Texas Instruments MSP430I2xx 16-bit MCU, MSP430 CPU16, 16.384 MHz, 32 KB Flash, 2K x 8 RAM, dual 24-bit sigma-delta ADC, 16 I/O, I²C/SPI/UART, 32-VFQFN exposed pad, -40°C to 105°C.
| Parameter | Value |
|---|---|
| Series | MSP430I2xx |
| Mounting | Surface Mount |
| Oscillator type | External |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 2.2V ~ 3.6V |
| Operating temperature | -40°C~105°C(TA) |
| Speed | 16.384Mhz |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| RAM size | 2K x 8 |
| Core size | 16-Bit |
| Peripherals | Brown-out Detect/Reset, PWM, WDT |
| Connectivity | I²C, IrDA, SCI, SPI, UART/USART |
| Number of i (O) | 16 |
| Core processor | MSP430 CPU16 |
| Case | 32-VFQFN Exposed Pad |
| Data converters | A/D 2x24b Sigma-Delta |
| Program memory size | 32KB (32K x 8) |
The MSP430I2021TRHBR: Peripherals include brown-out detect, PWM, watchdog timer, and serial connectivity (I²C, IrDA, SCI, SPI, UART/USART). The 16 I/O lines are enough for a local LCD segment driver, pushbuttons, and an isolated UART to a host processor — but not for a heavily multiplexed keypad or parallel bus.
The MSP430I2021TRHBR runs at 16.384 MHz, which drives the sigma-delta ADC sampling and the serial interfaces.
It belongs to the MSP430I2xx series, TI's metrology-focused 16-bit MCU family with integrated sigma-delta ADCs.