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1/13 july 2001 n high speed : f max = 80mhz (typ.) at v cc =6v n low power dissipation: i cc =4 m a(max.) at t a =25 c n high noise immunity: v nih =v nil =28%v cc (min.) n symmetrical output impedance: |i oh |=i ol =6ma (min)for qa' toqh' |i oh |=i ol = 4ma (min) for qa to qh n balanced propagation delays: t plh @ t phl n wide operating voltage range: v cc (opr) = 2v to 6v n pin and function compatible with 74 series 299 description the m74hc299 is an high speed cmos 8 bit pipo shift register (3-state) fabricated with silicon gate c 2 mos technology. this device has four modes (hold, shift left, shift right and load data). each mode is chosen by two function select inputs (s0, s1). when one or both enable inputs, (g1, g2) are high, the eight input/output terminals are in the high impedance state; however sequential operation or clearing of the register is not affected. clear function on the m74hc299 is asynchronous to clock. all inputs are equipped with protection circuits against static discharge and transient excess voltage. m74hc299 8 bit pipo shift register with asynchronous clear pin connection and iec logic symbols order codes package tube t & r dip m74hc299b1r sop m74hc299m1r m74hc299rm13tr tssop M74HC299TTR tssop dip sop
m74hc299 2/13 iinput and output equivalent circuit pin description truth table * when one or both output controls are high, the eight input/output terminals are in the high impedance state: however sequential operation or clearing of the register is not affected. z : high impedance qn0 : the level of an before the indicated steady state input conditions were established. qnn : the level of qn before the most recent active transition indicated by or a, h : the level of the steady state inputs a, h, respectively. x : don't care pin no symbol name and function 1, 19 s0, s1 mode select inputs 2, 3 g1, g2 3-state output enable inputs (active low) 7, 13, 6, 14, 5, 15, 4, 16 a/qa to h/qh parallel data inputs or 3-state parallel outputs (bus driver) 8, 17 qa' to qh' serial outputs (standard output) 9 clear asynchronous master reset input (active low) 11 sr serial data shift right input 12 clock clock input (low to high, edge-triggered) 18 sl serial data shift left input 10 gnd ground (0v) 20 v cc positive supply voltage mode inputs inputs/outputs outputs clear function selected output control clock serial a/qa h/qh qa' qh' s1 s0 g1* g2* sl sr zlhhxxxxxzzll clear l l x l l x x x llll l x l l l x x x llll hold h l l l l x x x qa0 qh0 qa0 qh0 shift right h l h l l x h h qgn h qgn h l h l l x l l qgn l qgn shift left h h l l l h x qbn h qbn h h h l l l l x qbn l qbn l loadhhhxx xxahah
m74hc299 3/13 logic diagram
m74hc299 4/13 timing chart absolute maximum ratings absolute maximum ratings are those values beyond which damage to the device may occur. functional operation under these conditions is not t implied (*) 500mw at 65 c; derate to 300mw by 10mw/ c from 65 cto85 c symbol parameter value unit v cc supply voltage -0.5 to +7 v v i dc input voltage -0.5 to v cc + 0.5 v v o dc output voltage -0.5 to v cc + 0.5 v i ik dc input diode current 20 ma i ok dc output diode current 20 ma i o dc output source sink current per output pin (qa-qh) 35 ma i o dc output source sink current per output pin (qa'-qh') 235 ma i cc or i gnd dc v cc or ground current 70 ma p d power dissipation 500(*) mw t stg storage temperature -65 to +150 c t l lead temperature (10 sec) 300 c
