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SN74AHCT594

SCLS417I – JUNE 1998 – REVISED DECEMBER 2014

SN74AHCT594 8-Bit Shift Registers With Output Registers

1 Features 2 Applications

• Inputs Are TTL-Voltage Compatible • Network Switches

• 8-Bit Serial-In, Parallel-Out Shift Registers With • Power Infrastructure

Storage • PCs, Notebooks

• Independent Direct Overriding Clears on Shift and • Health and Fitness, Wearables

Storage Registers • Tests and Measurements

• Independent Clocks for Both Shift and Storage

Registers 3 Description

• Latch-Up Performance Exceeds 100 mA Per The SN74AHCT594 device contains an 8-bit serial-in,

JESD, 78 Class II parallel-out shift register that feeds an 8-bit D-type

storage register.

• ESD Protection Exceeds JESD 22

– 3500-V Human-Body Model Device Information(1)

– 200-V Machine Model PART NUMBER PACKAGE BODY SIZE (NOM)

– 2000-V Charged-Device Model PDIP (16) 19.30 mm × 6.35 mm

SSOP (16) 6.50 mm × 5.30 mm

SN74AHCT594 TSSOP (16) 5.00 mm × 4.40 mm

SOP (16) 10.20 mm × 5.30 mm

SOIC (16) 9.00 mm × 3.90 mm

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

4 Simplied Schematic

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

SN74AHCT594

SCLS417I – JUNE 1998 – REVISED DECEMBER 2014

www.ti.com

Table of Contents

1 Features 9 Detailed Description.................................................................. 1.............................................. 8

9.1 Overview ................................................................... 8

2 Applications ........................................................... 1

9.2 Functional Block Diagram ......................................... 8

3 Description ............................................................. 1

9.3 Feature Description................................................... 9

4 Simplied Schematic............................................. 1

9.4 Device Functional Modes.......................................... 9

5 Revision History..................................................... 210 Application and Implementation........................ 10

6 Pin Conguration and Functions ......................... 310.1 Application Information.......................................... 10

7 Specications......................................................... 410.2 Typical Application ............................................... 10

7.1 Absolute Maximum Ratings ...................................... 411 Power Supply Recommendations ..................... 11

7.2 ESD Ratings ............................................................ 412 Layout................................................................... 12

7.3 Recommended Operating Conditions ....................... 4

12.1 Layout Guidelines ................................................. 12

7.4 Thermal Information .................................................. 5

12.2 Layout Example .................................................... 12

7.5 Electrical Characteristics........................................... 5

13 Device and Documentation Support ................. 12

7.6 Timing Requirements, VCC = 5 V ± 0.5 V.................. 5

13.1 Related Links ........................................................ 12

7.7 Switching Characteristics, V

CC = 5 V ± 0.5 V............ 6

13.2 Trademarks ........................................................... 12

7.8 Noise Characteristics ................................................ 6

13.3 Electrostatic Discharge Caution............................ 12

7.9 Operating Characteristics.......................................... 6

13.4 Glossary ................................................................ 12

7.10 Typical Characteristics ............................................ 6

14 Mechanical, Packaging, and Orderable

8 Parameter Measurement Information .................. 7Information ........................................................... 12

5 Revision History

Changes from Revision H (June 1998) to Revision I Page

• Added , table, table, table, table,Applications Device Information Pin Functions ESD Ratings Thermal Information

Typical Characteristics Feature Description Device Functional Modes Application and Implementation, section, ,

section, section, section, section, andPower Supply Recommendations Layout Device and Documentation Support

Mechanical, Packaging, and Orderable Information section. ................................................................................................. 1

• Deleted table. .......................................................................................................................................Ordering Information 1

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