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CD74HCT191H PDF预览

CD74HCT191H

更新时间： 2024-09-16 19:37:39
品牌 Logo 应用领域
德州仪器 - TI /
页数 文件大小 规格书
32页 1019K
描述
HCT SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, UUC16, DIE

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CD74HCT191H 技术参数

生命周期：Obsolete零件包装代码：DIE
包装说明：DIE,针数：16
Reach Compliance Code：unknownHTS代码：8542.39.00.01
风险等级：5.69其他特性：TCO OUTPUT
计数方向：BIDIRECTIONAL系列：HCT
JESD-30 代码：R-XUUC-N16负载/预设输入：YES
逻辑集成电路类型：BINARY COUNTER工作模式：SYNCHRONOUS
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封装主体材料：UNSPECIFIED
封装代码：DIE封装形状：RECTANGULAR
封装形式：UNCASED CHIP传播延迟（tpd）：44 ns
认证状态：Not Qualified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：INDUSTRIAL端子形式：NO LEAD
端子位置：UPPER触发器类型：POSITIVE EDGE
最小 fmax：25 MHzBase Number Matches：1

CD74HCT191H 数据手册

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SCHS275E − MARCH 2002 − REVISED OCTOBER 2003  
CD54HC190, 191; CD54HCT191 . . . F PACKAGE  
CD74HC190 . . . E, NS, OR PW PACKAGE  
CD74HC191, CD74HCT191 . . . E OR M PACKAGE  
(TOP VIEW)  
D
D
D
D
D
D
D
D
D
2-V to 6-V V  
Operation (’HC190, 191)  
CC  
4.5-V to 5.5-V V  
Operation (’HCT191)  
CC  
Wide Operating Temperature Range of  
−55°C to 125°C  
Synchronous Counting and Asynchronous  
Loading  
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
B
V
A
CC  
Q
Q
B
A
CLK  
RCO  
MAX/MIN  
LOAD  
C
Two Outputs for n-Bit Cascading  
CTEN  
D/U  
Look-Ahead Carry for High-Speed Counting  
Q
Balanced Propagation Delays and  
Transition Times  
C
Q
D
GND  
D
Standard Outputs Drive Up To 15 LS-TTL  
Loads  
Significant Power Reduction Compared to  
LS-TTL Logic ICs  
description/ordering information  
The CD54/74HC190 are asynchronously presettable BCD decade counters, whereas the CD54/74HC191 and  
CD54/74HCT191 are asynchronously presettable binary counters.  
Presetting the counter to the number on preset data inputs (A−D) is accomplished by a low asynchronous  
parallel load (LOAD) input. Counting occurs when LOAD is high, count enable (CTEN) is low, and the down/up  
(D/U) input is either high for down counting or low for up counting. The counter is decremented or incremented  
synchronously with the low-to-high transition of the clock.  
ORDERING INFORMATION  
ORDERABLE  
PART NUMBER  
TOP-SIDE  
MARKING  
†
PACKAGE  
T
A
CD74HC190E  
CD74HC190E  
CD74HC191E  
CD74HCT191E  
CD74HC191E  
PDIP − E  
SOIC − M  
Tube of 25  
CD74HCT191E  
CD74HC191M  
Tube of 40  
Reel of 2500  
Reel of 250  
Tube of 40  
Reel of 2000  
Tube of 90  
Reel of 2000  
Reel of 250  
CD74HC191M96  
CD74HC191MT  
CD74HCT191M  
CD74HC190NSR  
CD74HC190PW  
CD74HC190PWR  
CD74HC190PWT  
CD54HC190F3A  
CD54HC191F3A  
HC191M  
HCT191M  
HC190M  
−55°C to 125°C  
SOP − NS  
TSSOP − PW  
HJ190  
CD54HC190F3A  
CD54HC191F3A  
CD54HCT191F3A  
CDIP − F  
Tube of 25  
CD54HCT191F3A  
†
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.  
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Copyright 2003, Texas Instruments Incorporated  
ꢏ ꢚ ꢥ ꢝ ꢜꢨ ꢣꢢ ꢠꢡ ꢢꢜ ꢞꢥ ꢧꢙ ꢟꢚ ꢠ ꢠꢜ ꢖꢕ ꢗꢯ ꢑꢎ ꢰ ꢯꢱꢲꢂ ꢱꢂꢈ ꢟꢧꢧ ꢥꢟ ꢝ ꢟ ꢞꢤ ꢠꢤꢝ ꢡ ꢟ ꢝ ꢤ ꢠꢤ ꢡꢠꢤ ꢨ  
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1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...32

中文翻译

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