The MSP430F5171IDAR: The 25 MHz CPU clock is the headline performance spec for this 16-bit core. It sets the timing budget for bus peripherals and real-time control loops: at 25 MHz, a single-cycle instruction executes in 40 ns. For applications like motor commutation or sensor polling, this is fast enough for most low-to-mid-speed control without needing a 32-bit core. The 32 KB Flash is sized for moderate firmware loads — think a field-programmable sensor hub or a simple motor drive — and the 2K x 8 RAM is tight for buffering; expect to manage data buffers carefully or use the DMA to offload the CPU.
TI MSP430F5171IDAR 16-bit MCU, 25MHz, 32KB Flash, 38-TSSOP
MPNMSP430F5171IDAR
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Texas Instruments MSP430F5xx series 16-bit MCU, MSP430 CPUXV2 core, 25MHz, 32KB (32K x 8) Flash, 2K x 8 RAM, 29 I/O, I²C/SPI/UART/USART/SCI/IrDA, 1.8V~3.6V, -40°C~85°C, 38-TSSOP.
$4.8100Ref. 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 | Tape & Reel (TR); Cut Tape (CT) |
| RAM size | 2K x 8 |
| Core size | 16-Bit |
| Peripherals | Brown-out Detect/Reset, DMA, POR, PWM, WDT |
| Connectivity | I²C, IrDA, SCI, SPI, UART/USART |
| Number of i (O) | 29 |
| Core processor | MSP430 CPUXV2 |
| Case | 38-TSSOP (0.240\", 6.10mm Width) |
| Program memory size | 32KB (32K x 8) |
Product details
Frequently asked questions
What is MSP430F5171IDAR's listed speed?
The MSP430F5171IDAR runs at 25 MHz on its MSP430 CPUXV2 core, which gives a 40 ns instruction cycle time for single-cycle operations.
What is the operating temperature range of MSP430F5171IDAR?
It is rated for -40°C to 85°C, the industrial temperature grade, suitable for factory-floor and outdoor telecom environments.