1.3 VQFN-24 Pinout with I2C and SPI Interface

In the 24-pin VQFN 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. 24-Pin VQFN Pin Configuration
Pin NamePin NumberFunction
VCC12.7V-5.5V Power Supply
NC2, 3, 4, 5, 6, 10, 13, 14, 15, 16, 17, 23Not Internally Connected
CS7Chip Select for SPI
GPIO_18General Purpose I/O pin
GPIO_29General Purpose I/O pin
GPIO_311General Purpose I/O pin
VSS12Ground
SDA18I2C Data
SCL19I2C Clock
SI20SPI Serial Data Input
SCK21SPI Clock
SO22SPI Serial Data Output
RESET24Reset Input, active low
Note: The exposed paddle is electrically isolated from the die. It is recommended that this be connected to GND.
Figure 1-3. Pinout