产品概览
The CD4040BE from Texas Instruments is a 12-stage binary ripple counter with all 12 outputs accessible — unlike the CD4060, it has no oscillator but provides outputs from Q1 through Q12 for maximum flexibility in a 16-pin PDIP package.
主要规格
| 功能 | 12-stage binary ripple counter |
| Technology | CD4000B CMOS |
| 电源电压 | 3V to 18V |
| Counter Stages | 12 (all outputs accessible: Q1-Q12) |
| Max Clock Frequency | 8MHz @ VDD=10V |
| Trigger | Negative edge on CLK |
| 重置 | Asynchronous, active HIGH (MR) |
| 传播延迟 | 200ns typical @ VDD=10V |
| 工作温度 | -55°C to +125°C |
| 包装 | PDIP-16 (19.3 x 9.4mm) |
特点
- All 12 counter outputs accessible (Q1-Q12)
- Division ratios: 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096
- Schmitt trigger clock input
- Asynchronous master reset
- No oscillator (external clock required)
- 3V-18V wide supply range
应用
- Frequency division (÷2 to ÷4096)
- Time delay generation
- Binary counting
- Address generation