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Texas Instruments MSP430FE423IPMR — Microcontrollers & Processors (MCU / MPU / DSP)
Texas Instruments

Texas Instruments MSP430FE423IPMR 16-bit MCU, 8.4MHz, 8KB Flash, 3×16-bit ADC

MPNMSP430FE423IPMR
End of Life

Texas Instruments MSP430FE423IPMR, MSP430x4xx series 16-bit MCU, 8.4MHz MSP430 CPU16 core, 8KB FLASH, 256×8 RAM, 3×16-bit sigma-delta ADC, integrated LCD controller, SPI/UART, 14 I/O, 1.8–3.6V supply, -40 to 85 °C, 64-LQFP, Tape & Reel.

$3.6086Ref. price · indicative, final on quote
MSP430FE423IPMR datasheet
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  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
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Specifications

MSP430FE423IPMR Technical Specifications
ParameterValue
SeriesMSP430x4xx
Mounting typeSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.8V ~ 3.6V
Operating temperature-40°C~85°C(TA)
Speed8.4MHz
PackageTape & Reel (TR)
RAM size256 x 8
Core size16-Bit
PeripheralsBrown-out Detect/Reset, LCD, POR, PWM, WDT
ConnectivitySPI, UART/USART
Number of i (O)14
Core processorMSP430 CPU16
Case64-LQFP
Data convertersA/D 3x16b
Program memory size8KB (8K x 8 + 256B)

Product details

Energy-metering MCU with integrated sigma-delta ADC and LCD drive

The Texas Instruments MSP430FE423IPMR is a 16-bit MCU from the MSP430x4xx series, built around the MSP430 CPU16 core running at 8.4 MHz. It packs 8 KB of Flash program memory and 256 bytes of RAM — tight, but sized for single-phase energy-metering firmware and a handful of calibration constants. The standout feature is the three 16-bit sigma-delta ADCs, purpose-built for voltage and current sensing in a watt-hour meter. An integrated LCD controller drives a segment display directly, saving an external driver chip and its board space. Communication runs over SPI or UART/USART; 14 general-purpose I/O handle the rest. Supply range is 1.8 V to 3.6 V, and the operating temperature covers -40 to 85 °C — industrial enough for outdoor meter enclosures and factory floors.

What the 8.4 MHz core and 8 KB Flash mean for your BOM

The CPU16 core runs at 8.4 MHz. The 8 KB Flash and 256 bytes RAM support single-phase metrology firmware.

Package and mounting — 64-LQFP, 10×10 mm

64-lead LQFP with a 10×10 mm body. Surface-mount only.

Frequently asked questions

What is the closest pin-compatible alternative to MSP430FE423IPMR?

The MSP430FE4272 is a pin-compatible upgrade with 32 KB Flash and a 16 MHz core option, sharing the same 3×16-bit sigma-delta ADC and LCD controller. It fits the same 64-LQFP footprint and supply range.

What compliance documentation does TI provide for MSP430FE423IPMR?

Texas Instruments provides RoHS and REACH compliance declarations for this part. The 64-LQFP package is lead-free and compatible with lead-free reflow processes.