MSP430F5438AIPZR

Product Overview

The MSP430F5438AIPZR from Texas Instruments is a high-performance, ultra-low-power 16-bit MSP430 microcontroller operating at up to 25 MHz. It integrates 256KB of Flash memory, 16KB of SRAM, a 12-bit SAR ADC, multiple timer modules, up to four USCI communication modules, DMA, a hardware multiplier, RTC functionality, and extensive GPIO resources.

The device operates from a 1.8V to 3.6V supply and is designed for applications requiring a combination of processing performance, large program memory, low power consumption, and flexible analog and communication peripherals.

Key Features

• 16-bit MSP430 RISC architecture

• Up to 25MHz system clock

• 256KB Flash memory

• 16KB SRAM

• 12-bit SAR ADC

• 14 external ADC channels plus 2 internal channels

• Up to 87 GPIOs

• Three 16-bit timer modules

• Up to four USCI communication modules

• UART, IrDA, SPI and I²C interfaces

• 32-bit hardware multiplier

• 3-channel internal DMA

• Real-time clock with alarm capability

• Flexible power-management system

• Integrated LDO

• Supply voltage monitoring and brownout protection

• Fast wake-up from low-power modes

• Secure debug support

Technical Specifications

TI lists the MSP430F5438A family as an ACTIVE 25MHz MCU with 256KB Flash, 16KB SRAM, 12-bit SAR ADC and 87 GPIOs. The exact MSP430F5438AIPZR ordering option is specified in the 100-pin PZ LQFP package with 1,000 pieces per Large Tape & Reel.

Processor & Architecture

The MSP430F5438AIPZR features a 16-bit RISC CPU with 16-bit registers and an extended memory architecture. The device supports system clock operation up to 25MHz and is optimized for efficient code execution and low-power embedded applications.

The digitally controlled oscillator enables fast transition from low-power operation to active operation, with typical wake-up from standby in approximately 3.5µs.

Memory & Storage

• 256KB Flash program memory

• 16KB SRAM

• Extended memory architecture

• Flash memory for nonvolatile application storage

• Serial onboard programming

• No external programming voltage required

• RAM retention supported in low-power modes

The large 256KB Flash capacity makes the device suitable for complex embedded firmware, data acquisition systems and applications requiring substantial program storage.

Analog Peripherals

The integrated 12-bit SAR ADC provides:

• 14 external analog input channels

• 2 internal ADC channels

• Internal voltage reference

• Sample-and-hold circuitry

• Autoscan functionality

• 12-bit conversion resolution

The ADC is suitable for sensor interfaces, industrial measurement, monitoring and embedded control applications.

Timer & PWM Resources

The MSP430F5438AIPZR integrates three 16-bit timer modules:

• Timer_A0 with five capture/compare registers

• Timer_A1 with three capture/compare registers

• Timer_B0 with seven capture/compare shadow registers

These timers support capture, compare, timing and PWM-related control functions for embedded applications.

Communication & Connectivity

The device supports up to four Universal Serial Communication Interfaces (USCIs).

USCI_A Interfaces

• Enhanced UART

• Automatic baud-rate detection

• IrDA encoder/decoder

• Synchronous SPI

USCI_B Interfaces

• I²C

• Synchronous SPI

TI lists the MSP430F5438A family with up to four UART resources, four I²C interfaces and eight SPI resources at the family/product level.

Clock & Power Management

The MSP430F5438AIPZR incorporates a unified clock system with:

• FLL frequency stabilization

• Low-power VLO clock source

• Trimmed REFO reference

• 32kHz crystal support

• High-frequency crystal support up to 32MHz

• Integrated LDO

• Programmable regulated core voltage

• Supply voltage supervision

• Brownout detection

These features allow designers to optimize clock operation and power consumption according to application requirements.

Low-Power Operation

The MSP430F5438AIPZR is designed for battery-powered and energy-sensitive applications.

