SPI device

RC522 RFID

The RC522 RFID is an SPI device in the LabWired part catalog. Its catalog type is rc522. It connects to the MCU over SPI. The catalog gives a supply range of 2.5–3.6 V. It has 8 pins. A registered peripheral model runs in the engine: the firmware talks to it over the real bus and gets device-accurate responses.

From the catalog: SPI register shell for MFRC522; no RF/card air interface.

Key facts

Category	SPI devices
Catalog type	`rc522`
Interface	SPI
Supply range	2.5–3.6 V
Pins	8
Datasheet	NXP MFRC522 datasheet

What LabWired simulates

What is simulated

Simulated device model

How it was validated

Built from the datasheet. Implemented from the part’s register documentation and exercised by automated tests. Nothing physical was ever placed next to it.

RC522 RFID pinout

Power: VCC, GND
SPI: SDA, SCK, MOSI, MISO
GPIO: RST
Other signals: IRQ

Pin	Electrical type	Function
`VCC`	Power input	Supply
`GND`	Power input	Supply
`SDA`	Input	SPI chip select (CS)
`SCK`	Input	SPI clock (SCK)
`MOSI`	Input	SPI data out of the MCU (MOSI)
`MISO`	Output	SPI data into the MCU (MISO)
`RST`	Input	GPIO
`IRQ`	Output	—

How to simulate the RC522 RFID in LabWired

Open the Playground at app.labwired.com and place an MCU board.
Add the RC522 RFID (catalog type rc522).
Connect VCC and GND to the supply and ground of the board. Use a supply inside the catalog range of 2.5–3.6 V.
Connect SCK, MOSI and MISO to the SPI pins of the board.
Connect SDA to the chip-select pin of the board, or to a free GPIO.
Connect RST to a free GPIO pin.
Connect IRQ as your circuit needs.
Run the firmware. It selects the part and moves bytes over the simulated SPI bus as on hardware.

Related SPI devices

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Modelled from NXP MFRC522 datasheet.

Wire it up in Playground → See the full validation matrix