DESCRIPTION
The 74AHC/AHCT257 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
• Non-inverting data path
• 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 °C and −40 to +125 °C.