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CD4040 12-bit Counter
CD4040B
Texas Instrumentsic logic
The CD4040B is a CMOS 12-stage ripple-carry binary counter/divider. It advances on each negative clock transition and provides 12 buffered binary outputs, with an asynchronous active-high reset.
In stock
Specifications
2- Operating Temperature Range
- -55 to 125 C
- Package Types
- PDIP, CDIP, SOIC, SOP, TSSOP
Pinout
16Low source legibility.The original manufacturer datasheet for this part was difficult to read, so this pinout may be incomplete or imperfect. Always confirm against the specific manufacturer’s datasheet before wiring.
| Pin | Name | Functions | Notes |
|---|---|---|---|
| 1 | Q12 | GPIO | Counter output, stage 12 |
| 2 | Q6 | GPIO | Counter output, stage 6 |
| 3 | Q5 | GPIO | Counter output, stage 5 |
| 4 | Q7 | GPIO | Counter output, stage 7 |
| 5 | Q4 | GPIO | Counter output, stage 4 |
| 6 | Q3 | GPIO | Counter output, stage 3 |
| 7 | Q2 | GPIO | Counter output, stage 2 |
| 8 | VSS | POWERGND | Ground |
| 9 | Q1 | GPIO | Counter output, stage 1 |
| 10 | CLOCK | GPIO | Clock input (advances on negative transition) |
| 11 | RESET | GPIO | Reset input (active high) |
| 12 | Q9 | GPIO | Counter output, stage 9 |
| 13 | Q8 | GPIO | Counter output, stage 8 |
| 14 | Q10 | GPIO | Counter output, stage 10 |
| 15 | Q11 | GPIO | Counter output, stage 11 |
| 16 | VDD | POWER | Positive supply voltage |
Interactive pinout
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CD4040B
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