MSP430F5438IPZ - 25MHz, 256KB MCU with 12-bit ADC | TI
部品番号: MSP430F5438IPZ ✓ 生産中MSP430F5438IPZ 概要
A microcontroller is a programmable integrated circuit that combines a CPU, memory, peripherals, and I/O in one device. The MSP430 family uses a 16-bit RISC architecture with 16-bit registers and constant generators, supporting efficient control and signal-processing workloads. The MSP430F5438 belongs to the MSP430F5xx family of mixed-signal MCUs, combining digital control with analog measurement and low-power operating modes.
Key features include 256 KB of flash, 16 KB of SRAM, a 12-bit ADC, a hardware multiplier, DMA, four USCI peripherals, timers, and a real-time clock. The device is suitable for industrial instrumentation, sensor acquisition, low-power embedded control, communications, and signal-processing applications. Its 14 x 14 mm 100-LQFP package provides a conventional surface-mount footprint with numerous external peripheral connections.
The MSP430F5438 product page identifies a 25 MHz operating speed and 256 KB flash, while the MSP430F5438IPZ distributor listing specifies the 100-LQFP (14 x 14) package and 16-bit MCU architecture. The mixed-signal design allows firmware to acquire analog inputs and control digital peripherals without requiring separate analog or communications devices.
Typical designs use the ADC for sensor and analog signal measurement, UART or SPI for external devices, I2C for sensors and memory, DMA for efficient peripheral transfers, and timers for precise event control. The MSP-EXP430F5438 experimenter-board ecosystem provides a relevant development context, while the MSP430 hardware tools user guide is identified as a reference for supported target devices.
When designing a board around this MCU, verify the exact pin functions, power requirements, clock configuration, and peripheral multiplexing in the MSP430F5438 datasheet. Place decoupling close to the power pins and route sensitive analog inputs away from high-current switching nodes. The verified distributor listing identifies an 18 MHz CPU entry, while the manufacturer product page identifies a 25 MHz MCU; these values should be reconciled against the exact device revision and operating conditions before release.
This page synthesizes verified manufacturer and distributor specifications, package information, application guidance, and procurement references for engineers evaluating the MSP430F5438IPZ.
ドロップイン代替品: MSP430F5438IPZ — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: MSP430F5438IPZ （同一形状・フットプリント） — 相違点: Hardware Multiplier, Package, CPU Architecture, RoHS Status, Timers.
MSP430F5438AIPZ
✅ ドロップイン価格はお問い合わせください
データシートを見る →MSP430F5438IPZR
✅ ドロップイン価格はお問い合わせください
データシートを見る →MSP430F5438AIZQWT
✅ ドロップイン価格はお問い合わせください
データシートを見る →MSP430F5636IPZ
✅ ドロップイン📋 参考代替品（カタログ未掲載）
MSP430F1491IPMG4
✅ ドロップイン価格はお問い合わせください
データシートを見る →MSP430F5438IPZ 最大定格＆電気的特性
| Product Type | 16-bit ultra-low-power mixed-signal microcontroller |
| CPU Architecture | MSP430 16-bit RISC |
| Manufacturer-Reported Maximum Frequency | 25 MHz |
| Distributor-Reported CPU Frequency | 18 MHz |
| Flash Memory | 256 KB |
| SRAM | 16 KB |
| ADC Resolution | 12-bit |
| Hardware Multiplier | 32-bit hardware multiplier |
| DMA | Supported |
| Serial Communications | UART, SPI, and I2C |
| USCI Peripherals | 4 USCIS |
| Timers | 16-bit timer resources |
| Real-Time Clock | Supported |
| Low-Power Modes | Five power-saving modes |
| RAM-Retention Off Current | 0.1 µA |
| Wake-Up from Standby | Less than 6 µs |
| パッケージ | 100-LQFP (14 x 14 mm) |
| 実装タイプ | Surface mount |
| DigiKey Availability Statement | Buy now, ships today |
MSP430F5438IPZ 100-lqfp (14 x 14 mm) ピン配置ガイド
MSP430F5438IPZ (100-lqfp (14 x 14 mm) パッケージ) のピン配置。 このアナログコンポーネントは、入力、出力、および電源ピンを備えています。オフセットナル、補償、イネーブルピンの設定については、メーカーのデータシートを参照してください。信号調整やアンプ回路に最適です。
詳細なピン配置データはありません: MSP430F5438IPZ.
詳細は データシート をご参照ください。
主な用途
MSP430F5438IPZ の用途: 6 件s: Industrial Sensor Controller, Low-Power Data Logger, Communications Gateway, Portable Measurement Instrument, Digital Control System, Embedded Industrial Motor Controller.
Industrial Sensor Controller
The MSP430F5438IPZ is a strong fit for an industrial sensor controller because its 12-bit ADC can acquire analog sensor signals while its 256 KB flash and 16 KB SRAM support application code, calibration data, and working buffers. UART, SPI, and I2C allow the controller to connect to sensors, memory, or downstream equipment without requiring separate interface devices. DMA can move peripheral data with less CPU involvement, while five power-saving modes support duty-cycled measurements. The design must still verify ADC input range, reference accuracy, sampling timing, noise behavior, and isolation requirements.
