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JSMRC523

Public Made by Adom

by adom

JSMSEMI RFID ICs, QFN-32-EP(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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JSMRC523

JSMSEMI · RFID ICs · QFN-32-EP(5x5)

JSMRC523 from JSMSEMI, in a QFN-32-EP(5x5). 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 A1 input Address line input.
2 PVDD power_in Pin power supply.
3 DVDD power_in Digital power supply.
4 DVSS power_in Digital ground.
5 PVSS power_in Pin power supply ground.
6 NRSTPD input Reset and power-down input: when low, internal blocks including the oscillator stop and the input pins are disconnected from the outside; a rising edge starts the internal reset phase.
7 SIGIN input Communication interface input that receives the digital serial data stream.
8 SIGOUT output Communication interface output that outputs the serial data stream.
9 SVDD power_in I2C pin power supply that powers the I2C pins.
10 TVSS power_in Ground for the TX1 and TX2 transmitter output stages.
11 TX1 output Carrier transmit output 1.
12 TVDD power_in Transmitter driver power supply.
13 TX2 output Carrier transmit output 2.
14 TVSS power_in Transmitter driver power supply ground.
15 AVDD power_in Analog power supply.
16 VMID power_out Internal reference voltage.
17 RX input RF signal input.
18 AVSS power_in Analog ground.
19 AUX1 output Auxiliary output for testing.
20 AUX2 output Auxiliary output for testing.
21 OSCIN input Crystal oscillator inverting amplifier input, also usable as external clock input (fosc=27.12MHz).
22 OSCOUT output Crystal oscillator inverting amplifier output.
23 IRQ output Interrupt request output indicating an interrupt event.
24 ALE input Address latch enable: latches AD0-AD5 into the internal address latch when high.
25 D1 bidirectional Bit of the 8-bit bidirectional data bus (D1-D7); the 8-bit parallel interface is not supported, with I2C these pins can define the I2C address, with serial interfaces they can be used as test signals or I/O.
26 D2 bidirectional Bit of the 8-bit bidirectional data bus (D1-D7); the 8-bit parallel interface is not supported, with I2C these pins can define the I2C address, with serial interfaces they can be used as test signals or I/O.
27 D3 bidirectional Bit of the 8-bit bidirectional data bus (D1-D7); the 8-bit parallel interface is not supported, with I2C these pins can define the I2C address, with serial interfaces they can be used as test signals or I/O.
28 D4 bidirectional Bit of the 8-bit bidirectional data bus (D1-D7); the 8-bit parallel interface is not supported, with I2C these pins can define the I2C address, with serial interfaces they can be used as test signals or I/O.
29 D5 bidirectional Bit of the 8-bit bidirectional data bus (D1-D7); the 8-bit parallel interface is not supported, with I2C these pins can define the I2C address, with serial interfaces they can be used as test signals or I/O.
30 D6 bidirectional Bit of the 8-bit bidirectional data bus (D1-D7); the 8-bit parallel interface is not supported, with I2C these pins can define the I2C address, with serial interfaces they can be used as test signals or I/O.
31 D7 bidirectional Bit of the 8-bit bidirectional data bus (D1-D7); the 8-bit parallel interface is not supported, with I2C these pins can define the I2C address, with serial interfaces they can be used as test signals or I/O.
32 A0 input Address line input.
33 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer JSMSEMI
Package QFN-32-EP(5x5)
Category RF And Wireless
Pins 33

CAD (KiCad official)

  • Symbol: JSMRC523
  • Footprint: Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.3x3.3mm
  • 3D model: QFN-32-EP(5x5) (KiCad packages3D, STEP)
  • 3D model files: jsmrc523-etched.step / jsmrc523-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); jsmrc523.step / jsmrc523.glb are the bare package body.

Provenance

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

  • Datasheet: JSMSEMI datasheet (24 pp, sha256 034421b5859b136a, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (vision), consensus claude-opus-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