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1. general description 74ahc1g79 and 74ahct1g79 are high-speed si-gate cmos devices. they provide a single positive-edge triggered d-type ?ip-?op. information on the data input is transferred to the q output on the low-to-high transition of the clock pulse. the d input must be stable one set-up time prior to the low-to-high clock transition for predictable operation. the ahc device has cmos input switching levels and supply voltage range 2 v to 5.5 v. the ahct device has ttl input switching levels and supply voltage range 4.5 v to 5.5 v. 2. features n symmetrical output impedance n high noise immunity n low power dissipation n balanced propagation delays n sot353-1 and sot753 package options n esd protection: u hbm jesd22-a114e: exceeds 2000 v u mm jesd22-a115-a: exceeds 200 v u cdm jesd22-c101c: exceeds 1000 v n speci?ed from - 40 c to +125 c 3. ordering information 74ahc1g79; 74ahct1g79 single d-type ?ip-?op; positive-edge trigger rev. 05 2 july 2007 product data sheet table 1. ordering information type number package temperature range name description version 74ahc1g79gw - 40 c to +125 c tssop5 plastic thin shrink small outline package; 5 leads; body width 1.25 mm sot353-1 74ahct1g79gw 74ahc1g79gv - 40 c to +125 c sc-74a plastic surface-mounted package; 5 leads sot753 74AHCT1G79GV
74ahc_ahct1g79_5 ? nxp b.v. 2007. all rights reserved. product data sheet rev. 05 2 july 2007 2 of 12 nxp semiconductors 74ahc1g79; 74ahct1g79 single d-type ?ip-?op; positive-edge trigger 4. marking 5. functional diagram table 2. marking codes type number marking 74ahc1g79gw ap 74ahc1g79gv a79 74ahct1g79gw cp 74AHCT1G79GV c79 fig 1. logic symbol fig 2. iec logic symbol mna440 2 1 cp d4 q mna441 2 d cp 14 fig 3. logic diagram mna442 cp d c c c c c c c c c tg tg tg tg q c
74ahc_ahct1g79_5 ? nxp b.v. 2007. all rights reserved. product data sheet rev. 05 2 july 2007 3 of 12 nxp semiconductors 74ahc1g79; 74ahct1g79 single d-type ?ip-?op; positive-edge trigger 6. pinning information 6.1 pinning 6.2 pin description 7. functional description [1] h = high voltage level; l = low voltage level; - = low-to-high cp transition; x = dont care; q + 1 = state after the next low-to-high cp transition. fig 4. pin con?guration 74ahc1g79 74ahct1g79 dv cc cp gnd q 001aaf091 1 2 3 5 4 table 3. pin description symbol pin description d 1 data input cp 2 clock pulse input gnd 3 ground (0 v) q 4 data output v cc 5 supply voltage table 4. function table [1] inputs output cp d q+1 - ll - hh lxq
74ahc_ahct1g79_5 ? nxp b.v. 2007. all rights reserved. product data sheet rev. 05 2 july 2007 4 of 12 nxp semiconductors 74ahc1g79; 74ahct1g79 single d-type ?ip-?op; positive-edge trigger 8. limiting values [1] the input and output voltage ratings may be exceeded if the input and output current ratings are observed. [2] for both tssop5 and sc-74a packages: above 87.5 c the value of p tot derates linearly with 4.0 mw/k. 9. recommended operating conditions 10. static characteristics table 5. 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 - 20 - ma i ok output clamping current v o < - 0.5 v or v o >v cc + 0.5 v [1] - 20 ma i o output current - 0.5 v < v o 74ahc_ahct1g79_5 ? nxp b.v. 2007. all rights reserved. product data sheet rev. 05 2 july 2007 5 of 12 nxp semiconductors 74ahc1g79; 74ahct1g79 single d-type ?ip-?op; positive-edge trigger v oh high-level output voltage v i = v ih or v il i o = - 50 m a; v cc = 2.0 v 1.9 2.0 - 1.9 - 1.9 - v i o = - 50 m a; v cc = 3.0 v 2.9 3.0 - 2.9 - 2.9 - v i o = - 50 m 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 m a; v cc = 2.0 v - 0 0.1 - 0.1 - 0.1 v i o = 50 m a; v cc = 3.0 v - 0 0.1 - 0.1 - 0.1 v i o = 50 m 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 = 5.5 v or gnd; v cc = 0 v to 5.5 v - - 0.1 - 1.0 - 2.0 m a i cc supply current v i =v cc or gnd; i o = 0 a; v cc = 5.5 v - - 1.0 - 10 - 40 m a c i input capacitance - 1.5 10 - 10 - 10 pf for type 74ahct1g79 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 m 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 m 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 v i = 5.5 v or gnd; v cc = 0 v to 5.5 v - - 0.1 - 1.0 - 2.0 m a i cc supply current v i =v cc or gnd; i o = 0 a; v cc = 5.5 v - - 1.0 - 10 - 40 m a d i cc additional supply current per input pin; v i = 3.4 v; other inputs at v cc or gnd; i o = 0 a; v cc = 5.5 v - - 1.35 - 1.5 - 1.5 ma c i input capacitance - 1.5 10 - 10 - 10 pf table 7. 