Skip to main content
Log in
Texas Instruments MSP430F67791AIPEU — Microcontrollers & Processors (MCU / MPU / DSP)

Texas Instruments MSP430F67791AIPEU 16-bit MCU, 25MHz

MPNMSP430F67791AIPEU
End of Life

Texas Instruments MSP430F67791AIPEU, MSP430F6xx series, 16-bit 25MHz MCU, 512KB FLASH / 32KB RAM, 7x24b sigma-delta + 8x10b ADC, I2C/SPI/UART/LINbus, 90 I/O, 1.8-3.6V, 128-LQFP (20x14mm), -40°C to 85°C.

$16.5800Ref. price · indicative, final on quote
Texas Instruments MSP430F67791AIPEU datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

MSP430F67791AIPEU 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 size32K 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

Energy-measurement MCU with seven 24-bit sigma-delta converters

The MSP430F67791AIPEU: Its defining feature is the array of seven 24-bit sigma-delta ADCs, purpose-designed for polyphase energy metering, power-quality monitoring, and precision sensor conditioning.

Seven 24-bit sigma-delta ADCs — the metrology engine

The seven 24-bit sigma-delta converters are the reason this part exists. They enable simultaneous sampling of voltage and current on up to three phases plus neutral in a polyphase energy meter, delivering the harmonic content and phase information needed for active/reactive/apparent power calculations. The 24-bit resolution provides the dynamic range to measure both idle current and full-load draw without range switching. The 8x10-bit auxiliary ADC handles housekeeping tasks like temperature sensing or DC rail monitoring.

Frequently asked questions

Does the MSP430F67791AIPEU support hardware LINbus framing, or must it be handled in software over UART?

The part lists LINbus as a hardware connectivity option alongside UART/USART, meaning the LIN protocol framing is handled on-chip — no bit-banging in firmware required. Standard RS-485 physical layer still requires external transceiver hardware.

The 90 I/O — does enabling the 8 ADC channels reduce available GPIOs?

The 8 ADC channels share pins with the general-purpose port. When the pin-mux routes a shared pin to the ADC function, it is consumed by the analog block. The firmware pin configuration determines which pins are GPIO and which are analog at any given time.

What is the realistic lead time and traceability position for this part?

With an eol_hot lifecycle, distributor stock is limited and channel inventory carries elevated counterfeit exposure. For 100-unit replenishment, traceability documentation — date code, certificate of conformance, or FAE attestation — should be a non-negotiable gate before production assembly enters the BOM.