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CD74HC191M96E4 PDF预览

CD74HC191M96E4

更新时间： 2024-11-02 05:18:15
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德州仪器 - TI 计数器
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26页 614K
描述
SYNCHRONOUS UP/DOWN COUNTERS WITH DOWN/UP MODE CONTROL

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CD74HC191M96E4 数据手册

 浏览型号CD74HC191M96E4的Datasheet PDF文件第2页浏览型号CD74HC191M96E4的Datasheet PDF文件第3页浏览型号CD74HC191M96E4的Datasheet PDF文件第4页浏览型号CD74HC191M96E4的Datasheet PDF文件第5页浏览型号CD74HC191M96E4的Datasheet PDF文件第6页浏览型号CD74HC191M96E4的Datasheet PDF文件第7页 
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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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ꢣ ꢚꢧ ꢤꢡꢡ ꢜ ꢠꢪꢤ ꢝ ꢬꢙ ꢡꢤ ꢚ ꢜꢠꢤ ꢨꢩ ꢏ ꢚ ꢟꢧ ꢧ ꢜ ꢠꢪꢤ ꢝ ꢥꢝ ꢜ ꢨꢣꢢ ꢠꢡ ꢈ ꢥꢝ ꢜ ꢨꢣꢢ ꢠꢙꢜ ꢚ  
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1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...26

中文翻译

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CD74HC191M96E4 替代型号

型号 品牌 替代类型 描述 数据表
CD74HC191M96 TI

完全替代

 SYNCHRONOUS UP/DOWN COUNTERS WITH DOWN/UP MODE CONTROL
CD74HC191EE4 TI

完全替代

 SYNCHRONOUS UP/DOWN COUNTERS WITH DOWN/UP MODE CONTROL
CD54HC191F3A TI

完全替代

 SYNCHRONOUS UP/DOWN COUNTERS WITH DOWN/UP MODE CONTROL

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