TC74HC148AP/AF

2007-10-01

1

TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic

TC74HC148AP,TC74HC148AF

8-to-3 Line Priority Encoder

The TC74HC148A is a high speed CMOS 8-to-3 LINE

ENCODER fabricated with silicon gate C2MOS technology.

It achieves the high speed operation similar to equivalent

LSTTL while maintaining the CMOS low power dissipation.

All data inputs and outputs of these encoders are active at the

low logic level.

The encoder detects a low level of the highest order among

eight input signals and outputs the corresponding signal position

in binaly code.

Enable Input EI and Enable Output EO are used to easily

cascade without using external circuits.

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 74LS148

Pin Assignment

TC74HC148AP

TC74HC148AF

Weight

DIP16-P-300-2.54A

: 1.00 g (typ.)

SOP16-P-300-1.27A

: 0.18 g (typ.)