# CMT2210LHESR

**hoperf.com** · Others · SOP-8

CMT2210LHESR from hoperf.com, in a SOP-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 | GND | power_in | Ground pin for the receiver. |
| 2 | RFIN | input | RF signal input to the internal LNA, matched to 50 Ω with a low-cost external matching network. |
| 3 | VDD5V | power_in | Power supply input; with VDD5V and VDDL left open the supply range is 3.0-5.5 V, and with them shorted it is 2.0-3.6 V. |
| 4 | VDDL | power_out | Power output pin that is shorted to VDD5V for 2.0-3.6 V operation and left open for 3.0-5.5 V operation. |
| 5 | DATA | output | Demodulated OOK receive data output. |
| 6 | NC | unconnected | No connection; leave floating. |
| 7 | NC | unconnected | No connection; leave floating. |
| 8 | XIN | input | Crystal oscillator input, or external reference clock input through a DC-blocking capacitor at 0.3-0.7 V peak-to-peak; the crystal is 19.7029 MHz (315 MHz) or 27.1412 MHz (433.92 MHz). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | hoperf.com |
| Package | SOP-8 |
| Category | Others |
| Pins | 8 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Operating supply voltage (VDD5V and VDDL open) | VDD | 3 |  | 5.5 | V | VDD5V 与 VDDL 开路，温度范围在-40℃至+85℃ | 5 |
| Operating supply voltage (VDD5V and VDDL shorted) | VDD | 2 |  | 3.6 | V | VDD5V 与 VDDL 短路，温度范围在-40℃至+85℃ | 5 |
| Operating temperature | TOP | -40 |  | 85 | ℃ |  | 5 |
| Supply voltage (VDD5V and VDDL not shorted) | VDD | -0.3 |  | 5.5 | V | VDD5V 与 VDDL 不短接 | 5 |
| Supply voltage (VDD5V and VDDL shorted) | VDD | -0.3 |  | 3.6 | V | VDD5V 与 VDDL 短接 | 5 |
| Interface voltage | VIN | -0.3 |  |  | V | upper limit printed as VDD + 0.3 V | 5 |
| Junction temperature | TJ | -40 |  | 125 | ℃ |  | 5 |
| Storage temperature | TSTG | -50 |  | 150 | ℃ |  | 5 |
| Soldering temperature | TSDR |  |  | 255 | ℃ | 持续至少 30 秒 | 5 |
| ESD rating, human body model (HBM) | ESD HBM | -2 |  | 2 | kV | 人体模型(HBM) | 5 |
| Latch-up current |  | -100 |  | 100 | mA | @ 85 ℃ | 5 |
| Data rate | DR | 1 |  | 5 | kbps |  | 6 |
| Saturation input level | PLVL |  |  | 10 | dBm |  | 6 |
| Crystal frequency accuracy |  | -20 |  | 20 | ppm |  | 6 |
| Crystal equivalent series resistance | Rm |  |  | 60 | Ω |  | 6 |
| External reference clock amplitude (XIN, peak-to-peak) |  | 0.3 |  | 0.7 | V | 外部时钟信号的峰峰值要求；通过耦合电容驱动 XIN | 6 |

## CAD (KiCad official)

- Symbol: `CMT2210LHESR`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `cmt2210lhesr-etched.step` / `cmt2210lhesr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cmt2210lhesr.step` / `cmt2210lhesr.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [hoperf.com datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588918738111877120) (19 pp, sha256 `ccfd4e0c1e639ad6`, retrieved 2026-11-07, 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-haiku-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/cmt2210lhesr-datasheet.pdf)