74ahct1g14 single schmitt-trigger invereter 74ahct1g14 document number: ds35183 rev. 1 - 2 1 of 8 www.diodes.com may 2011 ? diodes incorporated new product description the 74ahct1g14 is a single 1-i nput schmitt-trigger inverter gate with a standard push-pull output. the device is designed for operation with a power supply range of 4.5v to 5.5v. the gate performs the positive boolean function: ay = pin assignments sot25 / sot353 nc gnd y vcc (top view) 5 4 3 2 1 a features ? supply voltage range from 4.5v to 5.5v ? 8 ma output drive at 5.0v ? cmos low power consumption ? schmitt trigger action at all inputs make the circuit tolerant for slower input rise and fall time ? esd protection per jesd 22 o exceeds 200-v machine model (a115-a) o exceeds 2000-v human body model (a114-a) o exceeds 1000-v charged device model (c101c) ? latch-up exceeds 100ma per jesd 78, class ii ? sot25 and sot353: assembled with ?green? molding compound (no br, sb) ? lead free finish / rohs compliant (note 1) applications ? general purpose logic ? wide array of products such as o pcs, networking, notebooks, netbooks, pdas o computer peripherals, hard drives, cd/dvd rom o tv, dvd, dvr, set top box o cell phones, personal navigation / gps o mp3 players ,cameras, video recorders notes: 1. eu directive 2002/95/ec (rohs). all applicab le rohs exemptions applied. please visit our website at http://www.diodes.com /products/lead_free.html .
74ahct1g14 single schmitt-trigger invereter 74ahct1g14 document number: ds35183 rev. 1 - 2 2 of 8 www.diodes.com may 2011 ? diodes incorporated new product pin descriptions pin name pin no. description nc 1 no connection a 2 data input gnd 3 ground y 4 data output v cc 5 supply voltage logic diagram function table inputs output a y h l l h
74ahct1g14 single schmitt-trigger invereter 74ahct1g14 document number: ds35183 rev. 1 - 2 3 of 8 www.diodes.com may 2011 ? diodes incorporated new product absolute maximum ratings (note 2) symbol description rating unit esd hbm human body model esd protection 2 kv esd cdm charged device model esd protection 1 kv esd mm machine model esd protection 200 v v cc supply voltage range -0.5 to 6.5 v v i input voltage range -0.5 to 6.5 v v o voltage applied to output in high or low state -0.5 to v cc +0.5 v i ik input clamp current v i <0 -20 ma i ok output clamp current (v o < 0 or v o > v cc ) 20 ma i o continuous output current (v o = 0 to v cc ) 25 ma i cc continuous current through v cc 50 ma i gnd continuous current through gnd -50 ma t j operating junction temperature -40 to 150 c t stg storage temperature -65 to 150 c notes: 2. stresses beyond the absolute maximum may result in immediate failure or reduced reliability. these are stress valu es and device operation should be within recommend values. recommended operating conditions (note 3) symbol parameter min max unit v cc operating voltage 4.5 5.5 v v i input voltage 0 5.5 v v o output voltage 0 v cc v i oh high-level output current -8 ma i ol low-level output current 8 ma t/ v input transition rise or fall rate 20 ns/v t a operating free-air temperature -40 125 oc notes: 3. unused inputs should be held at v cc or ground.
74ahct1g14 single schmitt-trigger invereter 74ahct1g14 document number: ds35183 rev. 1 - 2 4 of 8 www.diodes.com may 2011 ? diodes incorporated new product electrical characteristics symbol parameter test conditions v cc t a =25. -40oc to 85oc -40oc to 125oc unit min typ. max min max min max v t+ positive-going input threshold voltage 4.5v 1.9 1.9 1.9 5.5v 2.1 2.1 2.1 v t- negative-going input threshold voltage 4.5v 0.5 0.5 0.5 5.5v 0.6 0.6 0.6 v t hysteresis (v t+ - v t- ) 4.5v 0.4 1.4 0.4 1.4 .35 1.4 5.5v 0.4 1.6 0.4 1.6 .35 1.5 v oh high level output voltage i oh = -50 a 4.5v 4.4 4.5 4.4 4.4 v i oh = -8ma 4.5v 3.94 3.80 3.70 v ol high-level input voltage i ol = 50 a 4.5v 0.1 0.1 0.1 v i ol = 8ma 4.5v 0.36 0.44 0.55 i i input current v i = 5.5 v or gnd 0 to 5.5v 0.1 1 2 a i cc supply current v i = 5.5v or gnd i o =0 5.5v 2 20 40 a i cc additional supply current one input at 3.4 v other inputs at v cc or gnd 5.5v 1.35 1.5 1.5 ma c i input capacitance v i = v cc or gnd 5.5v 3 10 10 10 pf ja thermal resistance junction-to- ambient sot25 (note 4) 195 o c/w sot353 (note 4) 430 o c/w jc thermal resistance junction-to- case sot25 (note 4) 58 o c/w sot353 (note 4) 155 o c/w note: 4. test conditions for sot25, and sot353: device moun ted on fr-4 substrate pc board, 2oz copper, with minimum recomme nded pad layout . switching characteristics v cc = 5v 0.5v (see figure 1) parameter from (input) to (output) 25oc -40oc to 85oc -40oc to 125oc unit min typ. max min max min max t pd a y c l =15pf 0.6 4.0 7.0 0.6 8.0 0.6 9.0 ns c l =50pf 0.6 5.4 8.0 0.6 9.0 0.6 10.0 ns
74ahct1g14 single schmitt-trigger invereter 74ahct1g14 document number: ds35183 rev. 1 - 2 5 of 8 www.diodes.com may 2011 ? diodes incorporated new product operating characteristics t a = 25 oc parameter test conditions v cc = 5v unit typ. c pd power dissipation capacitance f = 1 mhz no load 10 pf parameter measurement information v cc inputs v m c l v i t r /t f 3.3v0.3v v cc 3ns v cc /2 15pf 5v0.5v v cc 3ns v cc /2 15pf 3.3v0.3v v cc 3ns v cc /2 50pf 5v0.5v v cc 3ns v cc /2 50pf voltage waveform pulse duration voltage waveform propagation delay times inverting and non inverting outputs figure 1. load circuit and voltage waveforms notes: a. includes test lead and test apparatus capacitance. b. all pulses are supplied at pulse repetition rate 1 mhz. c. inputs are measured separatel y one transition per measurement. d. t plh and t phl are the same as t pd .
