Texas Instruments MSP430FR5888IPMR

Overview

MSP430FR5888IPMR from Texas Instruments is a 16-bit ultra-low-power FRAM microcontroller with 96KB nonvolatile memory, 2KB RAM, and integrated Extended Scan Interface (ESI) for metering applications. It operates from 1.8 V to 3.6 V, delivers 100 µA/MHz active current, supports RTC in LPM3.5 (0.35 µA), and targets battery-powered water/heat meters requiring long-term data retention and background analog sensing.

For engineers reviewing the MSP430FR5888IPMR datasheet, MSP430FR5888IPMR pinout, MSP430FR5888IPMR application, or MSP430FR5888IPMR equivalent, key selection criteria include ESI peripheral support, FRAM endurance (10¹⁵ write cycles), 12-bit ADC with 12 external inputs, 32-bit hardware multiplier, and LQFP-64 package compatibility with capacitive touch I/O on all ports P1–P10 and PJ.

Technical Context

The MSP430FR5888IPMR implements the ULP CPUXV2 core with seven low-power modes, including LPM3.5 (RTC active) and LPM4.5 (shutdown at 0.02 µA). Its clock system integrates DCO (10 factory-trimmed frequencies), LFXT (32-kHz crystal), and HFXT for flexible timing across measurement and communication tasks.

Peripherals include dual eUSCI_A (UART/IrDA/SPI) and dual eUSCI_B (I²C/SPI) modules, three-channel DMA, CRC16/CRC32 engines, five 16-bit timers (TA0–TA3, TB0), and an ADC12_B with internal reference and sample-and-hold - all optimized for deterministic, low-energy operation in utility metering firmware stacks.

Key Specifications

Pinout & Package

The MSP430FR5888IPMR is housed in a 64-pin LQFP (PM) package with 10 mm × 10 mm body size and standard 0.5-mm pitch. Pin functions are multiplexed across digital I/O, analog peripherals, clocks, and power domains as defined in TI's SLASE32C datasheet.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with MSP430FR5889IPM and MSP430FR5969IPM, the MSP430FR5888IPMR offers optimal balance of ESI-enabled metering functionality, 96 KB FRAM for field-deployable firmware, and proven ultra-low-power operation - making it the preferred choice for cost-sensitive, high-volume utility meter designs where ESI is essential and AES is not required.

Availability

MSP430FR5888IPMR is available at Aetrix Electronics and suitable for water metering, heat cost allocation, and portable medical flowmeter applications requiring stable component supply, long-term lifecycle support, and traceable sourcing from authorized channels.

Supply support for MSP430FR5888IPMR 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 leader delivering analog, embedded processing, and connectivity solutions with emphasis on energy efficiency, reliability, and system-level integration.

The MSP430FR58xx family is designed for ultra-low-power metering and sensing applications, combining FRAM nonvolatility, ESI analog acceleration, and deep-sleep power management to extend battery life in utility and medical instrumentation.

FAQ

What is the maximum operating frequency of the MSP430FR5888IPMR?

The MSP430FR5888IPMR supports a maximum system clock frequency of 16 MHz via its digitally controlled oscillator (DCO) with 10 factory-trimmed settings. This frequency is fully supported across the entire recommended operating voltage range (1.8 V to 3.6 V), enabling deterministic real-time execution in metering firmware without dynamic voltage scaling complexity. The MSP430FR5888IPMR achieves this performance while maintaining ultra-low active current consumption of approximately 100 µA/MHz.

Does the MSP430FR5888IPMR support hardware-accelerated cryptography?

No, the MSP430FR5888IPMR does not include a hardware AES or cryptographic accelerator. It features CRC16 and CRC32 engines for data integrity checking but lacks dedicated encryption/decryption circuitry. For applications requiring AES-128, designers should consider the MSP430FR5969IPM - a pin-compatible alternative in the same LQFP-64 package that integrates an AES-128 accelerator while retaining identical core peripherals except ESI. The MSP430FR5888IPMR prioritizes analog sensing over crypto acceleration.

How many external ADC input channels does the MSP430FR5888IPMR support?

The MSP430FR5888IPMR integrates the ADC12_B module with support for up to 12 external analog input channels. This is confirmed in the device comparison table (Table 3-1) and functional block diagram of the SLASE32C datasheet. The ADC provides 12-bit resolution, internal reference, and sample-and-hold - sufficient for simultaneous temperature, pressure, and flow sensor acquisition in utility metering systems. The MSP430FR5888IPMR does not support the 16-channel ADC configuration found in the MSP430FR688x series.

What is the purpose of the ESI peripheral in the MSP430FR5888IPMR?

The Extended Scan Interface (ESI) in the MSP430FR5888IPMR is a dedicated hardware peripheral for high-precision, low-power capacitance-to-digital conversion - specifically engineered for ultrasonic transducer excitation and echo timing in water and heat meters. It operates autonomously in background mode, supporting up to 16 input channels (via P9.x and dedicated ESI pins), and eliminates CPU involvement during measurement cycles. This directly enables multi-year battery life in sealed meter enclosures, as documented in TI's MSP430FR58xx family user guide and SLASE32C datasheet.

Is the MSP430FR5888IPMR pin-compatible with other devices in the MSP430FR58xx family?

Yes, the MSP430FR5888IPMR is pin-compatible with the MSP430FR5887IPM and MSP430FR5889IPM in the same LQFP-64 (PM) package. All three share identical pin assignments, electrical characteristics, and peripheral mappings - allowing seamless migration between 64 KB, 96 KB, and 128 KB FRAM variants without PCB redesign. This compatibility is explicitly verified in TI's SLASE32C datasheet Section 4.1 (Pin Diagrams) and Table 3-1 (Device Comparison), confirming shared pinout across the MSP430FR588x series in PM packaging.