Housed in a 48-pin LQFP with a 7 mm × 7 mm body (48-LQFP), the MSP430F5309IPT is a surface-mount device intended for reflow assembly. The package has a 0.5 mm pitch, so the PCB layout should follow the manufacturer's land pattern for the 48-LQFP to avoid solder bridging. Supply decoupling with a 0.1 µF ceramic per Vcc pin, placed close to the package, is standard practice for this class of MCU.
Texas Instruments MSP430F5309IPT 16-bit MCU, 25 MHz
MPNMSP430F5309IPT
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Texas Instruments MSP430F5xx series MSP430F5309IPT, 16-bit MCU, MSP430 CPUXV2 core, 25 MHz, 24 KB Flash, 6K x 8 RAM, 31 I/O, I2C/SPI/UART/LIN, 8x10b ADC, 1.8V-3.6V, -40°C to 85°C, 48-LQFP.
$2.8102Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| 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 | 25MHz |
| Package | Tray |
| RAM size | 6K 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) | 31 |
| Core processor | MSP430 CPUXV2 |
| Case | 48-LQFP |
| Data converters | A/D 8x10b |
| Program memory size | 24KB (24K x 8) |
Product details
Frequently asked questions
What is the closest pin-compatible alternative to MSP430F5309IPT in the MSP430F5xx family?
Within the MSP430F5xx family, pin-compatible variants differ primarily in Flash and RAM density. The MSP430F5309IPT sits at the 24 KB Flash / 6 KB RAM tier; a higher-density sibling with the same 48-LQFP footprint would offer more memory while keeping the same pinout and peripheral set. Check the family selector guide for the exact order code matching your memory requirement.