# CMT2150L

**HopeRF Micro-electronics** · RF Transceiver ICs · SOIC-8

CMT2150L from HopeRF Micro-electronics, in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | LED | bidirectional | LED driver pin, also serves as the enable pin for the programming port function. |
| 2 | VDD | power_in | Power supply voltage input. |
| 3 | GND | power_in | Ground. |
| 4 | RFO | output | RF output. |
| 5 | K3 | input | Key 3 input, also the DATA pin of the programming port used for EEPROM programming. |
| 6 | K2 | input | Key 2 input, also the CLK pin of the programming port used for EEPROM programming. |
| 7 | K1 | input | Key 1 input, also the CSB pin of the programming port used for EEPROM programming. |
| 8 | XTAL | input | Crystal pin: connect a crystal of the corresponding frequency with 15 pF load to GND, or connect to a suitable external clock source. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | HopeRF Micro-electronics |
| Package | SOIC-8 |
| Category | RF & Radio |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `CMT2150L`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `cmt2150l-etched.step` / `cmt2150l-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cmt2150l.step` / `cmt2150l.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [HopeRF Micro-electronics datasheet](docs/cmt2150l-datasheet.pdf) (3 pp, sha256 `fd960e9921adc67d`, retrieved 2026-10-22, 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 0.3`, primary `claude-sonnet-5-5` (text), consensus `claude-sonnet-5-5` (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/cmt2150l-datasheet.pdf)