# CD4017CMT

**HGSEMI** · Counters, Dividers · TSSOP-16

CD4017CMT from HGSEMI, in a TSSOP-16. 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 | Q5 | output | Decoded output; high in selected counter states. |
| 2 | Q1 | output | Decoded output; high in selected counter states. |
| 3 | Q0 | output | Decoded output; high in selected counter states and on reset. |
| 4 | Q2 | output | Decoded output; high in selected counter states. |
| 5 | Q6 | output | Decoded output; high in selected counter states. |
| 6 | Q7 | output | Decoded output; high in selected counter states. |
| 7 | Q3 | output | Decoded output; high in selected counter states. |
| 8 | VSS | power_in | Ground; negative power supply reference. |
| 9 | Q8 | output | Decoded output; high in selected counter states. |
| 10 | Q4 | output | Decoded output; high in selected counter states. |
| 11 | Q9 | output | Decoded output; high in selected counter states. |
| 12 | CARRY OUT | output | Carry output; active in decade counting operation. |
| 13 | CLOCK INHIBIT | input | Inhibit input, active high; prevents counting when high. |
| 14 | CLOCK | input | Clock input with Schmitt trigger; rising edge advances counter when inhibit is low. |
| 15 | RESET | input | Asynchronous reset input, active high; sets Q0 high and all others low. |
| 16 | VDD | power_in | Positive power supply; 3V to 18V rated operating range. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | HGSEMI |
| Package | TSSOP-16 |
| Category | Logic |
| Pins | 16 |

## CAD (KiCad official)

- Symbol: `CD4017CMT`
- Footprint: `Package_SO:TSSOP-16_4.4x5mm_P0.65mm`
- 3D model: TSSOP-16 (KiCad packages3D, STEP)
- 3D model files: `cd4017cmt-etched.step` / `cd4017cmt-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cd4017cmt.step` / `cd4017cmt.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [HGSEMI datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590920592092704768) (16 pp, sha256 `d387e0fc47796f5e`, retrieved 2026-09-21, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **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/cd4017cmt-datasheet.pdf)