Texas Instruments MSP430FR4132IPMR

Overview

MSP430FR4132IPMR from Texas Instruments is a 16-bit ultra-low-power FRAM microcontroller with 8KB program FRAM + 512B information FRAM + 1KB RAM, integrated 10-bit 200 ksps ADC, LCD driver supporting up to 4×36 or 8×32 segments, and capacitive touch I/O - designed for battery-powered metering and portable medical devices such as water meters and blood glucose monitors.

For engineers reviewing the MSP430FR4132IPMR datasheet, MSP430FR4132IPMR pinout, MSP430FR4132IPMR application, or MSP430FR4132IPMR equivalent, key selection criteria include FRAM endurance (10¹⁵ write cycles), LPM3.5 current (<1 µA with RTC + LCD active), 16-MHz DCO accuracy (±1% at room temperature), and 60 GPIOs in LQFP-64 package with full capacitive touch capability.

Technical Context

The MSP430FR4132IPMR implements a 16-bit RISC CPU with constant generators and unified FRAM memory architecture, enabling fast code execution and zero-wait-state nonvolatile storage. Its clock system integrates a 16-MHz DCO with FLL, 32-kHz REFO, 10-kHz VLO, and external XT1 crystal support - all programmable via CS module registers.

Peripherals include two Timer_A3 modules (each with three capture/compare registers), eUSCI_A0 (UART/IrDA/SPI) and eUSCI_B0 (SPI/I²C), CRC16 engine, RTC counter, and LCD controller with on-chip charge pump for LPM3.5 operation - all managed through dedicated control registers and interrupt vectors mapped to P1/P2 wake-up pins.

Key Specifications

Pinout & Package

LQFP-64 (PM) package, 10 mm × 10 mm body size, 0.5 mm pitch, thermally enhanced with exposed thermal pad (not electrically connected).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar ultra-low-power mixed-signal microcontroller applications.

Compared with MSP430FR4133IPMR, the MSP430FR4132IPMR offers reduced memory (8 KB vs. 15.5 KB FRAM) but identical low-power performance, LCD capability, and pin compatibility - making it optimal for cost-sensitive metering designs where firmware fits within 8 KB. The MSP430FR2476TPMR trades LCD integration for greater memory and lacks pin compatibility, requiring PCB redesign.

Availability

MSP430FR4132IPMR is available at Aetrix Electronics and suitable for water metering, blood glucose monitoring, and thermostat control requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for industrial and medical OEM programs.

Supply support for MSP430FR4132IPMR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and consumer markets since 1930.

The MSP430FR41xx family was designed specifically for ultra-low-power LCD-based metering and portable medical devices - combining FRAM nonvolatility, sub-µA real-time operation, and integrated analog peripherals in a single chip.

FAQ

What is the maximum operating frequency of the MSP430FR4132IPMR?

The MSP430FR4132IPMR operates at up to 16 MHz using its digitally controlled oscillator (DCO) with frequency-locked loop (FLL). At room temperature with internal reference, the DCO achieves ±1% accuracy - sufficient for UART timing and real-time control without external crystal dependency.

Does the MSP430FR4132IPMR support capacitive touch sensing on all I/O pins?

Yes, the MSP430FR4132IPMR supports capacitive touch sensing on all 60 GPIOs. This capability is implemented in hardware via the built-in capacitive touch I/O module, eliminating the need for external RC networks or dedicated touch controllers in applications like sealed thermostats and smart meters.

What LCD configurations does the MSP430FR4132IPMR support?

The MSP430FR4132IPMR supports up to 4×36 or 8×32 segment LCD configurations. Each LCD pin is software configurable as either SEG or COM, and contrast is adjustable from 2.6 V to 3.5 V in 0.06-V steps - enabling flexible display design for metering and medical interfaces.

How much FRAM and RAM does the MSP430FR4132IPMR include?

The MSP430FR4132IPMR includes 8 KB of program FRAM, 512 B of information FRAM, and 1 KB of SRAM. All FRAM is unified, ECC-protected, and rated for 10¹⁵ write cycles - providing reliable nonvolatile storage for firmware, calibration data, and event logs.

What is the lowest power consumption mode with RTC and LCD active on the MSP430FR4132IPMR?

The lowest power mode with both RTC and LCD active is LPM3.5, consuming less than 1 µA at 3 V and 25°C. In this mode, the RTC counter and LCD controller remain functional while the CPU, flash/FROM, and most peripherals are powered down - enabling decade-long battery operation in metering applications.