m74hc299 5/13 recommended operating conditions dc specifications symbol parameter value unit v cc supply voltage 2to6 v v i input voltage 0 to v cc v v o output voltage 0 to v cc v t op operating temperature -55 to 125 c t r ,t f input rise and fall time v cc = 2.0v 0 to 1000 ns v cc = 4.5v 0 to 500 ns v cc = 6.0v 0 to 400 ns symbol parameter test condition value unit v cc (v) t a =25 c -40 to 85 c -55 to 125 c min. typ. max. min. max. min. max. v ih high level input voltage 2.0 1.5 1.5 1.5 v 4.5 3.15 3.15 3.15 6.0 4.2 4.2 4.2 v il low level input voltage 2.0 0.5 0.5 0.5 v 4.5 1.35 1.35 1.35 6.0 1.8 1.8 1.8 v oh high level output voltage 2.0 i o =-20 m a 1.9 2.0 1.9 1.9 v 4.5 i o =-20 m a 4.4 4.5 4.4 4.4 6.0 i o =-20 m a 5.9 6.0 5.9 5.9 qa to qh 4.5 i o =-6.0 ma 4.18 4.31 4.13 4.10 6.0 i o =-7.8 ma 5.68 5.8 5.63 5.60 qa' to qh' 4.5 i o =-4.0 ma 4.18 4.31 4.13 4.10 6.0 i o =-5.2 ma 5.68 5.8 5.63 5.60 v ol low level output voltage 2.0 i o =20 m a 0.0 0.1 0.1 0.1 v 4.5 i o =20 m a 0.0 0.1 0.1 0.1 6.0 i o =20 m a 0.0 0.1 0.1 0.1 qa to qh 4.5 i o =6.0 ma 0.17 0.26 0.33 0.40 6.0 i o =7.8 ma 0.18 0.26 0.33 0.40 qa' to qh' 4.5 i o =4.0 ma 0.17 0.26 0.33 0.40 6.0 i o =5.2 ma 0.18 0.26 0.33 0.40 i i input leakage current 6.0 v i =v cc or gnd 0.1 1 1 m a i oz high impedance output leakage current 6.0 v i =v ih or v il v o =v cc or gnd 0.5 5 10 m a i cc quiescent supply current 6.0 v i =v cc or gnd 44080 m a
m74hc299 6/13 ac electrical characteristics (c l = 50 pf, input t r =t f = 6ns) symbol parameter test condition value unit v cc (v) t a =25 c -40 to 85 c -55 to 125 c min. typ. max. min. max. min. max. t tlh t thl output transition time (qa, qh) 2.0 50 25 60 75 90 ns 4.5 7121518 6.0 6101315 t tlh t thl output transition time (qa', qh') 2.0 50 30 75 95 110 ns 4.5 8151922 6.0 7131619 t plh t phl propagation delay time (clock - qa', qh') 2.0 50 85 170 215 255 ns 4.5 23 34 43 51 6.0 18 29 37 43 t phl propagation delay time (clear - qa', qh') 2.0 50 85 175 220 265 ns 4.5 24 35 44 53 6.0 18 30 37 45 t plh t phl propagation delay time (clock - qa, qh) 2.0 50 80 160 200 240 ns 4.5 21 32 40 48 6.0 17 27 34 41 2.0 150 100 200 250 300 ns 4.5 26 40 50 60 6.0 21 34 43 51 t pzl t pzh high impedance output enable time 2.0 50 r l =1k w 60 130 165 195 ns 4.5 17 26 33 39 6.0 13 22 28 33 2.0 150 r l =1k w 78 170 15 255 ns 4.5 23 34 43 51 6.0 17 29 37 43 t plz t phz high impedance output disable time 2.0 50 r l =1k w 54 150 190 225 ns 4.5 19 30 38 45 6.0 16 26 32 38 f max maximum clock frequency 2.0 50 6 12 4.8 4 mhz 4.5 30 58 24 20 6.0 35 80 28 24 t w(l) t w(h) minimum pulse width (clock) 2.0 50 75 95 110 ns 4.5 15 19 22 6.0 13 16 19 t w(l) minimum pulse width (clear) 2.0 50 75 95 110 ns 4.5 15 19 22 6.0 13 16 19 t s minimum set-up time (s0, s1) (sl, sr, a, h) 2.0 50 100 125 150 ns 4.5 20 25 30 6.0 17 21 26 t h minimum hold time (s0, s1) (sl, sr, a, h) 2.0 50 000 ns 4.5 0 0 0 6.0 0 0 0 t rem minimum removal time (clear) 2.0 50 50 65 75 ns 4.5 10 13 15 6.0 9 11 13