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_ahct1g79_5 ? nxp b.v. 2007. all rights reserved. product data sheet rev. 05 2 july 2007 6 of 12 nxp semiconductors 74ahc1g79; 74ahct1g79 single d-type ?ip-?op; positive-edge trigger 11. dynamic characteristics [1] t pd is the same as t plh and t phl . [2] typical values are measured at v cc = 3.3 v. [3] typical values are measured at v cc = 5.0 v. [4] c pd is used to determine the dynamic power dissipation p d ( m 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 volts. table 8. dynamic characteristics gnd = 0 v; t r = t f = 3.0 ns. for test circuit see figure 6 . for waveforms see figure 5 . symbol parameter conditions 25 c - 40 c to +85 c - 40 c to +125 c unit min typ max min max min max for type 74ahc1g79 t pd propagation delay cp to q [1] v cc = 3.0 v to 3.6 v [2] c l = 15 pf - 4.9 8.4 1.0 9.8 1.0 11.5 ns c l = 50 pf - 6.9 12.0 1.0 14.0 1.0 15.5 ns v cc = 4.5 v to 5.5 v [3] c l = 15 pf - 3.5 5.6 1.0 7.0 1.0 8.0 ns c l = 50 pf - 5.1 8.0 1.0 10.0 1.0 11.0 ns t su set-up time d to cp 3.0 1.0 - 3.0 - 4.0 - ns t h hold time d to cp +2.0 - 1.0 - 2.0 - 3.0 - ns t w pulse width clock high or low 3.0 - - 3.0 - 4.0 - ns f max maximum frequency 90 - - 90 - 70 - mhz c pd power dissipation capacitance per buffer; c l =50pf;f=1 mhz; v i = gnd to v cc [4] -15- - - - - pf for type 74ahct1g79 t pd propagation delay cp to q [1] v cc = 4.5 v to 5.5 v [3] c l = 15 pf - 3.5 5.0 1.0 6.0 1.0 8.0 ns c l = 50 pf - 5.0 8.0 1.0 10.0 1.0 11.0 ns t su set-up time d to cp 3.0 1.0 - 3.0 - 4.0 - ns t h hold time d to cp +2.0 - 1.0 - 2.0 - 3.0 - ns t w pulse width clock high or low 3.0 - - 3.0 - 4.0 - ns f max maximum frequency 90 - - 90 - 70 - mhz c pd power dissipation capacitance per buffer; c l =50pf;f=1 mhz; v i = gnd to v cc [4] -16- - - - - pf
74ahc_ahct1g79_5 ? nxp b.v. 2007. all rights reserved. product data sheet rev. 05 2 july 2007 7 of 12 nxp semiconductors 74ahc1g79; 74ahct1g79 single d-type ?ip-?op; positive-edge trigger 12. waveforms measurement points are given in t ab le 9 . v ol and v oh are typical output voltage levels that occur with the output. fig 5. clock (cp) to output (q) propagation delay times, clock pulse width, d to set-up times, the cp to d hold times and maximum clock pulse frequency mna647 t h t su t h t phl t w t plh t su 1/f max v m v m v m v i gnd v i gnd cp input d input v oh v ol q output table 9. measurement points type inputs output v i v m v m 74ahc1g79 gnd to v cc 0.5 v cc 0.5 v cc 74ahct1g79 gnd to 3.0 v 1.5 v 0.5 v cc test data is given in t ab le 8 . de?nitions for test circuit: c l = load capacitance including jig and probe capacitance. r t = termination resistance should be equal to output impedance z o of the pulse generator. fig 6. load circuitry for switching times mna101 v cc v i v o r t c l pulse generator dut
74ahc_ahct1g79_5 ? nxp b.v. 2007. all rights reserved. product data sheet rev. 05 2 july 2007 8 of 12 nxp semiconductors 74ahc1g79; 74ahct1g79 single d-type ?ip-?op; positive-edge trigger 13. package outline fig 7. package outline sot353-1 (tssop5) unit a 1 a max. a 2 a 3 b p l h e l p wy v ce d (1) e (1) z (1) q references outline version european projection issue date iec jedec jeita mm 0.1 0 1.0 0.8 0.30 0.15 0.25 0.08 2.25 1.85 1.35 1.15 0.65 e 1 1.3 2.25 2.0 0.60 0.15 7 0 0.1 0.1 0.3 0.425 dimensions (mm are the original dimensions) note 1. plastic or metal protrusions of 0.15 mm maximum per side are not included. 0.46 0.21 sot353-1 mo-203 sc-88a 00-09-01 03-02-19 w m b p d z e e 1 0.15 13 5 4 q a a 2 a 1 l p (a 3 ) detail x l h e e c v m a x a y 1.5 3 mm 0 scale tssop5: plastic thin shrink small outline package; 5 leads; body width 1.25 mm sot353-1 1.1
