74AHC595 8-BIT SHIFT REGISTER WITH 8-BIT OUTPUT REGISTER Description Pin Assignments The 74AHC595 is an advanced high speed CMOS device. An eight bit shift register accepts data from the serial input (DS) on each positive transition of the shift 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 register is placed in the output register with a rising pulse on the storages resister clock (SHCP). With the output enable (OEሻ 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 Applications Wide Supply Voltage Range from 2.0 V to 5.5V Sinks or sources 8mA at VCC = 4.5V General Purpose Logic Serial to Parallel Data conversion CMOS low power consumption Capture and hold data for extended periods of time Schmitt Trigger Action at All Inputs Inputs Accept up to 5.5V Allow simple serial bit streams from a microcontroller to control as many peripheral lines as needed ESD Protection Tested per JESD 22 Wide array of products such as: Exceeds 200-V Machine Model (A115-A) Computer peripherals Exceeds 2000-V Human Body Model (A114-A) Appliances Exceeds 1000-V Charged Device Model (C101C) Industrial control 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) Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. 2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and 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 1 of 10 www.diodes.com June 2013 © Diodes Incorporated 74AHC595 Pin Descriptions Pin Number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Pin Name Q1 Q2 Q3 Q4 Q5 Q6 Q7 GND Q7S Functional Diagram Description Parallel Data Output 1 Parallel Data Output 2 Parallel Data Output 3 Parallel Data Output 4 Parallel Data Output 5 Parallel Data Output 6 Parallel Data Output 7 Ground Serial Data Output MR SHCP STCP Master Reset Input OE Output Enable Input DS Q0 Vcc Serial Data Input Parallel Data Output 0 Supply Voltage Shift Register Clock Input Storage Register Clock Input Logic Diagram 74AHC595 Document number: DS35486 Rev. 3 - 2 2 of 10 www.diodes.com June 2013 © Diodes Incorporated 74AHC595 Functional Description and Timing Diagram Control Input Output SHCP STCP OE MR DS Q7S Qn X X L L L NC X X L L L L H L L Z X X L H Q6S NC X L H NC QnS L H Q6S QnS Function Low-level asserted on MR clears shift register. Storage register is unchanged Empty shift register transferred to storage register Shift register remains clear;: All Q ouputs in Z state. 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 Contents of shift register copied to storage register. With output now in active state the storage resister contents appear on Q outputs. 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 Z-state Q0 Z-state Q1 Z-state Q6 Z-state Q7 Q7S 74AHC595 Document number: DS35486 Rev. 3 - 2 3 of 10 www.diodes.com June 2013 © Diodes Incorporated 74AHC595 Absolute Maximum Ratings (Note 4) (@TA = +25°C, unless otherwise specified.) Symbol ESD HBM ESD CDM ESD MM VCC VI Vo IIK IOK IOK IO ICC IGND TJ TSTG PTOT Note: Parameter Human Body Model ESD Protection Charged Device Model ESD Protection Machine Model ESD Protection Supply Voltage Range Input Voltage Range Voltage applied to output in high or low state Rating 2 1 200 -0.5 to 7.0 -0.5 to 7.0 Unit KV KV V V V V mA mA mA mA mA mA °C °C mW -0.3 to VCC +0.5 -20 -20 25 +/- 