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74F574

Part Number	74F574
Manufacturer	Philips
Description	Octal transparent latch
Published	May 28, 2005
Detailed Description	INTEGRATED CIRCUITS 74F573 Octal transparent latch (3-State) 74F574 Octal transparent latch (3-State) Product specifica...
Datasheet	74F574 PDF File

Overview

INTEGRATED CIRCUITS 74F573 Octal transparent latch (3-State) 74F574 Octal transparent latch (3-State) Product specification IC15 Data Handbook 1989 Oct 16 Philips Semiconductors Philips Semiconductors Product specification Latch/flip-flop 74F573 Octal Transparent Latch (3-State) 74F574 Octal D Flip-Flop (3-State) FEATURES 74F573/74F574 • 74F573 is broadside pinout version of 74F373 • 74F574 is broadside pinout version of 74F374 • Inputs and Outputs on opposite side of package allow easy interface to Microprocessors The 74F574 is functionally identical to the 74F374 but has a broadside pinout configuration to facilitate PC board layout and allow easy interface with microprocesors.
It is an 8-bit, edge triggered register coupled to eight 3-State output buffers.
The two sections of the device are controlled independently by the clock (CP) and Output Enable (OE) control gates.
The register is fully edge-triggered.
The state of each D input, one setup time before the Low-to-High clock transition is transferred to the corresponding flip-flop’s Q output.
The 3-State output buffers are designed to drive heavily loaded 3-State buses, MOS memories, or MOS microprocessors.
The active Low Output Enable (OE) controls all eight 3-State buffers independently of the latch operation.
When OE is Low, the latched or transparent data appears at the outputs.
When OE is High, the outputs are in high impedance “off” state, which means they will neither drive nor load the bus.
TYPICAL SUPPLY CURRENT (TOTAL) 35mA TYPICAL SUPPLY CURRENT (TOTAL) 50mA • Useful as an Input or Output port for Microprocessors • 3-State Outputs for Bus interfacing • Common Output Enable • 74F563 and 74F564 are inverting version of 74F573 and 74F574 respectively • 3-State Outputs glitch free during power-up and power-down • These are High-Speed replacements for N8TS805 and N8TS806 DESCRIPTION The 74F573 is an octal transparent latch coupled to eight 3-State output buffers.
The two sections of the device a...

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