Texas Instruments MSP430F5xx series, MSP430F5659IPZR, 16-bit MCU, 20 MHz, 512KB Flash, 66K x 8 RAM, I²C/SPI/UART/USB, 100-LQFP, -40 to 85°C.
| Parameter | Value |
|---|---|
| Series | MSP430F5xx |
| 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 | 20MHz |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| RAM size | 66K x 8 |
| Core size | 16-Bit |
| Peripherals | Brown-out Detect/Reset, DMA, POR, PWM, WDT |
| Connectivity | I²C, IrDA, SCI, SPI, UART/USART, USB |
| Number of i (O) | 74 |
| Core processor | MSP430 CPUXV2 |
| Case | 100-LQFP |
| Data converters | A/D 16x12b; D/A 2x12b |
| Program memory size | 512KB (512K x 8) |
It runs at 20 MHz and packs 512 KB of program Flash and 66 KB of SRAM — enough to host a USB stack, a modest RTOS, and a few communication protocol buffers without hitting the ceiling.
For a BOM that needs multi-year supply assurance, this is a clean line item — no end-of-life scramble to qualify a replacement.
The 'IPZR' suffix indicates a RoHS-compliant, green package.