Texas Instruments MSP430F5239IZQER

Overview

MSP430F5239IZQER from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring 128 KB flash, 8 KB RAM, four 16-bit timers (TA0/TA1/TA2/TB0), two USCI modules (UART/IrDA/SPI/I²C), RTC, hardware multiplier, DMA, and comparator. It operates from 1.8 V to 3.6 V and targets battery-powered sensor nodes and data loggers requiring sub-2 µA standby current.

For engineers reviewing the MSP430F5239IZQER datasheet, MSP430F5239IZQER pinout, MSP430F5239IZQER application, or MSP430F5239IZQER equivalent, key selection criteria include LPM3 current (1.9 µA), wake-up time (3.5 µs), absence of integrated ADC, BGA-80 package compatibility, and peripheral set alignment with legacy MSP430F5xx designs.

Technical Context

The MSP430F5239IZQER implements a 16-bit RISC CPUXV2 core with constant generators and unified clock system including FLL, VLO, REFO, XT1 (32 kHz), and XT2 (up to 32 MHz). Its power management includes programmable LDO, SVS/SVM, and brownout reset - enabling stable operation across voltage scaling and low-power modes.

It supports full RAM retention in LPM3/LPM4, fast wakeup via multiple interrupt sources (I/O, timer, RTC, USCI), and JTAG/SBW debugging. Unlike the F524x series, it omits the 10-bit ADC10_A module but retains identical timer count, USCI count, comparator channels (8), and I/O count (53) in ZQE package.

Key Specifications

Pinout & Package

Package: 80-pin MicroStar Junior™ BGA (ZQE), 5 mm × 5 mm, 0.5 mm pitch, thermal pad grounded per TI recommendation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F5237IZQER, the MSP430F5239IZQER provides double flash for complex firmware or bootloader + application separation; versus MSP430F5249IZQER, it removes ADC overhead and leakage, improving LPM stability in noise-sensitive analog environments.

Availability

MSP430F5239IZQER is available at Aetrix Electronics and suitable for smart metering, industrial data logging, and portable medical monitoring requiring stable component supply, long-lifecycle support, and qualified BGA sourcing.

Supply support for MSP430F5239IZQER 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 for industrial, automotive, and personal electronics markets.

The MSP430F523x series is designed for ultra-low-power sensing and control applications where extended battery life, deterministic real-time response, and robust peripheral integration outweigh raw computational throughput.

FAQ

What is the maximum system clock frequency supported by the MSP430F5239IZQER?

The MSP430F5239IZQER supports up to 25 MHz system clock frequency via its integrated FLL-controlled DCO or external XT2 crystal oscillator (up to 32 MHz). This enables high-speed peripheral operation and efficient instruction execution while maintaining ultra-low-power architecture benefits.

Does the MSP430F5239IZQER include an integrated analog-to-digital converter (ADC)?

No, the MSP430F5239IZQER does not include an integrated ADC. It belongs to the MSP430F523x series, which explicitly excludes the ADC10_A module present in the F524x series. Applications requiring analog digitization must use external ADCs or select F524x variants like MSP430F5249IZQER.

What debug interface does the MSP430F5239IZQER support?

The MSP430F5239IZQER supports Spy-Bi-Wire (SBW) via TEST/SBWTCK and PJ.0–PJ.3 pins, a 2-wire subset of JTAG. It is fully compatible with TI's MSP-FET debugger and Code Composer Studio, enabling full flash programming, breakpoint setting, and real-time variable inspection without requiring 4-wire JTAG headers.

How many I/O pins are available on the MSP430F5239IZQER in the ZQE package?

The MSP430F5239IZQER provides 53 general-purpose I/O pins in the 80-pin ZQE package, distributed across Ports P1–P7 and PJ. Pin functions are multiplexed with peripherals including timers, USCI, RTC, and comparator, allowing flexible board-level resource allocation without external glue logic.

Is the MSP430F5239IZQER pin-compatible with other devices in the MSP430F52xx family?

Yes, the MSP430F5239IZQER shares identical pinout and electrical characteristics with MSP430F5237IZQER, MSP430F5249IZQER, and MSP430F5247IZQER in the ZQE (80-pin) package. This enables hardware reuse across firmware variants and functional tiers within the same PCB design.