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HD74HC574 - Octal D-type Flip-Flop

Description

These devices are positive edge triggered flip-flops.

The difference between HD74HC564 and HD74HC574 is only that the former has inverting outputs and the latter has noninvertering outputs.

Features

  • High Speed Operation: tpd (Clock to Output) = 13 ns typ (CL = 50 pF) High Output Current: Fanout of 15 LSTTL Loads Wide Operating Voltage: VCC = 2 to 6 V Low Input Current: 1 µA max Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C) Function Table Outputs Output Control L L L H Q0 : Q0 : L X Clock Data H L X X HD74HC564 L H Q0 Z HD74HD574 H L Q0 Z level of Q before the indicated Steady-sate input conditions were established. comp.

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📁 Similar Datasheet

Part Number Description Manufacturer
HD74HC574 Octal D-type Flip-Flops Renesas
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Other Datasheets by Hitachi Semiconductor (now Renesas)

Part Number Description
HD74HC573 Octal Transparent Latches
HD74HC51 AND-OR-INVERT Gate
HD74HC533 Octal D-type Transparent Latches
HD74HC534 Octal D-type Flip-Flop
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Full PDF Text Transcription

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HD74HC564/HD74HC574 Octal D-type Flip-Flops (with 3-state outputs) Description These devices are positive edge triggered flip-flops. The difference between HD74HC564 and HD74HC574 is only that the former has inverting outputs and the latter has noninvertering outputs. Data at the D inputs, meeting the set-up and hold time requirements, are transferred to the Q or Q outputs on positive going transitions of the clock (CK) input. when a high logic level is applied to the output cotrol (OC) input, all outputs go to a high impedance state, regardless of what signals are present at the other inputs and the state of the storage elements.
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