Description

The 74AHCT157D is a high-speed Si-gate CMOS device that belongs to the signal switches/encoders & decoders/multiplexers product category. It is pin compatible with Low Power Schottky TTL (LSTTL) and is specified in compliance with JEDEC standard no. 7A.

Specifications and features

The 74AHCT157D has the following specifications and features:

■ Balanced propagation delays

■ All inputs have a Schmitt-trigger action

■ Inputs accept voltages higher than VCC

■ Multiple input enable for easy expansion

■ Ideal for memory chip select decoding

■ For 74AHC157 only: operates with CMOS input levels

■ For 74AHCT157 only: operates with TTL input levels

■ ESD protection:
◆ HBM JESD22-A114E exceeds 2000 V
◆ MM JESD22-A115-A exceeds 200 V
◆ CDM JESD22-C101C exceeds 1000 V

■ Multiple package options

■ Specified from −40 °C to +85 °C and from −40 °C to +125 °C

Application Scenarios

The 74AHCT157D can be used in various application scenarios such as:

- Signal switching

- Encoder and decoder circuits

- Multiplexing operations

Comparison

- High-speed Si-gate CMOS design

- Pin compatible with Low Power Schottky TTL (LSTTL)

- Balanced propagation delays

- Multiple input enable for easy expansion

- Limited operating temperature range (-40 °C to +85 °C and -40 °C to +125 °C)