MSP430F5342IRGZR

Product Overview

The MSP430F5342IRGZR is a Texas Instruments ultra-low-power 16-bit MSP430 microcontroller operating at up to 25 MHz. It integrates 128 KB Flash memory, 10 KB SRAM, a 12-bit SAR ADC, analog comparator, three-channel DMA, hardware multiplier, four 16-bit timers, two USCI modules, and an RTC with alarm functionality.

The device combines a 16-bit RISC architecture with an integrated LDO, flexible clock system, multiple low-power modes, and fast wake-up. It is designed for portable measurement equipment, sensor systems, industrial monitoring, data acquisition, and other battery-powered embedded applications. TI lists the MSP430F5342IRGZR as ACTIVE, with a 48-pin VQFN package and -40°C to +85°C operating temperature range.

Key Features

• 16-bit MSP430 RISC architecture

• Maximum system clock frequency up to 25 MHz

• 128 KB Flash memory

• 10 KB SRAM

• 38 GPIO pins

• 12-bit SAR ADC

• 7 ADC channels

• Internal ADC reference

• Sample-and-hold and autoscan functionality

• Integrated analog comparator

• Three-channel internal DMA

• 32-bit hardware multiplier

• Four 16-bit timer modules

• Two USCI modules

• Enhanced UART with automatic baud-rate detection

• IrDA encoder and decoder

• SPI communication

• I²C communication

• RTC with alarm functionality

• Integrated programmable LDO

• Supply-voltage supervision and brownout detection

• Five low-power operating modes

• Standby wake-up in approximately 3.5 µs

• Supply voltage from 1.8 V to 3.6 V

• VQFN-48 package

Technical Specifications

The exact-part information is based on Texas Instruments' official MSP430F5342IRGZR product page and packaging data.

Processor & Architecture

The MSP430F5342IRGZR uses a 16-bit MSP430 RISC architecture with 16-bit registers, a constant generator, and extended memory addressing. The system clock operates at up to 25 MHz.

The integrated digitally controlled oscillator and unified clock system allow the device to transition rapidly from low-power modes to active operation. TI specifies a typical wake-up time from standby of approximately 3.5 µs.

Memory & Storage

The MSP430F5342 provides:

• 128 KB Flash memory

• 10 KB SRAM

• Extended-memory architecture

• Serial onboard programming

• No external programming voltage required

• Full RAM retention in selected low-power modes

The large Flash capacity provides sufficient space for embedded firmware, application code, lookup tables, communication stacks, and data-processing functions.

Analog Peripherals

The MSP430F5342 integrates a high-performance 12-bit SAR ADC with internal reference, sample-and-hold, and autoscan functionality.

Key analog resources include:

• 12-bit ADC

• 7 ADC input channels

• Internal voltage reference

• Sample-and-hold

• Autoscan functionality

• Integrated analog comparator

These analog functions make the device suitable for sensor measurement, analog monitoring, industrial instrumentation, and low-power data acquisition.

Timer & PWM Resources

The MSP430F5342 includes four 16-bit timer modules:

• Timer_A TA0 with five capture/compare registers

• Timer_A TA1 with three capture/compare registers

• Timer_A TA2 with three capture/compare registers

• Timer_B TB0 with seven capture/compare shadow registers

The timers support event capture, output compare, periodic interrupts, timing generation, and PWM functions.

Communication & Connectivity

The MSP430F5342 provides two Universal Serial Communication Interface modules.

Communication resources include:

• Two enhanced UART interfaces

• Automatic UART baud-rate detection

• IrDA encoder and decoder

• Synchronous SPI

• Two I²C interfaces

• Multiple SPI channels

These interfaces allow the MCU to connect to sensors, displays, memory devices, converters, communication modules, and other embedded peripherals.

Clock & Power Management

The MSP430F5342 uses a Unified Clock System with multiple clock sources:

• Frequency-locked loop (FLL)

• Digitally controlled oscillator

• Very-low-power oscillator (VLO)

• Low-frequency trimmed reference oscillator (REFO)

• 32 kHz crystal support through XT1

• High-frequency crystal support through XT2 up to 32 MHz

The device also integrates an LDO with programmable regulated core supply voltage, supply-voltage supervision, monitoring, and brownout protection.

Low-Power Operation

The MSP430F5342 is designed for extended battery life and supports multiple low-power operating modes.

