1.3 SOIC-14 Pinout with I2C and SPI Interface

In the 14-pin package, there is access to both the I2C and SPI bus pins. Both can be used simultaneously. However, any concurrent transactions must be to different blocks in the device.

Pull-up resistors are required for proper operation of the I2C bus, sized according to the board configuration and bus speed required per the I2C specification.

Table 1-3. 14-Pin SOIC Pin Configuration
Pin NamePin NumberFunction
CS1Chip Select for SPI
GPIO_12General Purpose I/O pin
GPIO_23General Purpose I/O pin
NC4, 5Not Internally Connected
GPIO_36General Purpose I/O pin
VSS7Ground
SDA8I2C Data
SCL9I2C Clock
SI10SPI Serial Data Input
SCK11SPI Clock
SO12SPI Serial Data Output
RESET13Reset Input, active low
VCC142.7V-5.5V Power Supply
Figure 1-3. Pinout