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CD74AC161EE4 PDF预览

CD74AC161EE4

更新时间: 2024-01-24 05:13:34
品牌 Logo 应用领域
德州仪器 - TI 计数器触发器逻辑集成电路光电二极管输出元件
页数 文件大小 规格书
18页 553K
描述
4-BIT SYNCHRONOUS BINARY COUNTERS

CD74AC161EE4 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Obsolete零件包装代码:DIP
包装说明:ROHS COMPLIANT, PLASTIC, DIP-16针数:16
Reach Compliance Code:unknownHTS代码:8542.39.00.01
风险等级:5.16Is Samacsys:N
其他特性:TCO OUTPUT计数方向:UP
系列:ACJESD-30 代码:R-PDIP-T16
JESD-609代码:e4长度:19.305 mm
负载电容(CL):50 pF负载/预设输入:YES
逻辑集成电路类型:BINARY COUNTER最大频率@ Nom-Sup:64000000 Hz
最大I(ol):0.012 A工作模式:SYNCHRONOUS
位数:4功能数量:1
端子数量:16最高工作温度:125 °C
最低工作温度:-55 °C封装主体材料:PLASTIC/EPOXY
封装代码:DIP封装等效代码:DIP16,.3
封装形状:RECTANGULAR封装形式:IN-LINE
包装方法:TUBE峰值回流温度(摄氏度):NOT SPECIFIED
电源:3.3/5 V传播延迟(tpd):207 ns
认证状态:Not Qualified座面最大高度:5.08 mm
子类别:Counters最大供电电压 (Vsup):5.5 V
最小供电电压 (Vsup):1.5 V标称供电电压 (Vsup):3.3 V
表面贴装:NO技术:CMOS
温度等级:MILITARY端子面层:Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式:THROUGH-HOLE端子节距:2.54 mm
端子位置:DUAL处于峰值回流温度下的最长时间:NOT SPECIFIED
触发器类型:POSITIVE EDGE宽度:7.62 mm
最小 fmax:90 MHzBase Number Matches:1

CD74AC161EE4 数据手册

 浏览型号CD74AC161EE4的Datasheet PDF文件第2页浏览型号CD74AC161EE4的Datasheet PDF文件第3页浏览型号CD74AC161EE4的Datasheet PDF文件第4页浏览型号CD74AC161EE4的Datasheet PDF文件第5页浏览型号CD74AC161EE4的Datasheet PDF文件第6页浏览型号CD74AC161EE4的Datasheet PDF文件第7页 
CD54AC161, CD74AC161  
4-BIT SYNCHRONOUS BINARY COUNTERS  
SCHS239C – SEPTEMBER 1998 – REVISED MARCH 2003  
CD54AC161 . . . F PACKAGE  
CD74AC161 . . . E OR M PACKAGE  
(TOP VIEW)  
Internal Look-Ahead for Fast Counting  
Carry Output for n-Bit Cascading  
Synchronous Counting  
CLR  
CLK  
A
V
CC  
RCO  
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
Synchronously Programmable  
SCR-Latchup-Resistant CMOS Process and  
Circuit Design  
Q
A
B
Q
B
Exceeds 2-kV ESD Protection per  
MIL-STD-883, Method 3015  
C
Q
C
D
Q
D
ENP  
GND  
ENT  
LOAD  
description/ordering information  
The ’AC161 devices are 4-bit binary counters.  
These synchronous, presettable counters feature  
an internal carry look-ahead for application in  
high-speed counting These devices are fully programmable; that is, they can be preset to any number between  
0 and 9 or 15. Presetting is synchronous; therefore, setting up a low level at the load input disables the counter  
and causes the outputs to agree with the setup data after the next clock pulse, regardless of the levels of the  
enable inputs.  
The clear function is asynchronous. A low level at the clear (CLR) input sets all four of the flip-flop outputs low,  
regardless of the levels of the CLK, load (LOAD), or enable inputs.  
The carry look-ahead circuitry provides for cascading counters for n-bit synchronous applications without  
additional gating. Instrumental in accomplishing this function are ENP, ENT, and a ripple-carry output (RCO).  
Both ENP and ENT must be high to count, and ENT is fed forward to enable RCO. Enabling RCO produces a  
high-level pulse while the count is maximum (9 or 15, with Q high). This high-level overflow ripple-carry pulse  
A
can be used to enable successive cascaded stages. Transitions at ENP or ENT are allowed, regardless of the  
level of CLK.  
The counters feature a fully independent clock circuit. Changes at control inputs (ENP, ENT, or LOAD) that  
modify the operating mode have no effect on the contents of the counter until clocking occurs. The function of  
the counter (whether enabled, disabled, loading, or counting) is dictated solely by the conditions meeting the  
stable setup and hold times.  
ORDERING INFORMATION  
ORDERABLE  
PART NUMBER  
TOP-SIDE  
MARKING  
PACKAGE  
T
A
PDIP – E  
Tube  
Tube  
CD74AC161E  
CD74AC161E  
CD74AC161M  
CD74AC161M96  
CD54AC161F3A  
–55°C to 125°C  
SOIC – M  
CDIP – F  
AC161M  
Tape and reel  
Tube  
CD54AC161F3A  
Package drawings, standard packing quantities, thermal data, symbolization, and PCB  
design guidelines are available at www.ti.com/sc/package.  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
Copyright 2003, Texas Instruments Incorporated  
On products compliant to MIL-PRF-38535, all parameters are tested  
unless otherwise noted. On all other products, production  
processing does not necessarily include testing of all parameters.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of Texas Instruments  
standard warranty. Production processing does not necessarily include  
testing of all parameters.  
1
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  

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