产品概览
The CD74HC123M96 is a TI dual retriggerable monostable multivibrator in HC CMOS. Two independent one-shot channels with programmable pulse width set by external R-C components. Retriggerable for pulse extension. Direct clear for immediate reset. 2V-6V supply. SOIC-16 package.
主要规格
| 类型 | Dual Retriggerable Monostable Multivibrator |
| 逻辑家族 | HC (High-Speed CMOS) |
| 渠道 | 2 |
| Pulse Width | Programmable via Rext, Cext |
| Retriggerable | Yes |
| 重置 | Direct clear input |
| 电源电压 | 2V to 6V |
| 传播延迟 | 30 ns typ at 5V |
| Operating Temp | -55 to +125C |
| 包装 | SOIC-16 |
工作原理
Each monostable channel produces a pulse of duration approximately 0.45 x Rext x Cext when triggered by a rising edge on A or falling edge on B. The retriggerable feature allows the output pulse to be extended by applying a new trigger before the current pulse expires – the output remains high for one full pulse width after the last trigger. The direct clear (CLR) input immediately terminates the output pulse regardless of timing. Unused channels should have Rext and Cext connected to prevent oscillation. The pulse width stability depends on the external component tolerances.
应用
- Pulse generation
- Debounce circuits
- Delay generation
- Missing pulse detection