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参数资料
| 型号： | SN54ALS193AFK |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 计数器 |
| 英文描述： | ALS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, CQCC20 |
| 封装： | CERAMIC, LCC-20 |
| 文件页数： | 4/8页 |
| 文件大小： | 130K |
| 代理商： | SN54ALS193AFK |
SN54ALS193A, SN74ALS193A
SYNCHRONOUS 4-BIT UP/DOWN BINARY COUNTERS
WITH DUAL CLOCK AND CLEAR
SDAS211C – DECEMBER 1982 – REVISED JULY 1996
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
typical clear, load, and count sequence
the following sequence is illustrated below:
1.
Clear outputs to zero
2.
Load (preset) to binary 13
3.
Count up to 14, 15 (carry), 0, 1, and 2
4.
Count down to 1, 0 (borrow), 15, 14, and 13
0
A
B
C
D
UP
DOWN
QA
QD
QC
QB
Count Up
Count Down
13
0
2
11
0
Data
Inputs
CLR
Data
Outputs
LOAD
CO
BO
14
15
14
13
Sequence
Illustrated
Clear
Preset
NOTES: A. Clear overrides load, data, and count inputs.
B. When counting up, count-down input must be high; when counting down, count-up input must be high.
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| SN54ALS193AJ | 制造商:Texas Instruments 功能描述: |
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| SN54ALS241AJ | 制造商:Texas Instruments 功能描述: |
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