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参数资料
| 型号： | MM74HC190N |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 通用总线功能 |
| 英文描述： | MM54HC190/MM74HC190 Synchronous Decade Up/Down Counters with Mode Control MM54HC191/MM74HC191 Synchronous Binary Up/Down Counters with Mode Control |
| 中文描述： | HC/UH SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL DECADE COUNTER, PDIP16 |
| 封装： | PLASTIC, DIP-16 |
| 文件页数： | 7/8页 |
| 文件大小： | 202K |
| 代理商： | MM74HC190N |
Timing Diagrams
’HC190 Synchronous Decade Counters
Typical Load, Count, and Inhibit Sequences
TL/F/5322–4
Sequence:
(1) Load (preset) to BCD seven
(2) Count up to eight, nine, zero, one and two
(3) Inhibit
(4) Count down to one, zero, nine, eight, and seven
’HC191 Synchronous Binary Counters
Typical Load, Count, and Inhibit Sequence
TL/F/5322–5
Sequence:
(1) Load (preset) to binary thirteen
(2) Count up to fourteen, fifteen, zero, one, and two
(3) Inhibit
(4) Count down to one, zero, fifteen, fourteen, and thirteen
7
相关PDF资料 |
PDF描述 |
|---|---|
| MM74HC191 | MM54HC190/MM74HC190 Synchronous Decade Up/Down Counters with Mode Control MM54HC191/MM74HC191 Synchronous Binary Up/Down Counters with Mode Control |
| MM74HC191J | MM54HC190/MM74HC190 Synchronous Decade Up/Down Counters with Mode Control MM54HC191/MM74HC191 Synchronous Binary Up/Down Counters with Mode Control |
| MM74HC191N | MM54HC190/MM74HC190 Synchronous Decade Up/Down Counters with Mode Control MM54HC191/MM74HC191 Synchronous Binary Up/Down Counters with Mode Control |
| MM54HC245A | Octal TRI-STATE Transceiver |
| MM54HC253 | Dual 4-Channel TRI-STATE Multiplexer |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MM74HC191 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:MM54HC190/MM74HC190 Synchronous Decade Up/Down Counters with Mode Control MM54HC191/MM74HC191 Synchronous Binary Up/Down Counters with Mode Control |
| MM74HC191J | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述: |
| MM74HC191N | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MM74HC191WMX | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述: |
| MM74HC192 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Synchronous Decade Up/Down Counters Synchronous Binary Up/Down Counters |
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