TC74HC259AP/AF/AFN

2007-10-01

1

TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic

TC74HC259AP,TC74HC259AF,TC74HC259AFN

8-Bit Addressable Latch

The TC74HC259A is a high speed CMOS ADDRESSABLE

It achieve the high speed operation similar to equivalent

LSTTL while maintaining the CMOS low power dissipation.

The respective bits are controlled by address inputs A, B, and

C. When CLEAR input is held high and enable input G is held

low, the data is written into the bit selected by address inputs,

the other bit hold their previous conditions.

When both CLEAR and G held high, writing of all bits is

inhibited regardless of adress inputs, and their previous

condition are held. When CLEAR is held low and G is held

high, all bits are resent to low regardless of the other inputs.

When both of CLEAR and G held low, all bits which isn’t

selected by adress inputs are resent to low.

All inputs are equipped with protection circuits against static

discharge or transient excess voltage.

Features

• Output drive capability: 10 LSTTL loads

•

• Pin and function compatible with 74LS259

Pin Assignment

Note: xxxFN (JEDEC SOP) is not available in

Japan.

TC74HC259AP

TC74HC259AF

TC74HC259AFN

Weight

DIP16-P-300-2.54A

: 1.00 g (typ.)

SOP16-P-300-1.27A

: 0.18 g (typ.)

SOL16-P-150-1.27

: 0.13 g (typ.)