參數(shù)資料
型號(hào): SN74HC393DB
廠商: Texas Instruments, Inc.
元件分類: 通用總線功能
英文描述: DUAL 4-BIT BINARY COUNTERS
中文描述: 雙4位二進(jìn)制計(jì)數(shù)器
文件頁數(shù): 2/17頁
文件大?。?/td> 542K
代理商: SN74HC393DB
SN54HC393, SN74HC393
DUAL 4-BIT BINARY COUNTERS
SCLS143D – DECEMBER 1982 – REVISED JULY 2003
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
FUNCTION TABLE COUNT SEQUENCE
(each counter)
COUNT
OUTPUTS
QC
L
QD
L
QB
L
QA
L
0
1
L
L
L
H
2
L
L
H
L
3
L
L
H
H
4
L
H
L
L
5
L
H
L
H
6
L
H
H
L
7
L
H
H
H
8
H
L
L
L
9
H
L
L
H
10
H
L
H
L
11
H
L
H
H
12
H
H
L
L
13
H
H
L
H
14
H
H
H
L
15
H
H
H
H
logic diagram, each counter (positive logic)
R
T
QA
CLR
CLK
R
T
QB
R
T
QC
R
T
QD
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