74ahc_ahct1g79_5 ? nxp b.v. 2007. all rights reserved. product data sheet rev. 05 2 july 2007 9 of 12 nxp semiconductors 74ahc1g79; 74ahct1g79 single d-type ?ip-?op; positive-edge trigger fig 8. package outline sot753 (sc-74a) references outline version european projection issue date iec jedec jeita sot753 sc-74a wb m b p d e a a 1 l p q detail x h e e v m a a b y 0 1 2 mm scale c x 13 2 4 5 plastic surface-mounted package; 5 leads sot753 unit a 1 b p cd e h e l p qy w v mm 0.100 0.013 0.40 0.25 3.1 2.7 0.26 0.10 1.7 1.3 e 0.95 3.0 2.5 0.2 0.1 0.2 dimensions (mm are the original dimensions) 0.6 0.2 0.33 0.23 a 1.1 0.9 02-04-16 06-03-16
74ahc_ahct1g79_5 ? nxp b.v. 2007. all rights reserved. product data sheet rev. 05 2 july 2007 10 of 12 nxp semiconductors 74ahc1g79; 74ahct1g79 single d-type ?ip-?op; positive-edge trigger 14. abbreviations 15. revision history table 10. abbreviations acronym description cdm charged device model 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_ahct1g79_5 20070702 product data sheet - 74ahc_ahct1g79_4 modi?cations: ? the format of this data sheet has been redesigned to comply with the new identity guidelines of nxp semiconductors. ? legal texts have been adapted to the new company name where appropriate. ? package sot353 changed to sot353-1 in section 3 and section 13 . ? figure 5 updated to include waveform de?nitions for set-up, hold, pulse width and maximum frequency. ? quick reference data and soldering sections removed. 74ahc_ahct1g79_4 20020606 product speci?cation - 74ahc_ahct1g79_3 74ahc_ahct1g79_3 20020218 product speci?cation - 74ahc_ahct1g79_2 74ahc_ahct1g79_2 20010222 product speci?cation - 74ahc_ahct1g79_1 74ahc_ahct1g79_1 19990518 product speci?cation - -
74ahc_ahct1g79_5 ? nxp b.v. 2007. all rights reserved. product data sheet rev. 05 2 july 2007 11 of 12 nxp semiconductors 74ahc1g79; 74ahct1g79 single d-type ?ip-?op; positive-edge trigger 16. legal information 16.1 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 de?nitions. [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 dev ices. the latest product status information is available on the internet at url http://www .nxp .com . 16.2 de?nitions draft the document is a draft version only. the content is still under internal review and subject to formal approval, which may result in modi?cations or additions. nxp semiconductors does not give any representations or warranties as to the accuracy or completeness of information included herein and shall have 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 via the local nxp semiconductors sales of?ce. in case of any inconsistency or con?ict with the short data sheet, the full data sheet shall prevail. 16.3 disclaimers general 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. right to make changes nxp semiconductors reserves the right to make changes to information published in this document, including without limitation speci?cations 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 nxp semiconductors products are not designed, 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 a nxp semiconductors product can reasonably be expected to result in personal injury, death or severe property or environmental damage. 