m74hc299 7/13 capacitive characteristics 1) c pd is defined as the value of the ic's internal equivalent capacitance which is calculated from the operating current consumption without load. (refer to test circuit). average operating current can be obtained by the following equation. i cc(opr) =c pd xv cc xf in +i cc test circuit c l = 50pf/150pf or equivalent (includes jig and probe capacitance) r 1 =1k w or equivalent r t =z out of pulse generator (typically 50 w ) symbol parameter test condition value unit v cc (v) t a =25 c -40 to 85 c -55 to 125 c min. typ. max. min. max. min. max. c in input capacitance 5.0 5101010pf c pd power dissipation capacitance (note 1) 5.0 170 pf test switch t plh ,t phl open t pzl ,t plz v cc t pzh ,t phz gnd
m74hc299 8/13 waveform 1: propagation delay times, minimum pulse width (f=1mhz; 50% duty cycle) waveform 2 : setup and hold times (f=1mhz; 50% duty cycle)
m74hc299 9/13 waveform 3 :propagation delay and removal time, minimum pulse width (f=1mhz; 50% duty cycle) waveform 4: output enable and disable times (f=1mhz; 50% duty cycle)
m74hc299 10/13 dim. mm. inch min. typ max. min. typ. max. a1 0.254 0.010 b 1.39 1.65 0.055 0.065 b 0.45 0.018 b1 0.25 0.010 d 25.4 1.000 e 8.5 0.335 e 2.54 0.100 e3 22.86 0.900 f 7.1 0.280 i 3.93 0.155 l 3.3 0.130 z 1.34 0.053 plastic dip-20 (0.25) mechanical data p001j
m74hc299 11/13 dim. mm. inch min. typ max. min. typ. max. a 2.65 0.104 a1 0.1 0.2 0.004 0.008 a2 2.45 0.096 b 0.35 0.49 0.014 0.019 b1 0.23 0.32 0.009 0.012 c 0.5 0.020 c1 45 (typ.) d 12.60 13.00 0.496 0.512 e 10.00 10.65 0.393 0.419 e 1.27 0.050 e3 11.43 0.450 f 7.40 7.60 0.291 0.300 l 0.50 1.27 0.020 0.050 m 0.75 0.029 s8 (max.) so-20 mechanical data po13l
m74hc299 12/13 dim. mm. inch min. typ max. min. typ. max. a 1.2 0.047 a1 0.05 0.15 0.002 0.004 0.006 a2 0.8 1 1.05 0.031 0.039 0.041 b 0.19 0.30 0.007 0.012 c 0.09 0.20 0.004 0.0089 d 6.4 6.5 6.6 0.252 0.256 0.260 e 6.2 6.4 6.6 0.244 0.252 0.260 e1 4.3 4.4 4.48 0.169 0.173 0.176 e 0.65 bsc 0.0256 bsc k0 8 0 8 l 0.45 0.60 0.75 0.018 0.024 0.030 tssop20 mechanical data c e b a2 a e1 d 1 pin 1 identification a1 l k e 0087225c
m74hc299 information furnished is believed to be accurate and reliable. however, stmicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringe ment of patents or other righ ts of third parties which may result from its use. no license is granted by implication or otherwise under any patent or patent rights of stmicroelectronics. specifications mentioned in this pub lication are subject to change without notice. thi s pub lication supersedes and replaces all information previously supplied. stmicroelectronics prod ucts are not authori zed for use as critical components in life suppo rt devices or systems without express written approval of stmicroelectronics. ? the st logo is a registered trademark of stmicroelectronics ? 2001 stmicroelectronics - printed in italy - all rights reserved stmicroelectronics group of companies australia - brazil - china - finland - france - germany - hong kong - india - italy - japan - malaysia - malta - morocco singapore - spain - sweden - swit zerland - united kingdom ? http://w ww.st.com 13/13

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