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Texas Instruments MSP430FE423AIPM — Microcontrollers & Processors (MCU / MPU / DSP)

Texas Instruments MSP430FE423AIPM 16-bit MCU, 8.4 MHz, 8 KB Flash

MPNMSP430FE423AIPM
End of Life

Texas Instruments MSP430FE423AIPM, MSP430x4xx series, 16-bit MSP430 CPU at 8.4MHz, 8KB Flash / 256B RAM, 3x16-bit A/D, LCD driver, SPI/UART, 1.8-3.6V, 64-LQFP (10x10mm) in Tray, -40 to 85°C operating temperature.

$5.5066Ref. price · indicative, final on quote
Texas Instruments MSP430FE423AIPM datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

MSP430FE423AIPM specifications
ParameterValue
SeriesMSP430x4xx
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.8V ~ 3.6V
Operating temperature-40°C~85°C(TA)
Speed8.4MHz
PackageTray
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

MSP430FE423AIPM — 16-bit MCU for energy metering

The Texas Instruments MSP430FE423AIPM is a 16-bit MSP430 MCU clocked at 8.4 MHz, purpose-built for single-phase energy metering and polyphase metering front-ends. It integrates three 16-bit sigma-delta ADCs, an LCD driver, and a hardware multiplier on a single die. The 8 KB Flash and 256 B RAM are sized for metering algorithms and calibration constants, not general-purpose multitasking. The 64-LQFP package (10x10 mm) carries 14 I/O lines plus SPI and UART connectivity for communication module interface.

What the 8.4 MHz clock and 3x16-bit ADC mean for the BOM

The 8.4 MHz CPU clock and three 16-bit sigma-delta ADCs sample voltage and current channels simultaneously. The 8 KB Flash holds metering firmware; 256 B RAM handles runtime variables.

Rated for -40 to 85 °C ambient, the MSP430FE423AIPM operates from 1.8 V to 3.6 V.

Frequently asked questions

What is the replacement for MSP430FE423AIPM?

Texas Instruments has not announced a direct replacement for the MSP430FE423AIPM. For designs requiring more Flash memory, the MSP430FE427AIPM (16 KB Flash) is a pin-compatible option within the same MSP430FE42x family. No official successor order code is published.

What is the operating voltage of MSP430FE423AIPM?

The supply voltage range is 1.8 V to 3.6 V, covering both 3.3 V regulated rails and direct battery operation.

Where can I buy MSP430FE423AIPM?

The MSP430FE423AIPM is sourced through independent distribution channels. It is quoted to order against an RFQ; availability and current pricing are confirmed at the time of quotation.

What is the pinout of MSP430FE423AIPM?

The device is supplied in a 64-LQFP (10x10 mm) package. Pin assignments are documented in the Texas Instruments datasheet for the MSP430FE42x family, which covers the full pinout including the three ADC inputs, LCD segment drivers, and SPI/UART pins.