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CMT2210LS-ESR

HopeRF Micro electronics · RF Transceiver ICs · SOIC-8

CMT2210LS-ESR 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 GND power_in Ground reference pin for the receiver, per the pin table.
2 RFIN input RF signal input to the chip's LNA; the datasheet states a 50 Ω match needs only one low-cost inductor and one capacitor (L1, C1).
3 VDD power_in Power supply input; the recommended operating supply range is 1.8 V to 3.6 V.
4 NC unconnected No connection; leave floating.
5 DOUT output Demodulated received data output to the external MCU.
6 SDN input Chip shutdown control input: pull low to enable receiver operation and pull high to turn the receiver off.
7 NC unconnected No connection; leave floating.
8 XIN input Crystal oscillator input or external reference clock input; an external clock must be AC-coupled with 0.3 V to 0.7 V peak-to-peak amplitude.

Key specifications

Parameter Value
Manufacturer HopeRF Micro electronics
Package SOIC-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 ℃ 5
Supply voltage (absolute maximum) VDD -0.3 3.6 V 5
Interface voltage (absolute maximum) VIN -0.3 V 5
Junction temperature (absolute maximum) TJ -40 125 ℃ 5
Storage temperature (absolute maximum) TSTG -50 150 ℃ 5
Soldering temperature (absolute maximum) TSDR 255 ℃ 持续至少 30 秒 5
ESD rating, human body model -2 2 kV 人体模型(HBM) 5
Latch-up current -100 100 mA @ 85 ℃ 5
Data rate DR 1 5 kbps 6
Crystal frequency accuracy -20 20 ppm 6

CAD (KiCad official)

  • Symbol: CMT2210LS-ESR
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: cmt2210ls-esr-etched.step / cmt2210ls-esr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cmt2210ls-esr.step / cmt2210ls-esr.glb are the bare package body.

Provenance

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

  • Datasheet: HopeRF Micro electronics datasheet (18 pp, sha256 cf249986fa453d93, retrieved 2026-10-19, 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