# CD4024BM

**lingxingic** · Counters, Dividers · SOP-14

CD4024BM from lingxingic, in a SOP-14. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | CP | input | Clock input that advances counter state on each falling edge when MR is low. |
| 2 | MR | input | Master reset active-high input that asynchronously resets all counter outputs to low. |
| 3 | O6 | output | Buffered parallel output of the 6th stage (Q6) of the 7-stage binary ripple counter. |
| 4 | O5 | output | Buffered parallel output of the 5th stage (Q5) of the 7-stage binary ripple counter. |
| 5 | O4 | output | Buffered parallel output of the 4th stage (Q4) of the 7-stage binary ripple counter. |
| 6 | O3 | output | Buffered parallel output of the 3rd stage (Q3) of the 7-stage binary ripple counter. |
| 7 | VSS | power_in | Ground supply voltage (0V reference point). |
| 8 | NC | unconnected | Not connected to internal circuitry. |
| 9 | O2 | output | Buffered parallel output of the 2nd stage (Q2) of the 7-stage binary ripple counter. |
| 10 | NC | unconnected | Not connected to internal circuitry. |
| 11 | O1 | output | Buffered parallel output of the 1st stage (Q1) of the 7-stage binary ripple counter. |
| 12 | O0 | output | Buffered parallel output of the 0th stage (Q0) of the 7-stage binary ripple counter. |
| 13 | NC | unconnected | Not connected to internal circuitry. |
| 14 | VDD | power_in | Positive supply voltage with recommended operating range of 3V to 15V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | lingxingic |
| Package | SOP-14 |
| Category | Logic |
| Pins | 14 |

## CAD (KiCad official)

- Symbol: `CD4024BM`
- Footprint: `Package_SO:SOIC-14_3.9x8.7mm_P1.27mm`
- 3D model: SOP-14 (KiCad packages3D, STEP)
- 3D model files: `cd4024bm-etched.step` / `cd4024bm-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cd4024bm.step` / `cd4024bm.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [lingxingic datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603322875881943040) (14 pp, sha256 `a25e82273215eb79`, retrieved 2026-09-18, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-4-6` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/cd4024bm-datasheet.pdf)