Texas Instruments MSP430F5341IRGZT

Overview

MSP430F5341IRGZT from Texas Instruments is a 16-bit ultra-low-power mixed-signal microcontroller featuring 96 KB flash, 8 KB RAM, four 16-bit timers (including Timer_A with five capture/compare registers and Timer_B with seven), dual USCI modules supporting UART/IrDA/SPI/I²C, 12-bit ADC with autoscan and internal reference, and RTC functionality. 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 MSP430F5341IRGZT datasheet, MSP430F5341IRGZT pinout, MSP430F5341IRGZT application, or MSP430F5341IRGZT equivalent, this page delivers verified functional identity, validated 48-pin VQFN package mapping, confirmed low-power mode timing (3.5 µs wake-up), exact peripheral register counts, and two technically documented alternative parts for sensor interface and RTOS-capable embedded designs.

Technical Context

The MSP430F5341IRGZT implements the CPUXV2 core with 16-bit RISC architecture, constant generator, and 32-bit hardware multiplier - enabling efficient C execution in ultra-low-power environments. Its unified clock system integrates FLL-based frequency stabilization, dual crystal oscillators (XT1 up to 32 kHz, XT2 up to 32 MHz), and low-power internal sources (VLO, REFO).

Power management includes a fully integrated LDO with programmable core voltage (PMMCOREVx = 0–3), supply voltage supervision (SVS/SVM), brownout reset, and five low-power modes (LPM0–LPM4.5) with full RAM retention down to 0.18 µA in shutdown. Peripheral interconnect uses port mapping (PM) for flexible signal routing across 38 GPIO pins.

Key Specifications

Pinout & Package

VQFN-48 (RGZ) package, 7 mm × 7 mm, 0.5 mm pitch, with exposed thermal pad recommended to be connected to DVSS.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F5342IRGZT, the MSP430F5341IRGZT trades 32 KB flash and 2 KB RAM for cost-sensitive deployments while retaining identical low-power behavior and peripheral count; versus MSP430F6736IPZ, it offers broader interface flexibility (dual I²C) at the expense of metrology-grade ADC precision.

Availability

MSP430F5341IRGZT is available at Aetrix Electronics and suitable for environmental monitoring, industrial data logging, portable medical devices, and smart utility interface applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for MSP430F5341IRGZT 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 specializing in analog, embedded processing, and connectivity technologies, with decades of leadership in ultra-low-power microcontrollers.

The MSP430F534x product line was designed for battery-operated measurement systems demanding nanowatt-level standby, fast wake-up, and integrated analog peripherals - targeting sensor nodes, wearables, and industrial IoT endpoints.

FAQ

What is the maximum system clock frequency supported by the MSP430F5341IRGZT?

The MSP430F5341IRGZT supports up to 25 MHz MCLK when PMMCOREVx = 3 and VCC ≥ 2.4 V. At lower core voltages (e.g., PMMCOREVx = 0), the maximum frequency drops to 8 MHz. This scalable clock architecture allows designers to optimize performance versus power consumption based on real-time requirements - for example, running at 25 MHz during ADC burst sampling and scaling down to 1 MHz during idle periods to minimize active-mode current.

Does the MSP430F5341IRGZT include hardware support for I²C communication?

Yes, the MSP430F5341IRGZT includes two USCI modules (USCI_B0 and USCI_B1), each capable of full-duplex I²C master/slave operation. USCI_B0 uses P3.0 (SDA) and P3.1 (SCL) by default, while USCI_B1 maps to P4.1 (SDA) and P4.2 (SCL). Both modules support standard (100 kbps) and fast (400 kbps) modes, automatic clock stretching, and 7-bit/10-bit addressing - enabling direct connection to temperature, humidity, or accelerometer sensors without external level shifters.

How many analog input channels does the 12-bit ADC in the MSP430F5341IRGZT support?

The MSP430F5341IRGZT's ADC12_A module supports nine total input channels: seven external analog inputs (A0–A6 mapped to P6.x/P5.x pins) and two internal sources (temperature sensor and VMID). The autoscan feature allows sequential conversion of any subset of these channels without CPU intervention, making it ideal for multi-sensor systems like air quality monitors where CO₂, VOC, and humidity must be sampled in rapid succession.

What debug interface does the MSP430F5341IRGZT use, and how many pins are required?

The MSP430F5341IRGZT supports Spy-Bi-Wire (SBW) debug via the RST/NMI/SBWTDIO and TEST/SBWTCK pins - requiring only two physical connections for full JTAG-equivalent programming and real-time debugging. This minimizes PCB routing overhead compared to 4-wire JTAG and is compatible with TI's MSP-FET and LaunchPad development tools. SBW operates at up to 4 MHz and supports flash breakpoints, register inspection, and live variable watch.

Is the MSP430F5341IRGZT pin-compatible with other members of the MSP430F534x family?

Yes, the MSP430F5341IRGZT shares identical 48-pin VQFN (RGZ) packaging, pinout, and peripheral mapping with MSP430F5342IRGZT and MSP430F5340IRGZT. All three devices use the same footprint, thermal pad layout, and signal assignments - allowing direct substitution in production for memory-scaling decisions (64 KB → 96 KB → 128 KB flash) without PCB revision or firmware changes beyond linker script updates.