HD74HC160 판매점 - Synchronous Decade/4-bit Binary/Counter(Direct Clear/Synchronous Clear)

HD74HC160 반도체 회로 부품 판매점

Synchronous Decade/4-bit Binary/Counter(Direct Clear/Synchronous Clear)

Hitachi Semiconductor

HD74HC160/HD74HC161/

HD74HC162/HD74HC163

Synchronous Decade Counter (Direct Clear)

Synchronous 4-bit Binary Counter (Direct Clear)

Synchronous Decade Counter (Synchronous Clear)

Synchronous 4-bit Binary Counter (Synchronous Clear)

Description

The HD74HC160 and the HD74HC162 are 4 bit decade counters, and the HD74HC161 and the

HD74HC163 are 4 bit binary counters All flip-flops are clocked simultaneously on the low to high to

transition (positive edge) of the clock input waveform.

These counters may be preset using the load input. Presetting of all four flip-flops is synchronous to thte

rising edge of clock. When load is held low counting is disabled and the data on the A, B, C, and D inputs

is loaded into the counter on the rising edge of clock. If the load input is taken high before the positive

edge of clock the count operation will be unaffected.

All of these counters may be cleared by utilizing the clear input. The clear function on the HD74HC162

and HD74HC163 counters are synchronous to the clock. That is, the counters are cleared on the positive

edge of clock while the clear input is held low.

The HD74HC160 and HD74HC161 counters are cleared asynchronously. When the clear is taken low the

counter is cleared immediately regardless of the clock.

Two active high enable inputs Enable P and Enable T and a ripple carry output are provided to enable easy

cascading of counters. Both enable inputs must be high to count. The Enable T input also enables the

Ripple Carry output. When enabled, the Ripple Carry outputs a positive pulse when the counter overflows.

This pulse is approximately equal in duration to the high level portion of the QA outputs. The Ripple Carry

output is fed to successive cascaded stages to facilitate easy implementation of N-bit counters.

Features

• High Speed Operation: tpd (Clock to Q) = 18 ns typ (CL = 50 pF)

• High Output Current: Fanout of 10 LSTTL Loads

• Wide Operating Voltage: VCC = 2 to 6 V

• Low Input Current: 1 µA max

HD74HC160/HD74HC161/HD74HC162/HD74HC163

• Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C)

Function Table

Inputs

Clock

Clear*1

Load

Enable P

Enable T

Outputs

Reset-clear

H L X X Load input data

H H H H Count

H H L X No count

H H X L No count

Note: 1. 162 and 163 Only-160 and 161 are Asynchronous Clear Devices

Decade Counter

Binary Counter

Asynchronous clear

HD74HC160P

HD74HC161P

Synchronous clear

HD74HC162P

HD74HC163P

Pin Arrangement

Clear 1

Clock 2

Data

Inputs C 5

Enable P 7

GND 8

CLR

CK Ripple

Carry

A QA

B QB

C QC

D QD

Load

(Top view)

16 VCC

Ripple

Carry Output

14 QA

13 QB

12 QC

Outputs

11 QD

10 Enable T

9 Load

PDF 파일 내의 페이지 : 총 16 페이지

제조업체: Hitachi Semiconductor

( hitachi )

HD74HC160 data

데이터시트 다운로드 :

[ HD74HC160.PDF ]

[ HD74HC160 다른 제조사 검색 ]

국내 전력반도체 판매점

상호 : 아이지 인터내셔날

전화번호 : 051-319-2877

[ 홈페이지 ]

IGBT, TR 모듈, SCR, 다이오드모듈, 각종 전력 휴즈

( IYXS, Powerex, Toshiba, Fuji, Bussmann, Eaton )

전력반도체 문의 : 010-3582-2743

일반적인 전자부품 판매점

디바이스마트

IC114

엘레파츠

ICbanQ

Mouser Electronics

DigiKey Electronics

Element14

HD74HC160 반도체 회로 부품 판매점

Synchronous Decade/4-bit Binary/Counter(Direct Clear/Synchronous Clear)

국내 전력반도체 판매점

일반적인 전자부품 판매점

관련 데이터시트