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Texas Instruments MSP430F67781IPEU — Microcontrollers & Processors (MCU / MPU / DSP)

Texas Instruments MSP430F67781IPEU 16-bit MCU, 25MHz, 512KB Flash, 128-LQFP

MPNMSP430F67781IPEU
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Texas Instruments MSP430F6xx series, 16-bit MSP430 CPUXV2 MCU, 512KB FLASH, 16KB RAM, 25MHz, 1.8–3.6V supply, 128-LQFP tray.

$17.7578Ref. price · indicative, final on quote
Texas Instruments MSP430F67781IPEU datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

MSP430F67781IPEU specifications
ParameterValue
SeriesMSP430F6xx
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.8V ~ 3.6V
Operating temperature-40°C~85°C(TA)
Speed25MHz
PackageTray
RAM size16K x 8
Core size16-Bit
PeripheralsBrown-out Detect/Reset, DMA, LCD, POR, PWM, WDT, 7x24b Sigma Delta Converter
ConnectivityI²C, IrDA, LINbus, SPI, UART/USART
Number of i (O)90
Core processorMSP430 CPUXV2
Case128-LQFP
Data convertersA/D 8x10b
Program memory size512KB (512K x 8)

Product details

Polyphase metering MCU with seven 24-bit sigma-delta ADCs

The MSP430F67781IPEU is a 16-bit MCU with MSP430 CPUXV2 core, 25 MHz, 512 KB Flash, 16 KB RAM, and seven 24-bit sigma-delta ADCs.

At 25 MHz, the CPUXV2 runs polyphase energy calculations across seven ADC channels with headroom for communication stacks.

The 512 KB Flash can hold a full metering firmware stack including the TI metrology library, calibration constants, and several months of interval data logging. The 16 KB RAM is sufficient for real-time variables and a modest buffer, but not for large graphic frame buffers or extensive protocol parsing — keep the communication payloads lean or use external serial RAM via SPI. The Flash is field-reprogrammable, supporting in-system firmware updates over UART or I²C.

Frequently asked questions

What is MSP430F67781IPEU's listed speed?

The core runs at 25 MHz, which is the CPUXV2's maximum rated clock frequency for this device.

What is the closest pin-compatible alternative to MSP430F67781IPEU?

Within the MSP430F6xx family, the MSP430F67791 (1 MB Flash, same 128-LQFP package) is a higher-density pin-compatible upgrade. No direct second source exists outside TI's portfolio.