25 75 -75 -40 to 150 -65 to 150 500 Input Clamp Current VI < -0.5V Output Clamp Current VO <-0.5V Output Clamp Current VO > VCC + 0.5V Continuous output current Continuous current through Vcc or GND Continuous current through Vcc or GND Operating Junction Temperature Storage Temperature Total Power Dissipation 4. Stresses beyond the absolute maximum may result in immediate failure or reduced reliability. These are stress values and device operation should be within recommend values. Recommended Operating Conditions (Note 5) (@TA = +25°C, unless otherwise specified.) Symbol VCC VI VO Parameter Supply Voltage Input Voltage Output Voltage Δt/ΔV Input transition Rise or Fall Rate TA Operating Free-Air Temperature Note: Conditions Active Mode Min 2.0 0 0 VCC = 3.0V to 3.6V VCC = 4.5V to 5.5V -40 Max 5.5 5.5 Unit V V V VCC 100 20 +125 ns/V °C 5. Unused inputs should be held at VCC or Ground. Electrical Characteristics (@TA = +25°C, unless otherwise specified.) Symbol Parameter VIH High-level Input Voltage VIL Low-level input voltage VOH High Level Output Voltage VOL II Low-level Output Voltage Input Current IOZ OFF-state output current ICC Supply Current Ci Input Capacitance Test Conditions VCC IOH = -50μA IOH = -50μA IOH = -50μA IOH = -4mA IOH = -8mA IOL = 50μA IOL = 50μA IOL = 50μA IOL = 4mA IOL = 8mA VI = GND to 5.5V VI = VIH or VIL; VO = VCC or GND VI = GND or VCC IO = 0 2.0V 3.0V 5.5V 2.0V 3.0V 5.5V 2.0V Vi = VCC or GND 74AHC595 Document number: DS35486 Rev. 3 - 2 3.0V 4.5V 3.0V 4.5V 2.0V Min 1.5 2.1 3.85 1.9 2.9 4.4 2.58 3.94 TA = +25°C Typ Max 0.5 0.9 1.65 2.0 3.0 4.5 0 0.1 0 0.1 0 0.1 0.36 0.36 0.1 ±0.1 TA = -40°C to +85°C TA = -40°C to +125°C Min Max Min Max 1.5 1.5 2.1 2.1 3.85 3.85 0.5 0.5 0.9 0.9 1.65 1.65 1.9 1.9 2.9 2.9 4.4 4.4 2.48 2.40 3.80 3.70 0.1 0.1 0.1 0.1 0.1 0.1 0.44 0.55 0.44 0.55 ±1 ±2 Unit V V V 5.5V 5.5V ±0.25 ±2.5 ±10 μA 5.5V 4.0 40 80 μA 5.5V 4 10 10 10 pF 3.0V 4.5V 3.0V 4.5V 4 of 10 www.diodes.com V μA June 2013 © Diodes Incorporated 74AHC595 Switching Characteristics Symbol / Parameter Pins Test Conditions fMAX Maximum Frequency SHCP or STCP Figure 2 SHCP HIGH or LOW Figure 2 tW Pulse Width STCP HIGH or LOW Figure 2 MR LOW Figure 2 DS to SHCP Figure 2 SHCP to STCP Figure 2 tH Hold Time DS to SHCP Figure 2 tREC Recovery Time MR to SHCP Figure 2 tSU Set-up Time SHCP to Q7S tPD Propagation Delay STCP to Qn MR to Q7S tEN Enable Time OE to Qn tDIS Disable Time OE to Qn Figure 2 CL = 15pF Figure 2 CL = 50pF Figure 2 CL = 15pF Figure 2 CL = 50pF Figure 2 CL = 15pF Figure 2 CL = 50pF Figure 2 CL = 15pF Figure 2 CL = 50pF Figure 2 CL = 15pF Figure 2 CL = 50pF VCC Min TA = +25°C Typ Max -40°C to +85°C -40°C to +125°C Min Max Min Max 3.0V to 3.6V 80 125 60 40 4.5V to 5.5V 130 70 110 90 3.0V to 3.6V 5.0 5.0 5.0 4.5V to 5.5V 5.0 5.0 5.0 3.0V to 3.6V 5.0 5.0 5.0 4.5V to 5.5V 5.0 5.0 5.0 3.0V to 3.6V 5.0 5.0 5.0 4.5V to 5.5V 5.0 5.0 5.0 3.0V to 3.6V 3.5 3.5 3.5 4.5V to 5.5V 3.0 3.0 3.0 3.0V to 3.6V 8.5 8.5 8.5 4.5V to 5.5V 5.0 5.0 5.0 3.0V to 3.6V 1.5 1.5 1.5 4.5V to 5.5V 2.0 2.0 2.0 3.0V to 3.6V 3.0 3.0 3.0 4.5V to 5.5V 2.5 13.0 2.5 2.5 3.0V to 3.6V 5.7 1.0 15.0 1.0 16.5 4.5V to 5.5V 4.0 8.2 1.0 9.4 1.0 10.5 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 3.0V to 3.6V 5.9 11.9 1.0 13.5 1.0 