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CY74FCT191CTQCTG4 PDF预览

CY74FCT191CTQCTG4

更新时间: 2024-02-02 17:47:10
品牌 Logo 应用领域
德州仪器 - TI 光电二极管输出元件逻辑集成电路触发器
页数 文件大小 规格书
14页 353K
描述
Presettable Synchronous 4-Bit Up/Down Binary Counters 16-SSOP -40 to 85

CY74FCT191CTQCTG4 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:SOIC
包装说明:SSOP, SSOP16,.25针数:16
Reach Compliance Code:unknownHTS代码:8542.39.00.01
风险等级:5.46其他特性:TCO OUTPUT
计数方向:BIDIRECTIONAL系列:FCT
JESD-30 代码:R-PDSO-G16JESD-609代码:e4
长度:4.9 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:125000000 Hz最大I(ol):0.064 A
工作模式:SYNCHRONOUS湿度敏感等级:2
位数:4功能数量:1
端子数量:16最高工作温度:85 °C
最低工作温度:-40 °C输出特性:3-STATE
封装主体材料:PLASTIC/EPOXY封装代码:SSOP
封装等效代码:SSOP16,.25封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, SHRINK PITCH包装方法:TAPE AND REEL
峰值回流温度(摄氏度):260电源:5 V
Prop。Delay @ Nom-Sup:6.2 ns传播延迟(tpd):6.2 ns
认证状态:Not Qualified座面最大高度:1.75 mm
子类别:Counters最大供电电压 (Vsup):5.25 V
最小供电电压 (Vsup):4.75 V标称供电电压 (Vsup):5 V
表面贴装:YES技术:CMOS
温度等级:INDUSTRIAL端子面层:Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式:GULL WING端子节距:0.635 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:3.9 mm
Base Number Matches:1

CY74FCT191CTQCTG4 数据手册

 浏览型号CY74FCT191CTQCTG4的Datasheet PDF文件第2页浏览型号CY74FCT191CTQCTG4的Datasheet PDF文件第3页浏览型号CY74FCT191CTQCTG4的Datasheet PDF文件第4页浏览型号CY74FCT191CTQCTG4的Datasheet PDF文件第5页浏览型号CY74FCT191CTQCTG4的Datasheet PDF文件第6页浏览型号CY74FCT191CTQCTG4的Datasheet PDF文件第7页 
CY74FCT191T  
4-BIT UP/DOWN BINARY COUNTER  
SCCS016A – MAY 1994 – REVISED SEPTEMBER 2001  
Q OR SO PACKAGE  
(TOP VIEW)  
Function, Pinout, and Drive Compatible  
With FCT and F Logic  
Reduced V  
of Equivalent FCT Functions  
(Typically = 3.3 V) Versions  
OH  
P
Q
Q
V
P
1
2
3
4
5
6
7
8
16  
15  
14  
13  
1
1
0
CC  
0
Edge-Rate Control Circuitry for  
Significantly Improved Noise  
Characteristics  
CP  
RC  
CE  
U/D  
12 TC  
I
Supports Partial-Power-Down Mode  
11  
10  
9
Q
2
Q
PL  
off  
Operation  
P
P
3
2
3
GND  
ESD Protection Exceeds JESD 22  
– 2000-V Human-Body Model (A114-A)  
– 200-V Machine Model (A115-A)  
– 1000-V Charged-Device Model (C101)  
Matched Rise and Fall Times  
64-mA Output Sink Current  
32-mA Output Source Current  
description  
The CY74FCT191T is a reversible modulo-16 binary counter, featuring synchronous counting and  
asynchronous presetting. The preset allows the CY74FCT191T to be used in programmable dividers. The count  
enable input, terminal count output, and ripple-clock output make possible a variety of methods of implementing  
multiusage counters. In the counting modes, state changes are initiated by the rising edge of the clock.  
This device is fully specified for partial-power-down applications using I . The I circuitry disables the outputs,  
off  
off  
preventing damaging current backflow through the device when it is powered down.  
PIN DESCRIPTION  
NAME  
CE  
CP  
P
DESCRIPTION  
Count enable input (active low)  
Clock pulse input (active rising edge)  
Parallel data inputs  
PL  
Asynchronous parallel load input (active low)  
Up/down count control input  
Flip-flop outputs  
U/D  
Q
RC  
TC  
Ripple clock output (active low)  
Terminal count output  
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 2001, Texas Instruments Incorporated  
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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