Document
SN54HC259, SN74HC259
SCLS134F – DECEMBER 1982 – REVISED MARCH 2022
SNx4HC259 8-Bit Addressable Latches
1 Features
• Wide operating voltage range of 2 V to 6 V • High-current inverting outputs drive up to 10
LSTTL loads • Low power consumption, 80-μA max ICC • Typical tpd = 14 ns • ±4-mA output drive at 5 V • Low input current of 1 μA max • 8-bit parallel-out storage register performs serial-
to-parallel conversion with storage • Asynchronous parallel clear • Active-high decoder • Enable input simplifies expansion • Expandable for n-bit applications • Four distinct functional modes
2 Description
These 8-bit addressable latches are designed for general-purpose storage applications in digital systems. Specific uses include working registers, serial-holding registers, and active-high decoders or demultiplexers. They are multifunctional devices capable of storing single-line data in eight addressable latches and being a 1-of-8 decoder or demultiplexer with active-high outputs.
PART NUMBER SN74HC259D SN74HC259N SN74HC259NS SN74HC259PW SN54HC259J SNJ54HC259FK
Device Information
PACKAGE(1) BODY SIZE (NOM)
SOIC (16) 9.90 mm × 3.90 mm
PDIP (16) 19.31 mm × 6.35 mm
SO (16)
6.20 mm × 5.30 mm
TSSOP (16) 5.00 mm × 4.40 mm
CDIP (16) 24.38 mm × 6.92 mm
LCCC (20) 8.89 mm × 8.45 mm
(1) For all available packages, see the orderable addendum at the end of the document.
Pin numbers are for the D, J, N, NS, PW, and W packages. Functional Block Diagram
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.
SN54HC259, SN74HC259
SCLS134F – DECEMBER 1982 – REVISED MARCH 2022
www.ti.com
Table of Contents
1 Features............................................................................1 2 Description.......................................................................1 3 Revision History.............................................................. 2 4 Pin Configuration and Functions...................................3 5 Specifications.................................................................. 4
5.1 Absolute Maximum Ratings........................................ 4 5.2 Recommended Operating Conditions(1) .................... 4 5.3 Thermal Information....................................................4 5.4 Electrical Characteristics.............................................5 5.5 Timing Requirements ................................................. 5 5.6 Switching Characteristics ...........................................6 5.7 Operating Characteristics........................................... 6 6 Parameter Measurement Information............................ 7 7 Detailed Description........................................................8
7.1 Overview..................................................................... 8 7.2 Functional Block Diagram.......................................