74AHC574; 74AHCT574

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.

When OE is LOW the contents of the 8 flip-flops are available at the outputs. When OE is HIGH, the outputs go to the high-impedance OFF-state. Operation of the OE input does not affect the state of the flip-flops.

The 74AHC574; 74AHCT574 is functionally identical to the 74AHC564; 74AHCT564, but has non-inverting outputs. The 74AHC574; 74AHCT574 is functionally identical to the 74AHC374; 74AHCT374, but has a different pinning.

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 Cel to +85 Cel and from -40 Cel to +125 Cel

Products/packages

Pricing/ordering/availability

Block diagrams/pinning

Parametrics/similar products

Similar products

74AHC574; 74AHCT574 links to the similar products page containing an overview of products that are similar in function or related to the type number(s) as listed on this page. The similar products page includes products from the same catalog tree(s), relevant selection guides and products from the same functional category.

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