The MSP430F1491IPMR: It runs at 8 MHz, carries 60 KB of Flash program memory (60K x 8 plus 256 B), and 2K x 8 of RAM. The 48 I/O lines, SPI and UART/USART connectivity, plus internal oscillator cover a lot of sensor-node and control-loop designs without needing external clock parts. The Slope A/D converter is a distinguishing feature — it's a single-slope type, not a SAR or sigma-delta, so factor that into your analog front-end plan if you need precise multi-channel conversions.
Texas Instruments MSP430F1491IPMR 16-Bit MCU, 60KB Flash
MPNMSP430F1491IPMR
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Texas Instruments MSP430x1xx MSP430F1491IPMR, 16-bit MCU, 8MHz core, 60KB Flash, 2K x 8 RAM, 48 I/O, SPI/UART/USART, 1.8V-3.6V, -40°C to 85°C, 64-LQFP.
$15.9700Ref. price · indicative, final on quote
Packaging64-LQFP
RoHSROHS3 Compliant
SeriesMSP430x1xx
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Series | MSP430x1xx |
| 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 | 8MHz |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| RAM size | 2K x 8 |
| Core size | 16-Bit |
| Peripherals | POR, PWM, WDT |
| Connectivity | SPI, UART/USART |
| Number of i (O) | 48 |
| Core processor | MSP430 CPU16 |
| Case | 64-LQFP |
| Data converters | Slope A/D |
| Program memory size | 60KB (60K x 8 + 256B) |
Product details
Frequently asked questions
How to program MSP430F1491IPMR?
The MSP430F1491IPMR uses the standard MSP430 JTAG/SBW (Spy-Bi-Wire) interface for programming and debug. Texas Instruments offers the MSP-FET430UIF or MSP-FET flash emulation tool. The internal oscillator means no external clock is needed for programming.