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MSP430F5438AIPZR

25MHz 16-bit MCU, 256KB Flash, 12-bit ADC, 4 USCI, 100-LQFP

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Manufacturer Part：

MSP430F5438AIPZR

Package：

100-LQFP (PZ) (16.0 x 16.0 x 1.4 mm)

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Description

Product Overview

The MSP430F5438AIPZR from Texas Instruments is a 25MHz ultra-low-power 16-bit MCU with 256KB Flash and 16KB SRAM in a 100-LQFP package. It features a 12-bit ADC, 4 USCI modules (UART/SPI/I2C), hardware multiplier, DMA, and RTC for portable measurement applications.

Key Specifications

Core MSP430 16-bit RISC
Max Frequency 25MHz
Flash 256KB
RAM 16KB
ADC 12-bit SAR, 14 external + 2 internal channels
USCI Modules 4 (UART/SPI/I2C)
GPIO 87
Supply Voltage 1.8V ~ 3.6V
Package 100-LQFP (16 x 16mm)
Operating Temperature -40°C to +85°C

Features

  • Ultra-low-power: 230uA/MHz active, 2.1uA standby, 0.1uA shutdown
  • 256KB Flash + 16KB SRAM
  • 4 USCI modules (8 total interfaces: 4x UART/SPI, 4x I2C/SPI)
  • 12-bit ADC with internal reference and autoscan
  • Hardware multiplier supporting 32-bit operations
  • 3-channel DMA and RTC with alarm

Applications

  • Portable measurement instruments
  • Digital motor control
  • Remote controls and thermostats
  • Hand-held meters and data loggers
  • Sensor systems and industrial control

The MSP430F5438AIPZR from Texas Instruments is an ultra-low-power 16-bit microcontroller from the MSP430F5xx family, optimized for portable measurement and industrial applications. It features 256KB Flash, 16KB SRAM, and a 25MHz CPU. Four USCI modules provide up to 8 independent communication interfaces (4 UART/IrDA/SPI + 4 I2C/SPI). The 12-bit SAR ADC with 14 external channels and internal reference handles precision measurement. A hardware multiplier supports 32-bit operations, and 3-channel DMA reduces CPU overhead. Active mode draws 230uA/MHz at 3.0V, while standby with RTC is only 2.1uA.

The MSP430F5438AIPZR is based on a 16-bit RISC CPU with 27 core instructions and 7 addressing modes for efficient code density. The unified clock system (UCS) uses an FLL to multiply a 32kHz crystal up to 25MHz, with VLO and REFO as internal clock sources. The DCO enables 3.5us wakeup from standby. Each USCI module has independent baud-rate generators and supports simultaneous UART/SPI or I2C/SPI operation. The ADC12 uses a sample-and-hold with programmable timing, and autoscan sequences multiple channels without CPU intervention. The DMA controller handles memory-to-memory and peripheral-to-memory transfers autonomously.

Pin Group Count Function
GPIO (Port 1-11) 87 General-purpose I/O (multiplexed with peripherals)
ADC12 inputs 14 Analog inputs (A0-A13)
USCI (4 modules) 16 UART/SPI/I2C data and clock pins
Timer I/O 15 Timer_A0/TA1/TB0 capture/compare/PWM
Power 8 DVCC, AVCC, DVSS, AVSS, VCORE
Debug 2 SBW (Spy-Bi-Wire) / JTAG
Reset/Clock 4 RST/NMI, XIN/XOUT, XT1/XT2
  • Portable data acquisition and measurement instruments
  • Digital motor control with sensor feedback
  • Remote control and thermostat systems
  • Hand-held multimeters and energy meters
  • Industrial sensor networking nodes
Manufacturer Part Number Package Notes
TI MSP430F5438IPZR 100-LQFP Original version, 18MHz
TI MSP430F6438IPZR 100-LQFP LCD driver version
TI MSP430F5435AIPZR 100-LQFP 128KB Flash, lower cost
Renesas RL78/G14 R5F104LEA 100-LQFP 16-bit low-power alternative
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Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Shipping & Payment

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Service & Packaging

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

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