CD4040B CMOS 12-Stage Binary Ripple Counter
12-stage binary ripple counter with master reset. Advances one count on the negative-going transition of each clock pulse. Common for frequency dividers and timers.
Aliase:CD4040, HEF4040B, MC14040B, 12-Bit Binary Counter
DIP-16 Top View
16 Pins
Pinout Table16
| Pin | Signal / Name | Type | Alternative Functions |
|---|---|---|---|
| 1 | Q12 | Digital | Counter Stage 12 Output (Divide by 4096) |
| 2 | Q6 | Digital | Counter Stage 6 Output (Divide by 64) |
| 3 | Q5 | Digital | Counter Stage 5 Output (Divide by 32) |
| 4 | Q7 | Digital | Counter Stage 7 Output (Divide by 128) |
| 5 | Q4 | Digital | Counter Stage 4 Output (Divide by 16) |
| 6 | Q3 | Digital | Counter Stage 3 Output (Divide by 8) |
| 7 | Q2 | Digital | Counter Stage 2 Output (Divide by 4) |
| 8 | VSS | Ground | System Ground (0V) |
| 9 | Q1 | Digital | Counter Stage 1 Output (Divide by 2) |
| 10 | CLK | Digital | Clock Input (Active Falling Edge) |
| 11 | RESET | Digital | Master Reset (Active High Asynchronous) |
| 12 | Q9 | Digital | Counter Stage 9 Output (Divide by 512) |
| 13 | Q8 | Digital | Counter Stage 8 Output (Divide by 256) |
| 14 | Q10 | Digital | Counter Stage 10 Output (Divide by 1024) |
| 15 | Q11 | Digital | Counter Stage 11 Output (Divide by 2048) |
| 16 | VDD | Power | Positive Supply Voltage (+3V to +18V) |