DESCRIPTION

The 74AHC/AHCT138 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard No. 7A.

FEATURES

• ESD protection:

HBM EIA/JESD22-A114-A

exceeds 2000 V

MM EIA/JESD22-A115-A

exceeds 200 V

CDM EIA/JESD22-C101

exceeds 1000 V

• Balanced propagation delays

• All inputs have Schmitt-trigger

actions

• Multiple input enable for easy

expansion

• Ideal for memory chip select

decoding

• Inputs accept voltages higher than

VCC

• For AHC only:

operates with CMOS input levels

• For AHCT only:

operates with TTL input levels

• Specified from

−40 to +85 and +125 °C.