . . . . . . . . . 21 17 contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

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