Texas Instruments MSP430G2553IRHB32T, MSP430G2xx series, 16-Bit MCU, 16MHz, 16KB Flash, 512 x 8 RAM, 24 I/O, I²C/SPI/UART, 1.8V-3.6V, -40°C to 85°C, 32-VFQFN.
| Parameter | Value |
|---|---|
| Series | MSP430G2xx |
| Mounting | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 1.8V ~ 3.6V |
| Operating temperature | -40°C~85°C(TA) |
| Speed | 16MHz |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| RAM size | 512 x 8 |
| Core size | 16-Bit |
| Peripherals | Brown-out Detect/Reset, DMA, POR, PWM, WDT |
| Connectivity | I²C, IrDA, LINbus, SCI, SPI, UART/USART |
| Number of i (O) | 24 |
| Core processor | MSP430 CPU16 |
| Case | 32-VFQFN Exposed Pad |
| Data converters | A/D 8x10b |
| Program memory size | 16KB (16K x 8) |
It runs at 16 MHz and packs 16 KB of Flash program memory with 512 bytes of RAM — enough for sensor fusion, simple control loops, or a UART-to-I²C bridge in a battery-powered design.
The 8-channel 10-bit ADC is enough for battery monitoring or reading a handful of analog sensors.
The core runs at 16 MHz. That is the maximum clock frequency for the MSP430 CPU16 core in this device.
Both share the same MSP430G2553 core, Flash and RAM sizes, and peripheral set. The difference is the package: the IRHB32T comes in a 32-VFQFN (5x5 mm) while the IPW20 is a 20-pin TSSOP. They are not pin-compatible — the PCB footprint and pin count differ, so a board redesign is needed to swap one for the other.