74ahc595 document number: ds35486 rev. 3 - 2 1 of 10 www.diodes.com june 2013 ? diodes incorporated 74ahc595 8-bit shift register with 8-bit output register description the 74ahc595 is an advanced high speed cmos device. an eight bit shift register accept s data from the serial input (ds) on each positive transition of the shi ft register clock (stcp). when asserted low the reset function (mr ) sets all shift register values to zero and is independent of all clocks. data from the input serial shift regi ster is placed in the output register with a rising pulse on the storages resister clock (shcp). with the output enable (oe ; asserted low the 3-state outputs q0-q7 become active and present. all registers capture data on rising edge and change output on the falling edge. if both clocks are connected together, the input shift register is always one clock cycle ahead of the output register. features ? wide supply voltage range from 2.0 v to 5.5v ? sinks or sources 8ma at v cc = 4.5v ? cmos low power consumption ? schmitt trigger action at all inputs ? inputs accept up to 5.5v ? esd protection tested per jesd 22 ? exceeds 200-v machine model (a115-a) ? exceeds 2000-v human body model (a114-a) ? exceeds 1000-v charged device model (c101c) ? latch-up exceeds 250ma per jesd 78, class ii ? totally lead-free & fully rohs compliant (notes 1 & 2) ? halogen and antimony free. ?green? device (note 3) pin assignments applications ? general purpose logic ? serial to parallel data conversion ? capture and hold data for extended periods of time ? allow simple serial bit streams fr om a microcontroller to control as many peripheral lines as needed ? wide array of products such as: ? computer peripherals ? appliances ? industrial control notes: 1. no purposely added lead. fully eu directiv e 2002/95/ec (rohs) & 2011/6 5/eu (rohs 2) compliant. 2. see http://www.diodes.com/quality/lead_free.html for more in formation about diodes incorporated?s definitions of halogen- a nd antimony-free, "green" and lead-free. 3. halogen- and antimony-free "green? products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total br + cl) and <1000ppm antimony compounds. click here for ordering information, located at the end of datasheet
74ahc595 document number: ds35486 rev. 3 - 2 2 of 10 www.diodes.com june 2013 ? diodes incorporated 74ahc595 pin descriptions pin number pin name description 1 q1 parallel data output 1 2 q2 parallel data output 2 3 q3 parallel data output 3 4 q4 parallel data output 4 5 q5 parallel data output 5 6 q6 parallel data output 6 7 q7 parallel data output 7 8 gnd ground 9 q7s serial data output 10 mr master reset input 11 shcp shift register clock input 12 stcp storage register clock input 13 oe output enable input 14 ds serial data input 15 q0 parallel data output 0 16 vcc supply voltage functional diagram logic diagram
74ahc595 document number: ds35486 rev. 3 - 2 3 of 10 www.diodes.com june 2013 ? diodes incorporated 74ahc595 functional description and timing diagram control input output function shcp stcp oe mr ds q7s qn x x l l ? l nc low-level asserted on mr clears shift register. storage register is unchanged x ? l l ? l l empty shift register transferred to storage register x x h l ? l z shift register remains clear;: all q ouputs in z state. ? x l h ? q6s nc high is shifted into first stage of shift register contents of each register shifted to next register the content of q6s has been shifted to q7s and now appears on device pin q7s x ? l h ? nc qns contents of shift register copied to storage register. with output now in active state the storage resister contents appear on q outputs. ? ? l h ? q6s qns h=high voltage state l=low voltage state ? =low to high transition x= don?t care ? high or low (not floating) nc= no change z= high-impedance state shcp ds stcp mr oe q0 q1 q6 q7 q7s z-state z-state z-state z-state
