Texas Instruments MSP430FR6888IPN

Overview

MSP430FR6888IPN from Texas Instruments is a 16-bit ultra-low-power mixed-signal microcontroller featuring 128KB ferroelectric RAM (FRAM), 2KB SRAM, integrated 12-bit ADC with 16 external inputs, LCD controller supporting up to 320 segments, and dual eUSCI modules (UART/IrDA/SPI + I²C/SPI). It operates from 1.8 V to 3.6 V and targets battery-powered utility metering applications requiring long-term data retention and low active/standby current.

For engineers reviewing the MSP430FR6888IPN datasheet, MSP430FR6888IPN pinout, MSP430FR6888IPN application, or MSP430FR6888IPN equivalent, key selection criteria include FRAM endurance (10¹⁵ write cycles), RTC power in LPM3.5 (0.35 µA), LCD segment drive capability, capacitive touch I/O support on all ports P1–P10/PJ, and UART/I²C bootloader compatibility.

Technical Context

The MSP430FR6888IPN implements the CPUXV2 16-bit RISC core with hardware multiplier and three-channel DMA, enabling deterministic real-time processing for metering firmware. Its clock system integrates DCO (10 factory-trimmed frequencies), LFXT (32-kHz crystal), HFXT (up to 24 MHz), and VLO for flexible low-power timing across operating modes.

Peripherals are partitioned into LPM3.5 domain (RTC, LCD, comparator) and active-domain modules (ADC12_B, timers, eUSCI), allowing selective wake-up and autonomous operation without CPU intervention-critical for periodic sensor readout and display update in water/heat meters.

Key Specifications

Pinout & Package

LQFP-80 package (12 mm × 12 mm), thermally enhanced with exposed pad; 80-pin layout supports full peripheral mapping including dual eUSCI, 16-channel ADC, LCD COM/SEG, RTC, and capacitive touch I/O across all ports.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430FR6879IPN and MSP430FR6877IPN, the MSP430FR6888IPN delivers identical ultra-low-power performance and peripheral integration but is distinguished by its inclusion of the TA3 timer module-enabling advanced PWM generation and high-resolution timing not available in the other two variants.

Availability

MSP430FR6888IPN is available at Aetrix Electronics and suitable for water metering, heat cost allocation, portable medical instrumentation, environmental data logging, and industrial sensor node applications requiring stable component supply, long-term FRAM reliability, and certified low-power operation.

Supply support for MSP430FR6888IPN 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 MSP430 ULP FRAM portfolio targets battery-operated industrial and utility applications where data integrity, decades-long operation, and minimal power budget dominate design constraints-exemplified by the MSP430FR6888IPN's optimized metrology and display subsystems.

FAQ

What is the maximum operating frequency of the MSP430FR6888IPN CPU?

The MSP430FR6888IPN CPUXV2 core operates at up to 16 MHz using the integrated DCO or external HFXT crystal. This frequency is fully supported across the entire 1.8 V–3.6 V supply range, enabling deterministic real-time response for metrology calculations and communication protocol handling without throttling.

Does the MSP430FR6888IPN support hardware encryption?

No, the MSP430FR6888IPN does not include AES or other hardware cryptographic accelerators. It relies on software-based security primitives, including a true random number seed generator for cryptographic key derivation, and memory protection unit (MPU) with IP encapsulation for code integrity enforcement.

How many LCD segments can the MSP430FR6888IPN drive simultaneously?

The MSP430FR6888IPN LCD_C module supports up to 320 segments in static, 2-, 3-, 4-, 6-, or 8-mux configurations. Segment assignments are mapped across P1–P10 and PJ pins, with dedicated COM0–COM7 outputs on P6 and P2 pins-enabling direct drive of large-format utility meter displays without external drivers.

Is the MSP430FR6888IPN pin-compatible with the MSP430FR6879IPN?

Yes, the MSP430FR6888IPN is pin-compatible with the MSP430FR6879IPN in the LQFP-80 package. Both share identical pin numbering, electrical characteristics, and peripheral mappings-including ADC inputs, LCD COM/SEG, eUSCI signals, and timer resources-allowing drop-in replacement where TA3 usage is not required.

What is the write endurance rating of the FRAM in the MSP430FR6888IPN?

The FRAM in the MSP430FR6888IPN is rated for 10¹⁵ write cycles per memory location-orders of magnitude higher than flash or EEPROM. This enables continuous logging (e.g., every second for 30 years) without wear-out concerns, making it ideal for long-life utility metering and data acquisition systems.