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74AC161 PDF预览

74AC161

更新时间: 2024-02-11 06:49:44
品牌 Logo 应用领域
意法半导体 - STMICROELECTRONICS 计数器
页数 文件大小 规格书
12页 103K
描述
SYNCHRONOUS PRESETTABLE 4-BIT COUNTER

74AC161 技术参数

是否Rohs认证: 符合生命周期:Obsolete
零件包装代码:TSSOP包装说明:TSSOP-16
针数:16Reach Compliance Code:unknown
HTS代码:8542.39.00.01风险等级:5.58
Is Samacsys:N计数方向:UP
系列:ACJESD-30 代码:R-PDSO-G16
JESD-609代码:e4长度:5 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:60000000 Hz
最大I(ol):0.012 A工作模式:SYNCHRONOUS
湿度敏感等级:1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:TSSOP
封装等效代码:TSSOP16,.25封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH包装方法:TAPE AND REEL
峰值回流温度(摄氏度):260电源:3.3/5 V
传播延迟(tpd):13 ns认证状态:Not Qualified
座面最大高度:1.2 mm子类别:Counters
最大供电电压 (Vsup):6 V最小供电电压 (Vsup):2 V
标称供电电压 (Vsup):3.3 V表面贴装:YES
技术:CMOS温度等级:MILITARY
端子面层:Nickel/Palladium/Gold (Ni/Pd/Au)端子形式:GULL WING
端子节距:0.65 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:4.4 mm最小 fmax:95 MHz
Base Number Matches:1

74AC161 数据手册

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74AC161  
SYNCHRONOUS PRESETTABLE 4-BIT COUNTER  
HIGH SPEED:  
MAX =125MHz (TYP.)atVCC =5V  
LOW POWER DISSIPATION:  
ICC =8 µA (MAX.) at TA =25 oC  
HIGH NOISEIMMUNITY:  
f
VNIH = VNIL =28% VCC (MIN.)  
B
M
50TRANSMISSIONLINEDRIVING  
CAPABILITY  
SYMMETRICAL OUTPUT IMPEDANCE:  
|IOH| = IOL = 24 mA (MIN)  
BALANCEDPROPAGATIONDELAYS:  
tPLH tPHL  
OPERATING VOLTAGERANGE:  
(Plastic Package)  
(Micro Package)  
ORDER CODES :  
74AC161B  
74AC161M  
reset, parallel load, count-up and hold. Four  
control inputs, Master Reset (CLEAR), Parallel  
Enable Input (LOAD), Count Enable Input (PE)  
and Count Enable Carry Input (TE), determine  
the mode of operation as shown in the Truth  
Table. A LOW signal on CLEAR overrides  
counting and parallel loading and sets all outputs  
on LOW state. A LOW signal on LOAD overrides  
counting and allows information on Parallel Data  
Qn inputs to be loaded into the flip-flops on the  
next rising edge of CLOCK. With LOAD and  
CLEAR, PE and TE permit counting when both  
are HIGH. Conversely, a LOW signal on either  
PE and TE inhibits counting.  
VCC (OPR)= 2V to 6V  
PIN AND FUNCTION COMPATIBLEWITH  
74 SERIES161  
IMPROVED LATCH-UP IMMUNITY  
DESCRIPTION  
The AC161  
is  
a
high-speed CMOS  
SYNCRONOUS PRESETTABLE COUNTER  
fabricated with sub-micron silicon gate and  
double-layer metal wiring C2MOS technology.It is  
ideal for low power applications mantaining high  
speed operation similar to eqivalent Bipolar  
Schottky TTL. It is a 4 bit binary counter with  
AsynchronousClear.  
All inputs and outputs are equipped with  
protection circuits against static discharge, giving  
them 2KV ESD immunity and transient excess  
voltage.  
The circuit have four fundamental modes of  
operation, in order of preference: synchronous  
PIN CONNECTION AND IEC LOGIC SYMBOLS  
1/12  
December 1998  

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