74ahc595 document number: ds35486 rev. 3 - 2 4 of 10 www.diodes.com june 2013 ? diodes incorporated 74ahc595 absolute maximum ratings (note 4) (@t a = +25c, unless othe rwise specified.) symbol parameter 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 7.0 v v i input voltage range -0.5 to 7.0 v v o voltage applied to output in high or low state -0.3 to v cc +0.5 v i ik input clamp current v i < -0.5v -20 ma i ok output clamp current v o <-0.5v -20 ma i ok output clamp current v o > v cc + 0.5v 25 ma i o continuous output current +/- 25 ma i cc continuous current through vcc or gnd 75 ma i gnd continuous current through vcc or gnd -75 ma t j operating junction temperature -40 to 150 c t stg storage temperature -65 to 150 c p tot total power dissipation 500 mw note: 4. stresses beyond the absolute maximum may result in immediate failure or reduced re liability. these are stress valu es and device operation should be within recommend values. recommended operating conditions (note 5) (@t a = +25c, unless otherwise specified.) symbol parameter conditions min max unit v cc supply voltage ? 2.0 5.5 v v i input voltage ? 0 5.5 v v o output voltage active mode 0 v cc v t/ v input transition rise or fall rate v cc = 3.0v to 3.6v ? 100 ns/v v cc = 4.5v to 5.5v ? 20 t a operating free-air temperature ? -40 +125 c note: 5. unused inputs should be held at v cc or ground. electrical characteristics (@t a = +25c, unless otherwise specified.) symbol parameter test conditions v cc t a = +25c t a = -40c to +85c t a = -40c to +125c unit min typ max min max min max v ih high-level input voltage ? 2.0v 1.5 ? ? 1.5 ? 1.5 ? v ? 3.0v 2.1 ? ? 2.1 ? 2.1 ? ? 5.5v 3.85 ? ? 3.85 ? 3.85 ? v il low-level input voltage ? 2.0v ? ? 0.5 ? 0.5 ? 0.5 v ? 3.0v ? ? 0.9 ? 0.9 ? 0.9 ? 5.5v ? ? 1.65 ? 1.65 ? 1.65 v oh high level output voltage i oh = -50 a 2.0v 1.9 2.0 ? 1.9 ? 1.9 ? v i oh = -50 a 3.0v 2.9 3.0 ? 2.9 ? 2.9 ? i oh = -50 a 4.5v 4.4 4.5 ? 4.4 ? 4.4 ? i oh = -4ma 3.0v 2.58 ? ? 2.48 ? 2.40 ? i oh = -8ma 4.5v 3.94 ? ? 3.80 ? 3.70 ? v ol low-level output voltage i ol = 50 a 2.0v ? 0 0.1 ? 0.1 ? 0.1 v i ol = 50 a 3.0v ? 0 0.1 ? 0.1 ? 0.1 i ol = 50 a 4.5v ? 0 0.1 ? 0.1 ? 0.1 i ol = 4ma 3.0v ? ? 0.36 ? 0.44 ? 0.55 i ol = 8ma 4.5v ? ? 0.36 ? 0.44 ? 0.55 i i input current v i = gnd to 5.5v 5.5v ? 0.1 0.1 ? 1 ? 2 a i oz off-state output current v i = v ih or v il ; v o = v cc or gnd 5.5v ? ? 0.25 ? 2.5 ? 10 a i cc supply current v i = gnd or v cc i o = 0 5.5v ? ? 4.0 ? 40 ? 80 a c i input capacitance v i = v cc or gnd 5.5v ? 4 10 ? 10 ? 10 pf
74ahc595 document number: ds35486 rev. 3 - 2 5 of 10 www.diodes.com june 2013 ? diodes incorporated 74ahc595 switching characteristics symbol / parameter pins test conditions v cc t a = +25c -40c to +85c -40c to +125c unit min typ max min max min max f max maximum frequency shcp or stcp figure 2 3.0v to 3.6v 80 125 ? 60 ? 40 ? mhz 4.5v to 5.5v 130 70 ? 110 ? 90 ? t w pulse width shcp high or low figure 2 3.0v to 3.6v 5.0 ? ? 5.0 ? 5.0 ? ns 4.5v to 5.5v 5.0 ? ? 5.0 ? 5.0 ? stcp high or low figure 2 3.0v to 3.6v 5.0 ? ? 5.0 ? 5.0 ? 4.5v to 5.5v 5.0 ? ? 5.0 ? 5.0 ? mr low figure 2 3.0v to 3.6v 5.0 ? ? 5.0 ? 5.0 ? 4.5v to 5.5v 5.0 ? ? 5.0 ? 5.0 ? t su set-up time ds to shcp figure 2 3.0v to 3.6v 3.5 ? ? 3.5 ? 3.5 ? ns 4.5v to 5.5v 3.0 ? ? 3.0 ? 3.0 ? shcp to stcp figure 2 3.0v to 3.6v 8.5 ? ? 8.5 ? 8.5 ? ns 4.5v to 5.5v 5.0 ? ? 5.0 ? 5.0 ? t h hold time ds to shcp figure 2 3.0v to 3.6v 1.5 ? ? 1.5 ? 1.5 ? ns 4.5v to 5.5v 2.0 ? ? 2.0 ? 