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CMT2210LC-ESR2
Public Made by Adomby adom
HopeRF Micro electronics RF Transceiver ICs, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownCMT2210LC-ESR2
HopeRF Micro electronics · RF Transceiver ICs · SOP-8
CMT2210LC-ESR2 from HopeRF Micro electronics, 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 reference pin for the receiver. |
| 2 | VDD | power_in | Power supply input; operating supply range is 1.8 to 3.6 V, with a supply slope of no more than 1 mV/us. |
| 3 | DOUT | output | Demodulated OOK receive data output to the external MCU. |
| 4 | SDN | input | Chip shutdown control input: pulling low enables receiver operation and pulling high turns the receiver off. |
| 5 | XIN | input | Crystal oscillator input, or external reference clock input through a DC-blocking capacitor; external clock amplitude should be 0.3 to 0.7 V peak-to-peak at the XTAL pin. |
| 6 | NC | unconnected | No connection; leave floating. |
| 7 | NC | unconnected | No connection; leave floating. |
| 8 | RFIN | input | RF signal input to the chip's LNA; the LNA input is matched to 50 Ω or other antenna types with one inductor and one capacitor. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HopeRF Micro electronics |
| Package | SOP-8 |
| Category | RF And Wireless |
| 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 | VDD | 1.8 | 3.6 | V | 5 | ||
| Operating temperature | TOP | -40 | 85 | °C | 5 | ||
| Supply voltage | VDD | -0.3 | 3.6 | V | 5 | ||
| Interface voltage | VIN | -0.3 | V | max printed as VDD + 0.3 V | 5 | ||
| Junction temperature | TJ | -40 | 125 | °C | 5 | ||
| Storage temperature | TSTG | -50 | 150 | °C | 5 | ||
| Soldering temperature | TSDR | 255 | °C | duration at least 30 s | 5 | ||
| ESD HBM rating | ESD | -2 | 2 | kV | human body model (HBM) | 5 | |
| Latch-up current | -100 | 100 | mA | @ 85 °C | 5 | ||
| Data rate | DR | 1 | 5 | kbps | 6 | ||
| Maximum input signal (saturation input level) | PLVL | 10 | dBm | 6 | |||
| Blocking immunity, ±1 MHz CW interference | BI | 26 | dB | ±1 MHz, continuous-wave interference | 6 | ||
| Blocking immunity, ±2 MHz CW interference | BI | 37 | dB | ±2 MHz, continuous-wave interference | 6 | ||
| Blocking immunity, ±10 MHz CW interference | BI | 65 | dB | ±10 MHz, continuous-wave interference | 6 | ||
| Input third-order intercept point | IIP3 | -23 | dBm | two-tone test at 1 MHz and 2 MHz offset, maximum system gain setting | 6 | ||
| Sensitivity at 315 MHz | S315 | -109 | dBm | FRF = 315 MHz, DR = 3 kbps, BER = 0.1% | 6 | ||
| Sensitivity at 433.92 MHz | S433.92 | -109 | dBm | FRF = 433.92 MHz, DR = 3 kbps, BER = 0.1% | 6 | ||
| Operating current at 315 MHz | IDD315 | 3.3 | mA | FRF = 315 MHz | 6 | ||
| Operating current at 433.92 MHz | IDD433.92 | 3.8 | mA | FRF = 433.92 MHz | 6 | ||
| Sleep (shutdown) current | ISHUTDOWN | 60 | nA | 6 | |||
| Receiver bandwidth at 315 MHz | BW315 | 240 | kHz | FRF = 315 MHz | 6 | ||
| Receiver bandwidth at 433.92 MHz | BW433.92 | 330 | kHz | FRF = 433.92 MHz | 6 | ||
| Frequency synthesizer lock time | TLOCK | 150 | us | from XOSC stable start | 6 | ||
| Receiver start-up time | TSTART-UP | 3 | ms | from power-up to reception | 6 | ||
| Crystal frequency at 315 MHz | FXTAL315 | 19.7008 | MHz | FRF = 315 MHz | 6 | ||
| Crystal frequency at 433.92 MHz | FXTAL433.92 | 27.1383 | MHz | FRF = 433.92 MHz | 6 | ||
| Crystal frequency accuracy | -20 | 20 | ppm | includes initial error, crystal load, aging and temperature variation | 6 | ||
| Crystal load capacitance | CLOAD | 15 | pF | 6 | |||
| Crystal equivalent series resistance | Rm | 60 | Ω | 6 | |||
| Crystal start-up time | tXTAL | 400 | us | largely dependent on the crystal | 6 |
CAD (KiCad official)
- Symbol:
CMT2210LC-ESR2 - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
cmt2210lc-esr2-etched.step/cmt2210lc-esr2-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cmt2210lc-esr2.step/cmt2210lc-esr2.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HopeRF Micro electronics datasheet (18 pp, sha256
4ab7e49e70be802b, retrieved 2026-10-18, 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, primaryclaude-haiku-5-5(text), consensusclaude-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).