おすすめ
Low-Power Data Logger
For a low-power data logger, the MSP430F5438IPZ combines 256 KB flash for firmware and data structures with 16 KB SRAM for acquisition buffers. Its low-power modes, 0.1 µA RAM-retention off current, and standby wake-up below 6 µs enable periodic wake, measurement, processing, and sleep cycles. SPI or I2C can interface with external flash or sensors, while the 12-bit ADC supports analog monitoring. Battery-life calculations must include sensor standby current, regulator quiescent current, wake duration, and radio activity rather than the MCU specification alone.
おすすめ
Communications Gateway
MSP430F5438IPZ can serve as the control processor in a communications gateway because it provides four USCI peripherals and documented UART, SPI, and I2C support. The gateway can bridge a local sensor network to an Ethernet or wireless module while using DMA for efficient transfers. Its 25 MHz manufacturer-described MCU class and 256 KB flash provide capacity for protocol handling and firmware, while low-power modes can reduce consumption during idle periods. Pin multiplexing, baud-rate requirements, buffer depth, isolation, and EMC margins should be checked before finalizing the interface architecture.
おすすめ
Portable Measurement Instrument
The MSP430F5438IPZ suits portable measurement instruments that combine analog acquisition, local control, and low-power operation. The 12-bit ADC provides a direct sensing path, while the 16-bit MSP430 CPU and hardware multiplier can process control and measurement tasks. UART, SPI, and I2C permit connection to displays, calibration storage, or external converters. Its standby wake-up time below 6 µs supports responsive push-button or timer-driven operation. For precision measurements, evaluate input impedance, sample-and-hold behavior, reference-voltage drift, calibration, and PCB analog-noise coupling.
おすすめ
Digital Control System
MSP430F5438IPZ is appropriate for embedded digital control because it combines a 16-bit RISC core, timers, DMA, a hardware multiplier, and mixed-signal peripherals. Timers can establish control-loop timing, while ADC inputs provide feedback and PWM or digital outputs can drive actuators through external drivers. The 256 KB flash supports control code and parameter storage, and the LQFP package exposes the required I/O in a conventional 100-pin footprint. Validate loop timing, output settling, watchdog behavior, fault handling, and thermal performance under the worst-case actuator and ambient conditions.
おすすめ
Embedded Industrial Motor Controller
The MSP430F5438IPZ can control embedded industrial motor systems when the design needs local timing, sensor feedback, and communications in one MCU. Its timers support deterministic event handling, the ADC supports current or position feedback, and UART, SPI, and I2C connect to position sensors, gate drivers, or supervisory controllers. DMA may reduce interrupt load when moving captured data. The 100-LQFP package provides many external signals, but motor systems require careful isolation, gate-driver timing, current sensing, overcurrent protection, thermal design, and PCB creepage and clearance verification.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: MSP430F5438IPZ — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | MSP430F5438AIPZ | MSP430F5438IPZR | MSP430F5636IPZ |
|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 100-LQFP (14 x 14 mm) | 100-LQFP (14 x 14 mm) - verify exact package | 100-LQFP (14 x 14 mm) | 100-LQFP (14 x 14 mm) - verify exact package |
主な差別化要因
- Large embedded code and data memory in a low-power 16-bit MCU （vs MSP430F1491IPMG4)
- Integrated mixed-signal acquisition （vs MSP430F5636IPZ)
- Documented low-power wake behavior （vs MSP430F5438AIPZ)
- Established 100-LQFP package identity （vs MSP430F5438IPZR)
設計ノート
Estimated: no power-loss calculation can be produced because the verified data does not provide supply voltage, active current, peripheral loading, or CPU duty cycle. During design, measure the complete operating modes and include regulator efficiency, ADC sampling energy, serial-interface activity, and wake-up timing in the power budget. Use the manufacturer’s current-consumption specifications for the final operating-frequency and voltage conditions rather than extrapolating from the 0.1 µA RAM-retention figure alone.
Place required decoupling capacitors close to the MSP430F5438IPZ power pins and provide a low-impedance ground return. Route 12-bit ADC inputs away from switching nodes, high-current motor paths, and digital clocks. Because the target uses a 100-LQFP package, verify the recommended land pattern and exposed thermal requirements from the manufacturer package drawing before fabrication. ESD protection, series resistance, and analog filtering should be placed where they protect the sensor input without introducing excessive leakage or timing error.
Validate the clock, debug, programming, UART, SPI, and I2C nets with the intended PCB stack-up and peripherals enabled. The device supports fast control and communication functions, but edge rates, capacitance, and interrupt timing still depend on routing and loading. Keep sensitive analog and clock routes away from noisy power stages, use continuous reference planes where practical, and confirm reset and debug behavior in hardware. The verified data does not supply complete pinout or timing tables, so the datasheet is required for final constraints.
Do not treat the MSP430F5438 product-page 25 MHz description and the MSP430F5438IPZ distributor 18 MHz listing as interchangeable without checking the exact device ordering and operating conditions. Also do not assume that an IPZ suffix, replacement candidate, or same-family part preserves pin compatibility. Review memory maps, interrupt vectors, peripheral multiplexing, voltage levels, startup behavior, package dimensions, and tool support before replacing a design. Compliance status also requires a current manufacturer declaration rather than an availability-page assumption.
コンプライアンス情報
The verified web snippets do not explicitly provide compliance declarations for MSP430F5438IPZ. Obtain current Texas Instruments product and material-compliance documentation for the exact ordering code.
