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.

Device Information

PART NUMBER

PACKAGE

(1)

BODY SIZE (NOM)

SN74HC259D

SOIC (16)

9.90 mm × 3.90 mm

SN74HC259N

PDIP (16)

19.31 mm × 6.35 mm

SN74HC259NS

SO (16)

6.20 mm × 5.30 mm

SN74HC259PW

TSSOP (16) 5.00 mm × 4.40 mm

SN54HC259J

CDIP (16)

24.38 mm × 6.92 mm

SNJ54HC259FK

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

SN54HC259, SN74HC259

SCLS134F – DECEMBER 1982 – REVISED MARCH 2022

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.