2.0 ? t rec recovery time mr to shcp figure 2 3.0v to 3.6v 3.0 ? ? 3.0 ? 3.0 ? ns 4.5v to 5.5v 2.5 ? ? 2.5 ? 2.5 ? t pd propagation delay shcp to q7s figure 2 c l = 15pf 3.0v to 3.6v ? 5.7 13.0 1.0 15.0 1.0 16.5 ns 4.5v to 5.5v ? 4.0 8.2 1.0 9.4 1.0 10.5 figure 2 c l = 50pf 3.0v to 3.6v ? 7.7 16.5 1.0 18.5 1.0 20.1 4.5v to 5.5v ? 5.4 10.0 1.0 11.4 1.0 12.5 stcp to qn figure 2 c l = 15pf 3.0v to 3.6v ? 5.9 11.9 1.0 13.5 1.0 15.0 ns 4.5v to 5.5v ? 4.2 7.4 1.0 8.5 1.0 10.5 figure 2 c l = 50pf 3.0v to 3.6v ? 7.7 15.4 1.0 17.0 1.0 18.5 4.5v to 5.5v ? 5.5 9.0 1.0 10.5 1.0 11.5 mr to q7s figure 2 c l = 15pf 3.0v to 3.6v ? 5.9 12.8 1.0 13.7 1.0 15.0 ns 4.5 v to 5.5v ? 4.4 8.0 1.0 9.1 1.0 10.5 figure 2 c l = 50pf 3.0v to 3.6v ? 7.4 16.3 1.0 17.2 1.0 18.7 4.5v to 5.5v ? 5.6 10.0 1.0 11.1 1.0 12.0 t en enable time oe to qn figure 2 c l = 15pf 3.0v to 3.6v ? 5.6 11.5 1.0 13.5 1.0 15.0 ns 4.5v to 5.5v ? 4.0 8.6 1.0 10.0 1.0 10.5 figure 2 c l = 50pf 3.0v to 3.6v ? 7.4 15.0 1.0 17.0 1.0 18.5 4.5v to 5.5v ? 5.3 10.6 1.0 12.0 1.0 13.0 t dis disable time oe to qn figure 2 c l = 15pf 3.0v to 3.6v ? 5.4 11.0 1.0 13.0 1.0 14.5 ns 4.5v to 5.5v ? 3.8 8.0 1.0 9.5 1.0 10.5 figure 2 c l = 50pf 3.0v to 3.6v ? 8.7 15.7 1.0 16.2 1.0 17.5 4.5v to 5.5v ? 5.8 10.3 1.0 11.0 1.0 12.0 operating characteristics (@t a = +25c, unless otherwise specified.) parameter test conditions v cc = 5v unit typ c pd power dissipation capacitance f = 1 mhz all outputs switching-no load 42 pf
74ahc595 document number: ds35486 rev. 3 - 2 6 of 10 www.diodes.com june 2013 ? diodes incorporated 74ahc595 parameter measurement information r l c l (see note a) from output under test v load test vload t plh /t phl open t plz /t pzl v cc t phz /t pzh gnd vcc inputs v m c l v i t r /t f 3.3v -3.6v v cc 3ns v cc /2 15pf, 50pf 4.5v to 5.5v v cc 3ns v cc /2 15pf, 50pf voltage waveform pulse duration and recovery time voltage waveform set-up and hold times voltage waveform propagation delay times inverting and non inverting outputs voltage waveform enable and disable times notes: a .includes test lead and test apparatus capacitance. b. output waveform 1 depends on the internal q n node being low and behaves in this manner based on oe pin. output waveform 2 depends on the internal q n node being high and behaves in this manner based on oe pin. c. all pulses are supplied at pulse repetition rate 10 mhz d. inputs are measured separately one transition per measurement e. t plh and t phl are the same as t pd. figure 2. load circuit and voltage waveforms
74ahc595 document number: ds35486 rev. 3 - 2 7 of 10 www.diodes.com june 2013 ? diodes incorporated 74ahc595 ordering information part number package code packaging 7? tape and reel (note 6) quantity part number suffix 74ahc595s16-13 s16 so-16 2500/tape & reel -13 74AHC595T16-13 t16 tssop-16 2500/tape & reel -13 note: 6. the taping orientation is loca ted on our website at http:// www.diodes.com/d atasheets/ap02007.pdf marking information (1) so-16, tssop16 part number package 74ahc595s16 so-16 74AHC595T16 tssop-16
74ahc595 document number: ds35486 rev. 3 - 2 8 of 10 www.diodes.com june 2013 ? diodes incorporated 74ahc595 package outline dimensions (all dimensions in mm.) please see ap02002 at http://www.diodes.com/ datasheets/ap02002.pdf for latest version. package type: so-16 package type: tssop-16 so-16 dim min max a 1.40 1.75 a1 0.10 0.25 a2 1.30 1.50 b 0.33 0.51 c 0.19 0.25 d 9.80 10.00 e 3.80 4.00 e 1.27 typ h 5.80 6.20 l 0.38 1.27 ? 0 ? 8 ? ? all dimensions in mm tssop-16 dim min max typ a - 1.08 - a1 0.05 0.15 - a2 0.80 0.93 - b 0.19 0.30 - c 0.09 0.20 - d 4.90 5.10 - e 6.40 bsc e1 4.30 4.50 - e 0.65 bsc l 0.45 0.75 - l1 1.00 ref l2 0.25 bsc r 0.09 - - r1 0.09 - - x - - 1.350 y - - 1.050 0 8 - 1 5 15 - 2 0 - - all dimensions in mm d e h l a2 b e a1 a c detail ?a? detail ?a? gauge plane ? pin 1 e b e e/2 e1 a2 a d a1 x y see detail 'a' seating plane gauge plane r l l1 l2 ?0.760depth0.0500.02 r1 ? ? ? ? x) ?? ? c detail 'a'
