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CD74ACT191M PDF预览

CD74ACT191M

更新时间： 2024-09-15 23:00:15
品牌 Logo 应用领域
德州仪器 - TI 计数器逻辑集成电路光电二极管
页数 文件大小 规格书
10页 53K
描述
Presettable Synchronous 4-Bit Binary Up/Down Counter

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中文翻译

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CD74ACT191M 技术参数

是否无铅： 含铅是否Rohs认证： 不符合
生命周期：Obsolete零件包装代码：SOIC
包装说明：SOP, SOP16,.25针数：16
Reach Compliance Code：not_compliantHTS代码：8542.39.00.01
风险等级：5.82其他特性：TCO OUTPUT
计数方向：BIDIRECTIONAL系列：ACT
JESD-30 代码：R-PDSO-G16长度：9.9 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：60000000 Hz
最大I（ol）：0.024 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：SOP封装等效代码：SOP16,.25
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
峰值回流温度（摄氏度）：NOT SPECIFIED传播延迟（tpd）：14.5 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)：5.5 V
最小供电电压 (Vsup)：4.5 V标称供电电压 (Vsup)：5 V
表面贴装：YES技术：CMOS
温度等级：MILITARY端子形式：GULL WING
端子节距：1.27 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最小 fmax：68 MHz
Base Number Matches：1

CD74ACT191M 数据手册

 浏览型号CD74ACT191M的Datasheet PDF文件第2页浏览型号CD74ACT191M的Datasheet PDF文件第3页浏览型号CD74ACT191M的Datasheet PDF文件第4页浏览型号CD74ACT191M的Datasheet PDF文件第5页浏览型号CD74ACT191M的Datasheet PDF文件第6页浏览型号CD74ACT191M的Datasheet PDF文件第7页 
CD74AC191,  
CD74ACT191  
Data sheet acquired from Harris Semiconductor  
SCHS243  
Presettable Synchronous 4-Bit Binary  
Up/Down Counter  
October 1998  
Features  
Description  
• Buffered Inputs  
The CD74AC191 and CD74ACT191 are asynchronously  
presettable binary up/down synchronous counters that utilize  
the Harris Advanced CMOS Logic technology. Presetting the  
counter to the number on preset data inputs (P0-P3) is  
accomplished by setting LOW the asynchronous parallel  
load input (PL). Counting occurs when PL is HIGH, Count  
Enable (CE) is LOW, and the Up/Down (U/D) input is either  
LOW for up-counting or HIGH for down-counting. The  
counter is incremented or decremented synchronously with  
the LOW-to-HIGH transition of the clock.  
• Typical Propagation Delay  
o
- 12.8ns at V  
= 5V, T = 25 C, C = 50pF  
A L  
CC  
• Exceeds 2kV ESD Protection MIL-STD-883, Method  
3015  
• SCR-Latchup-Resistant CMOS Process and Circuit  
Design  
• Speed of Bipolar FAST™/AS/S with Significantly  
Reduced Power Consumption  
When an overflow or underflow of the counter occurs, the  
Terminal Count (TC) output, which is LOW during counting,  
goes HIGH and remains HIGH for one clock cycle. This out-  
put can be used for look-ahead carry in high-speed cascad-  
ing (see Figure 12). The TC output also initiates the Ripple  
Clock (RC) output which, normally HIGH, goes LOW and  
remains LOW for the low-level cascaded using the Ripple  
Count output.  
• Balanced Propagation Delays  
• AC Types Feature 1.5V to 5.5V Operation and  
Balanced Noise Immunity at 30% of the Supply  
• ±24mA Output Drive Current  
- Fanout to 15 FAST™ ICs  
- Drives 50Ω Transmission Lines  
Ordering Information  
Pinout  
PART  
NUMBER  
TEMP.  
RANGE ( C)  
PKG.  
NO.  
CD74AC191, CD74ACT191  
(PDIP, SOIC)  
o
PACKAGE  
TOP VIEW  
o
CD74AC191E  
CD74ACT191E  
CD74AC191M  
0 to 70 C, -40 to 85, 16 Ld PDIP  
-55 to 125  
E16.3  
o
P1  
Q1  
1
2
3
4
5
6
7
8
16 V  
CC  
0 to 70 C, -40 to 85, 16 Ld PDIP  
E16.3  
-55 to 125  
15 P0  
14 CP  
13 RC  
12 TC  
11 PL  
10 P2  
o
0 to 70 C, -40 to 85, 16 Ld SOIC  
M16.15  
M16.15  
Q0  
-55 to 125  
CE  
o
CD74ACT191M 0 to 70 C, -40 to 85, 16 Ld SOIC  
-55 to 125  
U/D  
Q2  
NOTES:  
Q3  
1. When ordering, use the entire part number. Add the suffix 96 to  
obtain the variant in the tape and reel.  
9
P3  
GND  
2. Wafer and die for this part number is available which meets all elec-  
trical specifications. Please contact your local sales office or Harris  
customer service for ordering information.  
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.  
FAST™ is a Trademark of Fairchild Semiconductor.  
Copyright © Harris Corporation 1998  
File Number 1911.1  
1
1234567...10

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