DESCRIPTION
The 74AHC/AHCT157 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.