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參數(shù)資料
| 型號： | 74ALS191 |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 通用總線功能 |
| 英文描述： | SYNCHRONOUS 4-BIT UP/DOWN BINARY COUNTERS |
| 中文描述： | 同步4位向上/向下二進制計數(shù)器 |
| 文件頁數(shù)： | 4/8頁 |
| 文件大小： | 133K |
| 代理商： | 74ALS191 |
SN54ALS191A, SN74ALS191A
SYNCHRONOUS 4-BIT UP/DOWN BINARY COUNTERS
SDAS210C – DECEMBER 1982 – REVISED JULY 1996
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
typical load, count, and inhibit sequences
The following sequence is illustrated below:
1.
Load (preset) to binary 13
2.
Count up to 14, 15 (maximum), 0, 1, and 2
3.
Inhibit
4.
Count down to 1, 0 (minimum), 15, 14, and 13
2
A
B
C
D
CLK
D/U
MAX/MIN
QA
QD
QC
QB
Load
Count Up
Inhibit
Count Down
13
14
15
0
1
2
2
1
0
15
14
13
Data
Inputs
RCO
CTEN
LOAD
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相關(guān)代理商/技術(shù)參數(shù) |
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| 74ALS193N | 制造商:Texas Instruments 功能描述: |
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| 74ALS20A | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Dual 4-Input NAND gate |
| 74ALS20AD | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Dual 4-Input NAND gate |
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