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MC74ACT161ML2 PDF预览

MC74ACT161ML2

更新时间: 2024-09-30 04:38:07
品牌 Logo 应用领域
安森美 - ONSEMI /
页数 文件大小 规格书
12页 119K
描述
IC,COUNTER,UP,4-BIT BINARY,ACT-CMOS,SOP,16PIN,PLASTIC

MC74ACT161ML2 数据手册

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The MC74AC161/74ACT161 and MC74AC163/74ACT163 are  
high–speed synchronous modulo–16 binary counters. They are  
synchronously presettable for application in programmable dividers  
and have two types of Count Enable inputs plus a Terminal Count  
output for versatility in forming synchronous multistage counters.  
The MC74AC161/74ACT161 has an asynchronous Master Reset  
input that overrides all other inputs and forces the outputs LOW. The  
MC74AC163/74ACT163 has a Synchronous Reset input that  
overrides counting and parallel loading and allows the outputs to be  
simultaneously reset on the rising edge of the clock.  
http://onsemi.com  
DIP–16  
N SUFFIX  
CASE 648  
16  
1
Synchronous Counting and Loading  
High–Speed Synchronous Expansion  
Typical Count Rate of 125 MHz  
SO–16  
D SUFFIX  
CASE 751B  
16  
1
Outputs Source/Sink 24 mA  
ACT161 and ACT163 Have TTL Compatible Inputs  
TSSOP–16  
DT SUFFIX  
CASE 948F  
16  
ꢉꢉ  
1
EIAJ–16  
M SUFFIX  
CASE 966  
16  
1
Figure 1. Pinout: 16–Lead Packages Conductors  
ORDERING INFORMATION  
(Top View)  
See detailed ordering and shipping information in the package  
dimensions section on page 164 of this data sheet.  
PIN ASSIGNMENT  
PIN  
CEP  
CET  
CP  
FUNCTION  
Count Enable Parallel Input  
Count Enable Trickle Input  
Clock Pulse Input  
DEVICE MARKING INFORMATION  
See general marking information in the device marking  
section on page 163 of this data sheet.  
MR  
SR  
(161) Asynchronous Master Reset Input  
(163) Synchronous Reset Input  
Parallel Data Inputs  
P –P  
0
3
PE  
Parallel Enable Input  
Q –Q  
0
Flip–Flop Outputs  
3
TC  
Terminal Count Output  
Semiconductor Components Industries, LLC, 2001  
153  
Publication Order Number:  
May, 2001 – Rev. 5  
MC74AC161/D  

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