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Texas Instruments MSP430FR68891IPNR — Microcontrollers & Processors (MCU / MPU / DSP)
Texas Instruments

MSP430FR68891IPNR 16-Bit MCU, 128KB FRAM, 16MHz, 80-LQFP

MPNMSP430FR68891IPNR
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Texas Instruments MSP430™ FRAM series, MSP430FR68891IPNR, 16-Bit MCU, 16MHz, 128KB FRAM, 2K x 8 RAM, 63 I/O, I²C/SPI/UART, 12x12b ADC, 1.8V-3.6V, -40°C~85°C, 80-LQFP.

$5.2682Ref. price · indicative, final on quote
MSP430FR68891IPNR datasheet
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Specifications

MSP430FR68891IPNR Technical Specifications
ParameterValue
SeriesMSP430™ FRAM
Mounting typeSurface Mount
Oscillator typeInternal
Program memory typeFRAM
Voltage - supply (Vcc (Vdd))1.8V ~ 3.6V
Operating temperature-40°C~85°C(TA)
Speed16MHz
PackageTape & Reel (TR)
RAM size2K x 8
Core size16-Bit
PeripheralsBrown-out Detect/Reset, DMA, POR, PWM, WDT
ConnectivityI²C, IrDA, SCI, SPI, UART/USART
Number of i (O)63
Core processorMSP430 CPUXV2
Case80-LQFP
Data convertersA/D 12x12b
Program memory size128KB (128K x 8)

Product details

128 KB FRAM — why it changes the memory equation

Its program memory is 128 KB of FRAM (ferroelectric RAM), which combines the non-volatility of Flash with write speeds closer to SRAM and endurance rated for 10^15 cycles — orders of magnitude beyond typical Flash. That means you can treat the FRAM as both code store and data-logging space without wear-leveling overhead. The 2K x 8 RAM handles stack and scratchpad.

63 I/O and peripheral set for sensor-heavy designs

The integrated 12-channel 12-bit ADC handles analog inputs directly. Brown-out detect, POR, DMA, and a watchdog timer are on-chip, reducing external BOM count.

Frequently asked questions

Is MSP430FR68891IPNR compatible with existing MSP430 low-power designs?

Yes. The MSP430FR68891IPNR uses the same MSP430 CPUXV2 core and peripheral set as other MSP430 FRAM series devices. Code written for MSP430F series parts may need minor porting due to FRAM timing differences, but the low-power modes (LPM0–LPM4) and clock tree are consistent across the family.

What are the key differences between MSP430FR68891IPNR and MSP430FR68791IPNR?

The primary difference is program memory density: the MSP430FR68891IPNR has 128 KB of FRAM, while the MSP430FR68791IPNR has 64 KB. Both share the same 80-LQFP package, 63 I/O, 16 MHz core, and peripheral set. The 128 KB variant is the choice for larger firmware images or data-logging buffers.

Can MSP430FR68891IPNR be used in automotive or industrial temperature ranges?

It is not AEC-Q100 qualified, so it is not recommended for under-hood automotive applications. For industrial control, outdoor telecom, and factory automation, the temperature grade is appropriate.

What development tools are supported for programming MSP430FR68891IPNR?

The MSP430FR68891IPNR is programmed and debugged via the standard Spy-Bi-Wire (SBW) interface, supported by TI's MSP-FET programmer, the LaunchPad development kits, and third-party tools like the Segger J-Link. Code Composer Studio and IAR Embedded Workbench are the primary IDEs.