CD4518 Dual BCD Up Counter
CD4518 Dual BCD Up Counter
1. Function: Dual BCD Up Counter (0-9)
2. Number of Counters: 2 independent
3. Count Type: Binary-Coded Decimal
4. Supply Voltage: 3V to 18V DC
5. Package Type: 16-pin DIP
6. Logic Family: 40xx-series CMOS
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Description
The CD4518 is a dual BCD up-counter from the 40xx-series CMOS family, containing two independent synchronous BCD counters. Each counter counts in binary-coded decimal from 0 to 9, generating a carry output upon reaching the terminal count. The synchronous design ensures stable counting across the full range, with buffered outputs for driving external logic.
Operating from 3V to 18V, the CD4518 features a clock-enable input for each counter and a reset input for asynchronous clearing to zero. The device can be cascaded to create multi-digit BCD counters, making it suitable for digital display applications, frequency dividers, and event counters.
- Dual independent BCD up-counters (0 to 9)
- Synchronous counting with stable timing
- Carry output for cascading multi-digit counters
- Clock enable and reset inputs per counter
- Wide supply voltage: 3V to 18V DC
- Low CMOS power consumption
- Standard 16-pin DIP package
- Ideal for digital display and counting systems
Specification
Specification
| WeightWeight | 2 g |
|---|---|
| Dimensions | 2 × 0,6 × 0,5 cm |
| Function | Dual BCD Up Counter |
| Number of Counters | 2 independent |
| Count Direction | Up (0 to 9 BCD) |
| Output | BCD with carry |
| Supply Voltage | 3V to 18V DC |
| Package Type | 16-pin DIP |
| Logic Family | 40xx-series CMOS |
| Features | Synchronous counting, clock enable, reset |
