General description

The 74AHC574; 74AHCT574 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.

The 74AHC574; 74AHCT574 are octal D-type flip-flops featuring separate D-type inputs for each flip-flop and 3-state outputs for bus oriented applications. A clock (CP) and an output enable (OE) input are common to all flip-flops.

The 8 flip-flops will store the state of their individual D-inputs that meet the set-up and hold times requirements on the LOW-to-HIGH CP transition.

Features

■ Balanced propagation delays

■ All inputs have a Schmitt-trigger action

■ 3-state non-inverting outputs for bus orientated applications

■ 8-bit positive, edge-triggered register

■ Independent register and 3-state buffer operation

■ Common 3-state output enable input

■ For 74AHC574 only: operates with CMOS input levels

■ For 74AHCT574 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