74ahct1g14 single schmitt-trigger invereter 74ahct1g14 document number: ds35183 rev. 1 - 2 6 of 8 www.diodes.com may 2011 ? diodes incorporated new product ordering information 74 ahct 1g 14 xx -7 w5 : sot25 function package 7 : tape & reel packing 14 : 1-input inverter se : sot353 logic device 74 : logic prefix ahct : 2 to family with ttl 1g : one gate 5.5v input level schmitt-trigger device package code packaging (note 5) 7? tape and reel quantity part number suffix 74ahct1g14w5-7 w5 sot25 3000/tape & reel -7 74AHCT1G14SE-7 se sot353 3000/tape & reel -7 notes: 5. pad layout as shown on di odes inc. suggested pad layout document ap 02001, which can be found on our website at http ://www.diodes.com/dat asheets/ap02001.pdf. marking information 1 2 3 5 7 4 xx y w x xx : identification code w : week : a~z : 1~26 week; x : a~z : internal code (top view) y : year 0~9 a~z : 27~52 week; z represents 52 and 53 week part number package identification code 74ahct1g14w5 sot25 zv 74AHCT1G14SE sot353 zv
74ahct1g14 single schmitt-trigger invereter 74ahct1g14 document number: ds35183 rev. 1 - 2 7 of 8 www.diodes.com may 2011 ? diodes incorporated new product package outline dimensions (all dimensions in mm) (1) package type: sot25 (2) package type: sot353 sot25 dim min max typ a 0.35 0.50 0.38 b 1.50 1.70 1.60 c 2.70 3.00 2.80 d 0.95 h 2.90 3.10 3.00 j 0.013 0.10 0.05 k 1.00 1.30 1.10 l 0.35 0.55 0.40 m 0.10 0.20 0.15 n 0.70 0.80 0.75 d 0 8 a ll dimensions in mm sot353 dim min max a 0.10 0.30 b 1.15 1.35 c 2.00 2.20 d 0.65 typ f 0.40 0.45 h 1.80 2.20 j 0 0.10 k 0.90 1.00 l 0.25 0.40 m 0.10 0.22 d 0 8 a ll dimensions in mm a m j l d b c h k n a m j l d b c h k f
74ahct1g14 single schmitt-trigger invereter 74ahct1g14 document number: ds35183 rev. 1 - 2 8 of 8 www.diodes.com may 2011 ? diodes incorporated new product important notice diodes incorporated makes no warranty of any kind, express or implied, with regards to this document, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose (and their equivalents under the laws of any jurisdiction). diodes incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or ot her changes without further notice to this document and any product described herein. diodes incorporated does not assume any liabi lity arising out of the application or use of this document or any product described herein; neither does diodes incorporated convey any license under its patent or trademark rights, nor the rights of others. any customer or user of this document or products desc ribed herein in such applications shall assume all risks of such use and will agree to hold diodes incorporated and all the companies whose products are represented on diodes incorporated website, harmless against all damages. diodes incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthoriz ed sales channel. should customers purchase or use diodes incorporated products for any unintended or unauthorized application, customers shall indemnify and hold diodes incorporated and its representatives harmless against all claims, damages, expenses, and attorney fee s arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized a pplication. products described herein may be covered by one or more united states, international or foreign patents pending. product names and markings noted herein may also be covered by one or more united states, international or foreign trademarks. life support diodes incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the chief executive officer of diodes incorporated. as used herein: a. life support devices or systems are devices or systems which: 1. are intended to implant into the body, or 2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the labeling can be reasonably expected to result in significant injury to the user. b. a critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or to affect its safety or effectiveness. customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support dev ices or systems, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any use of diodes incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related information or support that may be provided by diodes incorporated. further, customers must fully indemnify diodes incorporated and its representatives against any damages arising out of the use of diodes incorporated products in such safety-critical, life support devices or systems. copyright ? 2011, diodes incorporated www.diodes.com
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