HD74HC670 - 4-by-4 Register

Hitachi Semiconductor

HD74HC670 Datasheet Preview — Preview of HD74HC670 PDF

Datasheet Details

Part number	HD74HC670
Manufacturer	Hitachi Semiconductor
File Size	56.76 KB
Description	4-by-4 Register
Datasheet	HD74HC670_HitachiSemiconductor.pdf

HD74HC670 Product details

Description

The HD74HC670, 16-bit register file is organized as 4 words of 4 bits each and separate on-chip decoding is provided for addressing the four word locations to either write-in or retrieve data.

Features

High Speed Operation: tpd (Read Select to Q) = 21 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) HD74HC670 Function Table Write Inputs WB L L H H X WA L H L H X GW L L L L H Word 0 Q=D Q0 Q0 Q0 Q0 1 Q0 Q=D Q0 Q0 Q0 2 Q0 Q0 Q=D Q0 Q0 3 Q0 Q0 Q0 Q=D Q0 Read Inputs RB L L H H X RA L H L H X GR L L.

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Published: Mar 23, 2005 |