15.0 4.5V to 5.5V 4.2 7.4 1.0 8.5 1.0 10.5 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 3.0V to 3.6V 5.9 12.8 1.0 13.7 1.0 15.0 4.5 V to 5.5V 4.4 8.0 1.0 9.1 1.0 10.5 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 3.0V to 3.6V 5.6 11.5 1.0 13.5 1.0 15.0 4.5V to 5.5V 4.0 8.6 1.0 10.0 1.0 10.5 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 3.0V to 3.6V 5.4 11.0 1.0 13.0 1.0 14.5 4.5V to 5.5V 3.8 8.0 1.0 9.5 1.0 10.5 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 Unit MHz ns ns ns ns ns ns ns ns ns ns Operating Characteristics (@TA = +25°C, unless otherwise specified.) Parameter Cpd Power dissipation capacitance 74AHC595 Document number: DS35486 Rev. 3 - 2 Test Conditions VCC = 5V Typ Unit f = 1 MHz all outputs switching-no load 42 pF 5 of 10 www.diodes.com June 2013 © Diodes Incorporated 74AHC595 Parameter Measurement Information RL From Output Under Test VLOAD TEST Vload tPLH/tPHL Open CL tPLZ/tPZL VCC (see Note A) tPHZ/tPZH GND Vcc 3.3V -3.6V 4.5V to 5.5V Notes: Inputs VM CL VCC tr/tf 3ns VCC/2 15pF, 50pF VCC 3ns VCC/2 15pF, 50pF VI 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 A .Includes test lead and test apparatus capacitance. B. Output Waveform 1 depends on the internal QN node being low and behaves in this manner based on OE pin. Output Waveform 2 depends on the internal QN 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. tPLH and tPHL are the same as tPD. Figure 2. Load Circuit and Voltage Waveforms 74AHC595 Document number: DS35486 Rev. 3 - 2 6 of 10 www.diodes.com June 2013 © Diodes Incorporated 74AHC595 Ordering Information Part Number 7” Tape and Reel (Note 6) Part Number Suffix Package Code Packaging 74AHC595S16-13 S16 SO-16 2500/Tape & Reel -13 74AHC595T16-13 T16 TSSOP-16 2500/Tape & Reel -13 Note: Quantity 6. The taping orientation is located on our website at http://www.diodes.com/datasheets/ap02007.pdf Marking Information (1) SO-16, TSSOP16 Part Number 74AHC595S16 74AHC595T16 74AHC595 Document number: DS35486 Rev. 3 - 2 7 of 10 www.diodes.com Package SO-16 TSSOP-16 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 H E Gauge Plane L Detail ‘A’ D A A2 e B A1 C 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 Θ 0 8 All Dimensions in mm Detail ‘A’ Package Type: TSSOP-16 E/2 SEE DETAIL 'A' E1 E Y X PIN 1 x) b e Ø0.760Depth0.050±0.02 A2 R1 D R L2 C GAUGE PLANE A L SEATING PLANE A1 L1 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 Θ 0° 8° Θ1 5° 15° Θ2 0° All Dimensions in mm DETAIL 'A' 74AHC595 Document number: DS35486 Rev. 3 - 2 8 of 10 www.diodes.com June 2013 © Diodes Incorporated 74AHC595 Suggested Pad Layout Please see AP02001 at http://www.diodes.com/datasheets/ap02001.pdf for the latest version. Package Type: SO-16 X1 Y1 Y Pin 1 Dimensions C X X1 Y Y1 Value (in mm) 1.270 0.670 9.560 1.450 6.400 C X Package Type: TSSOP-16 X1 Dimensions C X X1 Y Y1 Y1 Y (16x) Value (in mm) 0.650 0.350 4.900 1.400 6.800 1 X (16x) 74AHC595 Document number: DS35486 Rev. 3 - 2 C 9 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 reserve the right to make modifications, enhancements, improvements, corrections or other changes without further notice to this document and any product described herein. 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