Typical power specifications include:

• Active mode: 230µA/MHz at 8MHz, 3.0V, Flash execution

• Active mode: 110µA/MHz at 8MHz, 3.0V, RAM execution

• LPM3 with RTC crystal: 1.7µA at 2.2V and 2.1µA at 3.0V

• LPM3 with VLO: 1.2µA at 3.0V

• LPM4: 1.2µA at 3.0V

• LPM4.5: 0.1µA at 3.0V

• Typical wake-up time: 3.5µs

Power Management

The integrated power-management system provides:

• 1.8V to 3.6V operating supply range

• Integrated LDO

• Programmable regulated core voltage

• Supply voltage supervision

• Brownout protection

• Multiple low-power operating modes

• RAM retention during low-power operation

These capabilities help extend battery life while maintaining rapid system wake-up performance.

Security & Data Integrity

The MSP430F5438AIPZR includes embedded security and data-integrity features such as:

• Secure debug functionality

• Code protection mechanisms

• Hardware multiplier

• CRC support

• Supply supervision

• Brownout detection

The 32-bit hardware multiplier accelerates arithmetic operations commonly used in signal processing and control applications.

Development & Debugging

The device supports:

• Serial onboard programming

• JTAG development and debugging

• Spy-Bi-Wire debugging

• Secure debug capability

• Integrated Flash programming

• MSP430 development ecosystem

The MSP430 architecture is supported by Texas Instruments development tools and software for embedded applications.

Applications

The MSP430F5438AIPZR is suitable for:

• Industrial automation

• Data acquisition

• Sensor systems

• Portable measurement equipment

• Metering equipment

• Energy monitoring

• Embedded control systems

• Industrial instrumentation

• Battery-powered equipment

• Communication interfaces

• Consumer electronics

• Medical and measurement equipment

Its combination of large Flash memory, SRAM, ADC, DMA, timers and communication interfaces makes it suitable for complex mixed-signal embedded systems.

Benefits

• Large 256KB Flash capacity

• 16KB integrated SRAM

• 25MHz 16-bit processing

• Low-power architecture

• 12-bit ADC with multiple analog channels

• Up to 87 GPIOs

• Multiple UART, SPI and I²C interfaces

• Integrated DMA reduces CPU overhead

• Hardware multiplier improves arithmetic performance

• Integrated RTC

• Wide 1.8V to 3.6V supply range

• 100-pin LQFP package for high-I/O applications

Packaging & Ordering Information

• Part Number: MSP430F5438AIPZR

• Manufacturer: Texas Instruments

• Device Family: MSP430F5438A

• Package: 100-pin LQFP

• Package Code: PZ

• Package Size: 16mm × 16mm

• Package Quantity: 1,000 per Large Tape & Reel

• Supply Voltage: 1.8V to 3.6V

• 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 MSP430F5438A Datasheet

Frequently Asked Questions

Q: What is the MSP430F5438AIPZR?
A: The MSP430F5438AIPZR is a Texas Instruments 16-bit MSP430 microcontroller operating up to 25MHz with 256KB Flash, 16KB SRAM, a 12-bit ADC and multiple communication interfaces.

Q: How much Flash memory does the MSP430F5438AIPZR have?
A: It provides 256KB of Flash memory.

Q: How much RAM does the MSP430F5438AIPZR have?
A: The device integrates 16KB of SRAM.

Q: What package does the MSP430F5438AIPZR use?
A: It uses a 100-pin LQFP package with the PZ package code.

Q: What is the operating voltage?
A: The operating supply range is 1.8V to 3.6V.

Q: Does the MSP430F5438AIPZR support UART, SPI and I²C?
A: Yes. The MSP430F5438A family supports UART, SPI and I²C communication through its USCI peripherals.

Q: What ADC is included?
A: The device includes a 12-bit SAR ADC with 14 external channels and 2 internal channels.

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