參數(shù)資料
型號(hào): HD74HC190
廠商: Hitachi,Ltd.
英文描述: Octal Buffers/Drivers With 3-State Outputs 20-CDIP -55 to 125
中文描述: 同步向上/向下十年,4 -位二進(jìn)制計(jì)數(shù)器(單時(shí)鐘線)
文件頁(yè)數(shù): 4/13頁(yè)
文件大小: 75K
代理商: HD74HC190
HD74HC190/HD74HC191
4
HD74HC191
Illustrated below is the following sequence:
1. Load (preset) to binary thirteen.
2. Count up to fourteen, fifteen (maximum), zero, one and two.
3. Inhibit
4. Count down to one, zero (minimum), fifteen, fourteen and thirteen.
Load
A
Data
Inputs
B
C
D
Clock
Down/Up
Enable G
Q
A
Q
B
Q
C
Q
D
Max/Min
Ripple
Clock
13
Load
14
15
0
1
2
2
1
0
15
14 13
Count Up
Inhibit
Count Down
相關(guān)PDF資料
PDF描述
HD74HC191 Synchronous Up/Down Decade,4-bit Binary Counter(Single Clock Line)
HD74HC192 Synchronous Up/Down Decade,4-bit Binary Counter(Dual Clock Line)
HD74HC193 Synchronous Up/Down Decade,4-bit Binary Counter(Dual Clock Line)
HD74HC194 4-bit Bidirectional Universal Shift Register
HD74HC195 4-bit Parallel-Access Shift Register
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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