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 customers own risk. applications applications that are described herein for any of these products are for illustrative purposes only. nxp semiconductors makes no representation or warranty that such applications will be suitable for the speci?ed use without further testing or modi?cation. limiting values stress above one or more limiting values (as de?ned in the absolute maximum ratings system of iec 60134) may cause permanent damage to the device. limiting values are stress ratings only and operation of the device at these or any other conditions above those given in the characteristics sections of this document is not implied. exposure to limiting values for extended periods may affect device reliability. terms and conditions of sale nxp semiconductors products are sold subject to the general terms and conditions of commercial sale, as published at http://www .nxp .com/pro? le/ter ms , including those pertaining to warranty, intellectual property rights infringement and limitation of liability, unless explicitly otherwise agreed to in writing by nxp semiconductors. in case of any inconsistency or con?ict between information in this document and such terms and conditions, the latter will prevail. no offer to sell or license nothing in this document may be interpreted or construed as an offer to sell products that is open for acceptance or the grant, conveyance or implication of any license under any copyrights, patents or other industrial or intellectual property rights. 16.4 trademarks notice: all referenced brands, product names, service names and trademarks are the property of their respective owners. 17. contact information for additional information, please visit: http://www .nxp.com for sales of?ce addresses, send an email to: salesad dresses@nxp.com document status [1] [2] product status [3] de?nition objective [short] data sheet development this document contains data from the objective speci?cation for product development. preliminary [short] data sheet quali?cation this document contains data from the preliminary speci?cation. product [short] data sheet production this document contains the product speci?cation.
nxp semiconductors 74ahc1g79; 74ahct1g79 single d-type ?ip-?op; positive-edge trigger ? nxp b.v. 2007. all rights reserved. for more information, please visit: http://www.nxp.com for sales office addresses, please send an email to: salesaddresses@nxp.com date of release: 2 july 2007 document identifier: 74ahc_ahct1g79_5 please be aware that important notices concerning this document and the product(s) described herein, have been included in section legal information. 18. contents 1 general description . . . . . . . . . . . . . . . . . . . . . . 1 2 features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 3 ordering information . . . . . . . . . . . . . . . . . . . . . 1 4 marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 5 functional diagram . . . . . . . . . . . . . . . . . . . . . . 2 6 pinning information . . . . . . . . . . . . . . . . . . . . . . 3 6.1 pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 6.2 pin description . . . . . . . . . . . . . . . . . . . . . . . . . 3 7 functional description . . . . . . . . . . . . . . . . . . . 3 8 limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 4 9 recommended operating conditions. . . . . . . . 4 10 static characteristics. . . . . . . . . . . . . . . . . . . . . 4 11 dynamic characteristics . . . . . . . . . . . . . . . . . . 6 12 waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 13 package outline . . . . . . . . . . . . . . . . . . . . . . . . . 8 14 abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . 10 15 revision history . . . . . . . . . . . . . . . . . . . . . . . . 10 16 legal information. . . . . . . . . . . . . . . . . . . . . . . 11 16.1 data sheet status . . . . . . . . . . . . . . . . . . . . . . 11 16.2 de?nitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 16.3 disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 16.4 trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 17 contact information. . . . . . . . . . . . . . . . . . . . . 11 18 contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

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