74HC594 8-BIT SHIFT REGISTER WITH 8-BIT OUTPUT REGISTER Description Pin Assignments The 74HC594 is a high speed CMOS device. ( Top View ) An eight bit shift register accepts data from the serial input (DS) on Q1 1 16 Vcc asserted low, the shift regisister reset function (SHR) sets all shift Q2 2 15 Q0 register values to zero and is independent of all clocks. Also when Q3 3 14 DS Q4 4 13 STR Q5 5 12 STCP The Q6 6 11 SHCP storage resister includes output Q7S which is used for cascading Q7 7 10 SHR 8 9 Q7S each positive transition of the shift register clock (SHCP). When asserted low, the storage register reset function (STR) 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 (STCP). information between devices. As the information moves into the GND storage register, it is asserted on the push-pull outputs Q0-Q7. SO-16 / TSSOP-16 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 2.0V to 6.0V 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 6.0V 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 74AHC594 Document number: DS35484 Rev. 3 - 2 1 of 10 www.diodes.com June 2013 © Diodes Incorporated 74HC594 Pin Descriptions Pin Number 1 2 3 4 5 6 7 8 9 10 Pin Name Q1 Q2 Q3 Q4 Q5 Q6 Q7 GND Q7S SHR SHCP STCP 11 12 13 14 15 16 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 Shift Register Reset active low Shift Register Clock Input Storage Register Clock Input STR DS Q0 Storage Register Reset active low VCC Supply Voltage Serial Data input Parallel Data Output 0 Logic Diagram STAGE 0 DS D STAGES 1 TO 6 Q D STAGE 7 Q D Q FF0 CP FF7 CP R R SHCP SHR D Q D LATCH CP Q LATCH CP R R STCP STR Q0 74AHC594 Document number: DS35484 Rev. 3 - 2 Q1 Q2 Q3 Q4 Q5 Q6 2 of 10 www.diodes.com Q7 June 2013 © Diodes Incorporated 74HC594 Functional Description and Timing Diagram Control SHR L X STR X L Input SHCP X X Output Function STCP X X DS X X Q7S L NC Qn NC L Clear Shift Register Clear Storage Register H X L H or L Q6S NC Loads DS into shift register stage 0. All QS shifted H H X X NC Qs H H H or L Q6S QnS Contents of shift register moved to starge register all QS -> QN Shift Register one pulse count ahead of storage register. H=HIGH voltage state L=LOW voltage state =LOW to HIGH transition X= don’t care – high or low (not floating) NC= No change SHCP DS STCP SHR STR Q0 Q1 Q6 Q7 Q7S Absolute Maximum Ratings (Note 4) (@TA = +25°C, unless otherwise specified.) Symbol ESD HBM ESD CDM ESD MM Rating 2 1 200 Unit KV KV V V Supply Voltage Range -0.5 to +7.0 VI Input Voltage Range -0.5 to +7.0 V Vo Voltage applied to output in high or low state -0.3 to VCC +0.5 V IIK Input Clamp Current VI < -0.5V -20 mA IIK Input Clamp Current VI > Vcc +0.5V 20 mA IOK Output Clamp Current VO <-0.5V -20 mA IOK Output Clamp Current VO > VCC + 0.5V Q7 standard output Continuous output current Qn bus driver outputs 20 mA ±25 ±35 mA mA Continuous current through Vcc 70 mA VCC IO ICC Note: Description Human Body Model ESD Protection Charged Device Model ESD Protection Machine Model ESD Protection IGND Continuous current through GND -70 mA TJ Operating Junction Temperature -40 to +150 °C TSTG Storage Temperature -65 to +150 °C PTOT Total Power Dissipation 500 mW 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. 74AHC594 Document number: DS35484 Rev. 3 - 2 3 of 10 www.diodes.com June 2013 © Diodes Incorporated 74HC594 Recommended Operating Conditions (Note 5) (@TA = +25°C, unless otherwise specified.) Symbol Parameter Conditions Min Max Unit Supply Voltage 2.0 6.0 V VI Input Voltage 0 Vcc V VO Output Voltage 0 VCC V VCC = 2.0V 1000 Input transition rise or fall rate VCC = 4.5V 500 VCC = 6.0V 400 -40 +125 °C VCC Δt/ΔV TA Note: Operating free-air temperature ns/V 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 Test Conditions TA = +25°C VCC Min Typ TA = -40°C to +85°C TA = -40°C to +125°C Max Min Max Min Max Unit 2.0V 1.5 1.2 1.5 1.5 4.5V 3.15 2.4 3.15 3.15 6.0V 4.2 3.2 4.2 2.0V 0.8 0.5 4.2 0.5 0.5 4.5V 2.1 1.35 1.35 1.35 6.0V 2.8 1.8 2.0 1.9 1.8 2.0V 1.9 1.8 IOH = -20μA All outputs 1.9 4.5V 4.4 4.5 4.4 4.4 6.0V 5.9 6.0 5.9 5.9 IOH = -4mA 4.5V 3.98 4.32 3.84 3.7 IOH = -5.2mA 6.0V 5.48 5.81 5.34 5.2 IOH = -6.0mA 4.5V 3.98 4.32 3.84 3.7 IOH = -7.8mA 6.0V 5.48 5.81 5.34 5.2 2.0V 0 0.1 0.1 0.1 4.5V 0 0.1 0.1 0.1 6.0V 0 0.1 0.1 0.1 IOL = 4.0mA 4.5V .15 0.26 0.33 0.4 IOL = 5.2mA 6.0V .16 0.26 0.33 0.4 Qn Bus Outputs IOL = 6.0mA 4.5V .15 0.26 0.33 0.4 IOL = 7.8mA 6.0V .16 0.26 0.33 0.4 Input Current VI = GND to 5.5V 6.0V ±0.1 ±1 ±1 μA ICC Supply Current VI = GND or VCC IO = 0 6.0V 8.0 80 160 μA Ci Input Capacitance Vi = VCC – or GND 6.0V 3.5 10 10 10 pF VIL Low-level input voltage High Level Output Voltage VOH Q7S output Qn Bus Outputs Low-level Output Voltage VOL II Q7S output IOL = 20μA All outputs V V V V Operating Characteristics (@TA = +25°C, unless otherwise specified.) Parameter Cpd Power dissipation capacitance 74AHC594 Document number: DS35484 Rev. 3 - 2 Test Conditions VCC = 5V Typ Unit f = 1 MHz all outputs switching-no load 51 pF 4 of 10 www.diodes.com June 2013 © Diodes Incorporated 74HC594 Switching Characteristics TA = +25°C Min Typ Max -40°C to +85°C -40°C to +125°C Symbol / Parameter Pins Test Conditions VCC 2.0V 6 30 4.8 4 fMAX Maximum Frequency SHCP or STCP Figure 2 4.5V 30 92 24 20 100 SHCP HIGH or LOW tW Pulse Width tSU Set-up Time STCP HIGH or LOW 5.0V Figure 2 Figure 2 SHR and STR HIGH or LOW Figure 2 DS to SHCP Figure 2 SHR to STCP Figure 2 SHCP to STCP Figure 2 SHCP to Q7S Figure 2 tPD Propagation Delay STCP to Qn tH Hold Time DS to SHCP tREC Recovery Time SHR to SHCP and STR to STCP SHR to Q7S Figure 2 Figure 2 Figure 2 Figure 2 tPHL Propagation Delay STR to Qn tTHL Transition Time Figure 2 Serial data output Q7S Figure 2 Parallel Data Outputs QN Figure 2 74AHC594 Document number: DS35484 Rev. 3 - 2 Min Max Min 6.0V 35 109 28 24 2.0V 80 10 100 120 4.5V 16 4 20 24 MHz 6.0V 14 3 17 20 2.0V 80 10 100 120 4.5V 16 4 20 24 6.0V 14 3 17 20 2.0V 80 14 100 120 4.5V 16 5 20 24 6.0V 14 4 17 20 2.0V 100 10 125 150 4.5V 20 4 25 30 6.0V 17 3 21 26 2.0V 100 14 125 150 4.5V 20 5 25 30 6.0V 17 4 21 26 2.0V 100 17 125 150 4.5V 20 6 25 30 6.0V 17 5 21 26 2.0V 44 150 185 225 4.5V 16 30 37 45 5.0V 13 14 31 6.0V 26 38 2.0V 44 150 185 225 4.5V 16 30 37 45 5.0V 13 14 -8 30 38 2.0V 25 31 6.0V 26 4.5V 5 -3 6.0V 4 -2 35 6 7 5 6 ns ns ns ns ns ns 2.0V 50 -14 65 75 4.5V 10 -5 13 15 6.0V 9 -4 11 13 2.0V 39 150 185 225 4.5V 14 30 37 45 5.0V 11 6.0V 12 26 31 38 2.0V 39 125 155 185 4.5V 14 25 31 37 5.0V 11 12 26 6.0V 21 31 2.0V 19 75 95 110 4.5V 7 15 19 22 6.0V 6 13 16 19 2.0V 14 60 75 90 4.5V 5 12 15 18 6.0V 4 10 13 15 5 of 10 www.diodes.com Unit Max ns ns ns ns ns ns June 2013 © Diodes Incorporated 74HC594 Parameter Measurement Information VCC Inputs VI VM CL 2.0V VCC tr/tf 6ns VCC/2 50pF 4.5V VCC 6ns VCC/2 50pF 5.0V VCC 6ns VCC/2 15pF 6.0V VCC 6ns VCC/2 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 Notes: A. Includes test lead and test apparatus capacitance. B. All pulses are supplied at pulse repetition rate ≤ 10 MHz. C. Inputs are measured separately one transition per measurement. D. tPLH and tPHL are the same as tPD. Figure 2 Load Circuit and Voltage Waveforms 74AHC594 Document number: DS35484 Rev. 3 - 2 6 of 10 www.diodes.com June 2013 © Diodes Incorporated 74HC594 Ordering Information Note: 7” Tape and Reel (Note 6) Part Number Suffix Part Number Package Code Packaging 74HC594S16-13 S16 SO-16 2500/Tape & Reel -13 74HC594T16-13 T16 TSSOP-16 2500/Tape & Reel -13 Quantity 6. The taping orientation is located on our website at http://www.diodes.com/datasheets/ap02007.pdf Marking Information (1) SO-16, TSSOP16 74AHC594 Document number: DS35484 Rev. 3 - 2 Part Number Package 74HC594S16 SO-16 74HC594T16 TSSOP-16 7 of 10 www.diodes.com June 2013 © Diodes Incorporated 74HC594 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' 74AHC594 Document number: DS35484 Rev. 3 - 2 8 of 10 www.diodes.com June 2013 © Diodes Incorporated 74HC594 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) 74AHC594 Document number: DS35484 Rev. 3 - 2 C 9 of 10 www.diodes.com June 2013 © Diodes Incorporated 74HC594 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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