Typical TI specifications include:

• Active mode: 290 µA/MHz at 8 MHz, 3 V, Flash execution

• Active mode: 150 µA/MHz at 8 MHz, 3 V, RAM execution

• LPM3 with RTC and crystal: approximately 2.1 µA at 3 V

• LPM3 with VLO: approximately 1.4 µA at 3 V

• LPM4: approximately 1.1 µA at 3 V

• LPM4.5 shutdown: approximately 0.18 µA at 3 V

• Wake-up from standby: approximately 3.5 µs

Power Management

The MSP430F5342 operates from a supply-voltage range of 1.8 V to 3.6 V.

Power-management features include:

• Integrated LDO

• Programmable regulated core supply voltage

• Supply-voltage supervision

• Brownout detection

• Multiple low-power modes

• Fast wake-up

• RAM retention

• Flexible clock management

These features help reduce energy consumption while maintaining rapid response to system events.

Security & Data Integrity

The MSP430F5342 provides device-level security and reliability functions including:

• Secure debug support

• Serial onboard programming

• Supply-voltage monitoring

• Brownout detection

• Watchdog timer

• Flash-based nonvolatile program storage

• Hardware multiplier

These functions support reliable embedded firmware execution, programming, and system monitoring.

Development & Debugging

The MSP430F5342 supports development through the Texas Instruments MSP430 development ecosystem.

Development features include:

• On-chip debugging

• Serial onboard programming

• Secure debug functionality

• Three-channel DMA

• Hardware multiplier

• Integrated RTC

• TI MSP430 software and development tools

The device can be programmed without requiring an external programming voltage.

Applications

The MSP430F5342IRGZR is suitable for:

• Portable measurement equipment

• Sensor systems

• Industrial monitoring

• Data acquisition

• Battery-powered instrumentation

• Energy monitoring

• Analog measurement systems

• Embedded controllers

• Environmental monitoring

• Industrial sensor interfaces

• Low-power communication systems

• Consumer electronics

The combination of high Flash capacity, ADC, DMA, timers, serial interfaces, and low-power modes makes the device suitable for applications requiring extended battery operation and integrated mixed-signal processing.

Benefits

• 25 MHz 16-bit MSP430 performance

• 128 KB Flash memory

• 10 KB SRAM

• Integrated 12-bit ADC

• Integrated comparator

• Three-channel DMA

• 32-bit hardware multiplier

• Four 16-bit timers

• UART, SPI and I²C connectivity

• Integrated RTC

• Ultra-low-power operation

• Fast wake-up

• Integrated LDO and power supervision

• Compact VQFN-48 package

Packaging & Ordering Information

• Part Number: MSP430F5342IRGZR

• Manufacturer: Texas Instruments

• Device Family: MSP430F5342

• Package: 48-pin VQFN

• Package Code: RGZ

• Package Quantity: 2,500 per large tape and reel

• Supply Voltage: 1.8 V to 3.6 V

• Operating Temperature: -40°C to +85°C

• Product Status: ACTIVE

Datasheet

For complete electrical characteristics, pin configuration, memory architecture, ADC specifications, timer configuration, communication interfaces, absolute maximum ratings, and application information, please refer to the official Texas Instruments documentation.

Datasheet: Official MSP430F5342 Datasheet

Frequently Asked Questions

1. What is the MSP430F5342IRGZR?
The MSP430F5342IRGZR is a Texas Instruments 25 MHz 16-bit MSP430 microcontroller with 128 KB Flash, 10 KB SRAM, a 12-bit ADC, DMA, timers, RTC, and UART/SPI/I²C connectivity.

2. What is the maximum operating frequency?
The MSP430F5342 operates at up to 25 MHz.

3. How much Flash memory does it have?
The device provides 128 KB of Flash memory.

4. How much RAM is available?
The MSP430F5342 provides 10 KB of SRAM.

5. What ADC is integrated?
The device integrates a 12-bit SAR ADC with internal reference, sample-and-hold, and autoscan functionality. TI lists seven ADC channels for the MSP430F5342.

6. Does the MSP430F5342 support SPI and I²C?
Yes. The device supports synchronous SPI and I²C through its two USCI modules.

7. What is the operating temperature range?
The MSP430F5342IRGZR is specified for -40°C to +85°C.

8. What package is MSP430F5342IRGZR?
The MSP430F5342IRGZR is supplied in a 48-pin VQFN package with the RGZ package code. TI lists 2,500 units per large tape-and-reel carrier.

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