General description
The 74AHC594; 74AHCT594 is a high-speed Si-gate CMOS device and is pin compatible with Low-Power Schottky TTL (LSTTL). It is specified in compliance with JEDEC standard No. 7-A.

Features
■ Balanced propagation delays
■ All inputs have Schmitt-trigger actions
■ Inputs accept voltages higher than VCC
■ Wide supply voltage range from 2.0 V to 5.5 V
■ 8-bit serial-in, parallel-out shift register with storage
■ Independent direct overriding clears on shift and storage registers
■ Independent clocks for shift and storage registers
■ Latch-up performance exceeds 100 mA per JESD78 Class II
■ Input levels:
   ◆ For 74AHC594: CMOS level
   ◆ For 74AHCT594: TTL level
■ ESD protection:
   ◆ HBM EIA/JESD22-A114E exceeds 2000 V
   ◆ MM EIA/JESD22-A115-A exceeds 200 V
   ◆ CDM EIA/JESD22-C101C exceeds 1000 V
■ Multiple package options
■ Specified from −40 °C to +85 °C and from −40 °C to +125 °C

Applications
■ Serial-to parallel data conversion
■ Remote control holding register