HD74HC669RPEL 查看數據表（PDF） - Renesas Electronics

零件编号

产品描述 (功能)

生产厂家

HD74HC669RPEL

Synchronous UP/Down Decade Counter Synchronous Up/Down 4-bit binary Counter

Renesas Electronics 

HD74HC668, HD74HC669

Logic Diagram

HD74HC668

Load

U/D

DA

Enable P

Enable T

DB

DC

VCC

DD

CK

HD74HC669

Load

U/D

DA

Enable P

Enable T

DB

DC

DD

VCC

CK

L

TQ

INCK Q

L

TQ

INCK Q

L

TQ

INCK Q

L

TQ

INCK Q

QA

QB

QC

QD

RCO

TQ

IN Q

TQ

IN Q

TQ

IN Q

TQ

IN Q

QA

QB

QC

QD

RCO

Rev.2.00 Mar 30, 2006 page 3 of 10

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