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CMT2310A-EQR

Public Made by Adom

by adom

HopeRF Micro electronics RF Transceiver ICs, QFN-24-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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docs cmt2310a-eqr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
viewers cmt2310a-eqr: viewers · Ray
cmt2310a-eqr-etched.fit.json cmt2310a-eqr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
cmt2310a-eqr-etched.glb cmt2310a-eqr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
cmt2310a-eqr-etched.step cmt2310a-eqr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
cmt2310a-eqr.glb Publish 0.1.0 · Ray
cmt2310a-eqr.kicad_mod Publish 0.1.0 · Ray
cmt2310a-eqr.kicad_sym Publish 0.1.0 · Ray
cmt2310a-eqr.lbr Publish 0.1.0 · Ray
cmt2310a-eqr.step Publish 0.1.0 · Ray
package.json cmt2310a-eqr: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray
page.json cmt2310a-eqr: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray
README.md Initial commit: component/cmt2310a-eqr · Ray

CMT2310A-EQR

HopeRF Micro electronics · RF Transceiver ICs · QFN-24-EP(4x4)

CMT2310A-EQR from HopeRF Micro electronics, in a QFN-24-EP(4x4). 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 RFP input RF signal input positive terminal with differential input impedance 150Ω
2 RFN input RF signal input negative terminal with differential input impedance 150Ω
3 NC unconnected No internal connection; leave floating or unconnected.
4 TX output PA output for RF transmission with configurable output power range -10 to +20 dBm at 1dB step resolution.
5 PA_VDD power_in Power supply for power amplifier section with supply voltage range 1.8-3.6V.
6 VIO power_in Power supply for SPI interface and GPIO outputs with supply voltage range 1.8-3.6V.
7 GPIO4 bidirectional Configurable general-purpose I/O pin that can be configured as DOUT, INT1, INT2, DCLK, CLKO, or LFCLKO per register settings.
8 GPIO5_RST bidirectional Configurable general-purpose I/O pin that can be configured as RSTn, INT1, INT2, DOUT, or DCLK per register settings.
9 DVDD power_in Digital core power supply with supply voltage range 1.8-3.6V.
10 AVDD power_in Analog circuit power supply with supply voltage range 1.8-3.6V.
11 DC_VSW power_out DC-DC converter switching node for external LC filter; connect to 10µH inductor for buck converter topology.
12 VBAT power_in Battery or primary power supply input with supply voltage range 1.8-3.6V.
13 GPIO3 bidirectional Configurable general-purpose I/O pin that can be configured as INT1, INT2, DCLK, DOUT, or ANTD2 per register settings.
14 GPIO2 bidirectional Configurable general-purpose I/O pin that can be configured as INT1, INT2, INT3, DCLK, DOUT, or ANTD1 per register settings.
15 SCLK input SPI serial clock input with maximum frequency 10MHz.
16 SDO output SPI serial data output driven on SCLK falling edge with output levels 0.4V (low) and VDD-0.4V (high).
17 SDI input SPI serial data input sampled on SCLK rising edge with input voltage levels 0.2×VDD (low) and VDD-0.4V (high).
18 CSB input SPI chip select input, active low, determines when SPI transaction is enabled.
19 XI input Crystal oscillator input for 32MHz reference clock with 12pF load capacitance requirement.
20 XO output Crystal oscillator output for 32MHz reference clock with 12pF load capacitance requirement.
21 NIRQ bidirectional Configurable interrupt output or general-purpose I/O pin that can be configured as INT1, INT2, DCLK, DOUT, or TCXO per register settings.
22 GPIO1 bidirectional Configurable general-purpose I/O pin that can be configured as DCLK, INT1, INT2, DOUT, or TRX_SWT per register settings.
23 GPIO0 bidirectional Configurable general-purpose I/O pin that can be configured as DOUT, INT1, INT2, INT3, DCLK, or TRX_SWT per register settings.
24 AGND power_in Analog ground reference; connect to ground plane.
25 GND power_in Digital ground and exposed thermal pad; connect to ground plane.

Key specifications

Parameter Value
Manufacturer HopeRF Micro electronics
Package QFN-24-EP(4x4)
Category RF And Wireless
Pins 25

CAD (KiCad official)

  • Symbol: CMT2310A-EQR
  • Footprint: Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.7x2.7mm
  • 3D model: QFN-24-EP(4x4) (KiCad packages3D, STEP)
  • 3D model files: cmt2310a-eqr-etched.step / cmt2310a-eqr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cmt2310a-eqr.step / cmt2310a-eqr.glb are the bare package body.

Provenance

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

  • Datasheet: HopeRF Micro electronics datasheet (51 pp, sha256 fcff1a33a0e1c674, retrieved 2026-09-22, 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 0.2, 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