74ahc595 document number: ds35486 rev. 3 - 2 9 of 10 www.diodes.com june 2013 ? diodes incorporated 74ahc595 suggested pad layout please see ap02001 at http://www.diodes.com/dat asheets/ap02001.pdf for the latest version. package type: so-16 package type: tssop-16 dimensions value (in mm) c 1.270 x 0.670 x1 9.560 y 1.450 y1 6.400 dimensions value (in mm) c 0.650 x 0.350 x1 4.900 y 1.400 y1 6.800 x1 x c y y1 pin 1 x1 y (16x) y1 x (16x) 1 c
74ahc595 document number: ds35486 rev. 3 - 2 10 of 10 www.diodes.com june 2013 ? diodes incorporated 74ahc595 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 rese rve the right to make modifications, enhanc ements, improvements, corrections or ot her changes without further notice to this document and any product described herein. diodes incorporated does not assume any liability ari sing out of the application or use of this document or any product described herein; neither does diodes inco rporated convey any license under its patent or trademark rights, nor the rights of others. any customer or us er of this document or products described herein in such applica tions shall assume all risks of such use and will agree to hold diodes incorporated and all the companies whose pr oducts are represented on diodes incorporated website, harmless against all damages. diodes incorporated does not warrant or accept any liability what soever in respect of any pr oducts purchased through unauthoriz ed sales channel. should customers purchase or use diodes inco rporated products for any unintended or u nauthorized application, customers shall i ndemnify and hold diodes incorporated and its representativ es harmless against all claims, damages, ex penses, and attorney fees arising out of, directly or indirectly, any claim of personal injury or death a ssociated with such unintended or unauthorized application. 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. this document is written in english but may be translated into mu ltiple languages for reference. only the english version of t his document is the final and determinative format released by diodes incorporated. life support diodes incorporated products are specifically not authorized for use as critical comp onents in life support devices or systems without the express written approval of the chief executive offi cer of diodes incorporated. as used herein: a. life support devices or syst ems 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 pro perly used in accordance with in structions 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 devic e or system whose failure to perform can be reasonably expect ed 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 ramifi cations of their life support dev ices or systems, and acknowledge and agree that they are solely responsible for a ll legal, regulatory and safety-rel ated requirements concerning the ir products and any use of diodes incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or s ystems-related information or support that may be provided by diodes incorporated. further, customers must fully indemnify diodes incorporate d and its representatives against any damages arising out of the use of diodes incorporated products in such safety-critical, life suppor t devices or systems. copyright ? 2013, diodes incorporated www.diodes.com
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