@page deviceSpecifications Device Specifications

## Microcontroller: Texas Instruments MSP430F5438AIPZR

- Power
  - 1.8V to 3.6V Supply Voltage
  - Up to 4.6mA needed
- Capabilities:
  - 16-bit architecture
  - 25MHz System Clock
- Notable Peripherals:
  - Up to 4 of:
    - UART/SPI
  - Up to 4 of:
    - I2C/SPI
  - 12-bit ADC
    - 14 external channels



## Real-Time Clock/Calendar: Microchip Technology ‎MCP7940MT-I/SN

- Power
  - 1.8V to 5.5V Supply Voltage
  - 1.2uA typical timekeeping current required at 3.3V (This will be powered exclusively by a CR2032 battery)
- Notable Peripherals:
  - I2C
    - Slave only
    - Clock rate up to 400kHz



## Bluetooth/Wi-Fi: Espressif Systems ESP32-WROVER-IE (8MB)

- Power
  - 3.0V to 3.6V Supply Voltage
  - Minimum 500mA needed up to 1.6A (500mA + 1100mA maximum cumulative IO output)
- Notable Peripherals:
  - I2C (2)
    - Master or Slave
    - 100kbit/s or 400kbit/s
    - 7-bit/10-bit addressing mode
  - SPI
    - SPI, HSPI and VSPI
    - Master or Slave
    - 1-line full-duplex and 1/2/4-line half-duplex
    - Up to 80MHz
    - Up to 64-byte FIFO
  - UART (3)
    - Up to 5Mbps



## GPS Receiver: U-Blox NEO-M8Q-01A

- Power
  - 2.7V to 3.6V
  - 67mA maximum current needed; 17mA typical will be likely usage
- Notable Peripherals:
  - SPI
    - Slave Only
    - 5.5MHz
  - UART
  - I2C (Also called Display Data Channel (DDC))
    - Slave Only
    - 400kHz



## CANbus Controller: Microchip Technology MCP2515T-I/SO

- Power
  - 2.7V to 5.5V Supply Voltage
  - 5mA typical in active mode; 1uA typical in sleep mode
- Notable Peripherals:
  - SPI
    - Slave (Assuming only option)
    - 10MHz



## CANbus Transceiver: ‎Texas Instruments SN65HVD234D

- Power
  - 3V to 3.6V Supply Voltage
  - 6mA typical maximum; 200uA typical in standby
- Used directly with CANbus Controller



## SD Card (Generic)

- Power
  - 2.7V to 3.6V Supply Voltage
- Notable Peripherals:
  - SPI



## USB to UART Bridge: Future Technology Devices International FT230XS-R

- Power
  - 3V to 5V Supply Voltage
  - 8.3mA maximum usage in normal operation (This chip will be exclusively powered an external host device)
- Notable Peripherals:
  - UART



## RS-232 Transceiver: Maxim Integrated MAX3232EUE+

- Power
  - 3V to 5.5V Supply Voltage
  - Estimating 0.3mA typical average usage
- Will use UART from the MCU



## Inertial Measurement Unit: TDK InvenSense ICM-20948

- Power
  - 1.71V to 3.6V Supply Voltage
  - 3mA typical usage in full 9-Axis mode; 8uA typical in "Full-Chip Sleep Mode"
- VDDIO Voltage input also needed from 1.71V to 1.95V
- Notable Peripherals:
  - I2C
    - Slave only
    - 400kHz
  - SPI
    - Slave only
    - 7MHz