Texas Instruments MSP430FR69791IPN

Mfr. Part

MSP430FR69791IPN

Manufacturer

Luminary Micro/Texas Instruments

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Detailed Description

16-bit ultra-low-power MSP430 CPUxV2 microcontroller with 128KB FRAM and 2KB RAM in an 80-pin LQFP (12x12 mm) package. Runs up to 16 MHz, supports up to 63 GPIOs, and integrates LCD driver, 12-channel 12-bit ADC, DMA, PWM, watchdog, brown-out detect/reset, and robust communication interfaces (I2C, SPI, UART/USART, IrDA, SCI). Operates from 1.8V to 3.6V with internal oscillator. RoHS3 compliant. Suitable for battery-powered and cost-sensitive embedded designs needing fast nonvolatile memory writes and low energy consumption.

Key Features

Core and speed: MSP430 CPUxV2, 16-bit, up to 16 MHz

Memory: 128KB FRAM (fast, nonvolatile), 2KB RAM

Package: 80-LQFP, 12x12 mm body, surface-mount

I/O: Up to 63 general-purpose I/O pins

Peripherals: LCD controller, DMA, PWM, watchdog (WDT), brown-out detect/reset (BOD), power-on reset (POR)

Data converter: 12-bit ADC, 12 channels (A/D 12x12b)

Connectivity: I2C, SPI, UART/USART, IrDA, SCI

Clocking: Internal oscillator

Supply voltage: 1.8V to 3.6V

Operating temperature: -40°C to +85°C (TA)

Series: MSP430 FRAM family

Compliance: RoHS3 compliant

Supplier device package: 80-LQFP (12x12)

Mounting type: Surface mount

Base product number: MSP430FR69791

Key Advantages

Ultra-low power: MSP430 architecture and FRAM allow very low active and sleep currents, extending battery life

Fast nonvolatile writes: FRAM writes are quick and energy-efficient, enabling frequent data logging without wear-out issues typical of Flash

High endurance data storage: FRAM supports very high write endurance and near-instant writes, ideal for real-time data capture

Integrated LCD driver: Simplifies designs with segmented displays, reduces external components

Rich analog and digital integration: 12-bit ADC, multiple timers/PWM, DMA, WDT reduce CPU load and improve system responsiveness

Flexible communication: I2C, SPI, UART/USART, IrDA, SCI cover common embedded interfaces

Broad supply range: 1.8V to 3.6V supports coin-cell, 2xAA/AAA, Li-ion, and regulated rails

Robust operation: Brown-out detect/reset and POR improve reliability in noisy or battery environments

Simple development: MSP430 ecosystem, tools, and documentation accelerate time to market

Packaging

Type: 80-pin LQFP, body size 12x12 mm, standard low-profile quad flat package

Material: Molded epoxy plastic with copper leadframe; lead-free matte tin terminal finish

Pin configuration: 80 total pins; up to 63 configurable GPIOs; dedicated power, ground, oscillator, and interface pins

Pitch and dimensions: Typical LQFP pitch ~0.50 mm; 12x12 mm body; low profile height

Mounting: Surface mount; suitable for automated SMT assembly (reflow soldering)

Thermal characteristics: Designed for ambient -40°C to +85°C; LQFP form factor supports adequate thermal dissipation with proper PCB copper area; no exposed thermal pad

Electrical properties: 1.8V to 3.6V supply, internal oscillator, 12-bit ADC, integrated reset and watchdog, FRAM for nonvolatile storage

Compliance and labeling: RoHS3 compliant; Pb-free

Shipment form: Tray packaging (ideal for high-volume SMT)

Available quantity: 2541 units (subject to change; confirm on our website)

Lifecycle

Status: Active and widely used within the MSP430 FRAM family; not nearing discontinuation based on current information

Equivalents and alternatives:

- MSP430FR6979 (same family; commonly referenced variant; check exact package code and pinout)

- MSP430FR6989 (FRAM MCU with LCD-E, higher feature integration; verify memory and I/O differences)

- MSP430FR6959 (FRAM MCU with LCD-E, lower FRAM capacity; check compatibility)

- MSP430FR5949 / MSP430FR5969 (FRAM MCUs without LCD; suitable if LCD driver is not required)

- MSP430FR4133 (FRAM MCU with LCD for smaller displays; lower pin count alternatives)

- MSP430F5xx series (Flash-based MSP430 alternatives if FRAM is not a requirement)

- MSP432P401R (32-bit ARM-based TI MCU for higher performance needs; different architecture)

Important notes: Pin compatibility, memory sizes, and peripheral sets vary across the above parts. For a drop-in replacement, verify the exact package, pinout, and features. If you need precise cross references or last-time-buy status, contact our sales team via the Y-IC website for current guidance.

Key Application Areas

Battery-powered handheld instruments and data loggers

Smart meters and utility metering with LCD displays

Portable medical and wellness devices

Wearables and fitness trackers

Building automation controls and thermostats

Industrial sensor nodes and HMI panels

Environmental monitoring and asset tracking

Consumer electronics with segmented LCD interfaces

Low-power IoT endpoints requiring fast nonvolatile data storage

Datasheet

Y-IC provides the most authoritative datasheet for this product model on our website. For full electrical, timing, memory, and pinout specifications, download the datasheet from this page now to ensure accurate design and validation.

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