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I²C device

NAU88L21 Audio Codec

The NAU88L21 Audio Codec is an I²C device in the LabWired part catalog. Its catalog type is nau88l21. It connects to the MCU over I²C at the default address 0x1B. It has 4 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: I²C control port and register file. Address 0x1B (CSB low, default) or 0x54 (CSB high). The I²S audio path is not modelled.

Key facts

CategoryI²C devices
Catalog typenau88l21
InterfaceI²C
Default I²C address0x1B (27 decimal)
Pins4

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.

NAU88L21 Audio Codec pinout

PinElectrical typeFunction
VCC Power input Supply
GND Power input Supply
SDA Open-drain I²C data (SDA)
SCL Open-drain I²C clock (SCL)

How to simulate the NAU88L21 Audio Codec in LabWired

  1. Open the Playground at app.labwired.com and place an MCU board.
  2. Add the NAU88L21 Audio Codec (catalog type nau88l21).
  3. Connect VCC and GND to the supply and ground of the board.
  4. Connect SDA and SCL to the I²C data and clock pins of the board.
  5. Run the firmware. It finds the part on the I²C bus at 0x1B and reads and writes it as on hardware.

Related I²C devices

All I²C devices · All parts

Further reading

No manufacturer datasheet is indexed for this part yet, so none is linked here.