SLASF63 june 2023 DAC539E4W
PRODUCTION DATA
Refer to the PDF data sheet for device specific package drawings
The DAC539E4W has four digital I/O pins that include I2C and SPI. These devices automatically detect I2C and SPI protocols at the first successful communication after power-on, and then connect to the detected interface. After an interface protocol is connected, any change in the protocol is ignored. The I2C interface uses the A0 pin to select from among four address options. The SPI is a 3-wire interface by default. No readback capability is available in this mode. The NC/SDO pin can be configured in the register map and then programmed in to the NVM as the SDO output. The SPI readback mode is slower than the write mode. The programming interface pins are: