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參數(shù)資料
| 型號： | HD74HC191 |
| 廠商： | Hitachi,Ltd. |
| 元件分類： | 通用總線功能 |
| 英文描述： | Synchronous Up/Down Decade,4-bit Binary Counter(Single Clock Line) |
| 中文描述： | 同步向上/向下十年,4 -位二進制計數(shù)器（單時鐘線） |
| 文件頁數(shù)： | 3/13頁 |
| 文件大小： | 75K |
| 代理商： | HD74HC191 |
HD74HC190/HD74HC191
3
Timing Chart
HD74HC190
Illustrated below is the following sequence:
1. Load (preset) to BCD seven.
2. Count up to eight, nine (maximum), zero, one and two.
3. Inhibit
4. Count down to one, zero (minimum), nine, eight and seven.
Load
A
B
C
D
Clock
Down/Up
Enable G
Q
A
Q
B
Q
C
Q
D
Max/Min
Ripple
Clock
7
Load
8
9
0
1 2
2 2 1
0
9
8
7
Count Up
Inhibit
Count Down
相關PDF資料 |
PDF描述 |
|---|---|
| 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 |
| HD74HC1G14 | Inverter with Schmitt?trigger Input |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| HD74HC192FP | 制造商:Renesas Electronics 功能描述:74HC 4-Bit Binary Up / Down Counter with Preset 制造商:Renesas Electronics 功能描述:74HC 4-Bit Binary Up / Down Counter with Preset Bulk |
| HD74HC192FP-E | 制造商:Renesas Electronics 功能描述:74HC 4-Bit Binary Up / Down Counter with Preset |
| HD74HC192P | 制造商:Renesas Electronics 功能描述:74HC 4-Bit Binary Up / Down Counter with Preset Bulk |
| HD74HC194P | 制造商:Renesas Electronics 功能描述:74HC 4-Bit Bidirectional Universal Shift Register 制造商:Renesas Electronics 功能描述:74HC 4-Bit Bidirectional Universal Shift Register Bulk |
| HD74HC195P | 制造商:Renesas Electronics 功能描述:74HC Bulk |
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