MSP430F157IPM - 8MHz 32KB Flash Mixed-Signal MCU | Texas Instruments
部品番号: MSP430F157IPM ✓ 生産中MSP430F157IPM 概要
A mixed-signal microcontroller combines a digital processor and analog conversion peripherals in one package. In the MSP430 product hierarchy, MSP430F157IPM is a mixed-signal MCU, placing analog measurement and signal generation alongside a low-power 16-bit processor. This integration allows a compact instrument to acquire sensor signals and produce controlled analog outputs without requiring separate converters.
The principal features include an 8 MHz maximum clock, 32 KB of flash program memory, 1 KB of SRAM, a 12-bit ADC, two 12-bit DAC channels, and a comparator. A direct-memory-access controller supports efficient peripheral transfers, while I2C, SPI, and UART interfaces connect the MCU to sensors, displays, data loggers, and external converters. The MSP430 architecture also provides multiple low-power operating modes for battery-powered measurement systems.
The 16-bit RISC CPU uses a reduced instruction set designed for efficient control and measurement workloads. Its 16-bit registers and word-oriented architecture are well suited to handling ADC results, timers, control loops, and communication buffers. Peripheral integration allows designers to avoid duplicating conversion circuitry while retaining a compact firmware-driven signal chain.
Typical uses include portable environmental monitoring, industrial sensor acquisition, precision control, battery-powered instruments, communications equipment, and compact data-acquisition systems. The ADC supports analog measurement, the dual DACs support excitation or output control, and the serial interfaces support expansion to external sensors and digital peripherals. The 64-pin LQFP package also provides a conventional surface-mount format with a generous pin count for analog, power, and digital signals.
When laying out the PCB, keep analog inputs short, maintain a clean return path around the ADC and DAC circuitry, and place bypass capacitors close to the supply pins. Confirm the exact pin assignments and exposed-power requirements against the manufacturer datasheet before routing. This page consolidates the device’s key specifications, application guidance, and drop-in replacement considerations for faster engineering review and sourcing.
ドロップイン代替品: MSP430F157IPM — 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: MSP430F157IPM （同一形状・フットプリント） — 相違点: Package, Comparator, SRAM, ADC Resolution, CPU Architecture.
MSP430F156IPM
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
MSP430F158IPM
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
MSP430F161IPM
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
MSP430F167IPM
✅ ドロップイン ⚠️ 仕様未検証価格はお問い合わせください
データシートを見る →MSP430F168IPM
✅ ドロップイン ⚠️ 仕様未検証価格はお問い合わせください
データシートを見る →MSP430F157IPM 最大定格＆電気的特性
| Product Type | Mixed-Signal Microcontroller |
| CPU Architecture | 16-Bit RISC |
| Maximum Clock Speed | 8 MHz |
| Flash Memory | 32 KB |
| SRAM | 1 KB |
| ADC Resolution | 12 bit |
| DAC Resolution | 12 bit |
| DAC Channel Count | 2 channels |
| Comparator | 1 comparator |
| DMA | Available |
| Serial Interfaces | I2C, SPI, UART |
| Supply Voltage Range | 1.8 V to 3.6 V |
| I/O Port Count | 22 |
| パッケージ | 64-LQFP (PM), 10 mm x 10 mm |
| Temperature Grade | Industrial |
| ライフサイクル状態 | Active |
| Low-Power Modes | 5 low-power modes |
| 実装タイプ | Surface Mount |
MSP430F157IPM 64-lqfp (pm), 10 mm x 10 mm ピン配置ガイド
MSP430F157IPM (64-lqfp (pm), 10 mm x 10 mm パッケージ) のピン配置。 このデジタルICには、GPIO、通信インターフェース (UART、SPI、I2C)、および電源ピンが含まれています。代替ピン機能と設定オプションについては、メーカーのデータシートを参照してください。組み込みシステム設計とPCBレイアウトに不可欠です。
詳細なピン配置データはありません: MSP430F157IPM.
詳細は データシート をご参照ください。
主な用途
MSP430F157IPM の用途: 6 件s: Portable Environmental Monitoring, Industrial Sensor Acquisition, Precision Control and Signal Generation, Battery-Powered Data Loggers, Communications and Protocol Conversion, Connected IoT Measurement Node.
Portable Environmental Monitoring
The MSP430F157IPM fits portable environmental monitoring because its 8 MHz 16-bit RISC CPU can process measurements while the integrated 12-bit ADC eliminates a separate converter. The 1.8 V to 3.6 V supply range and five low-power modes support compact, battery-operated instruments. Its 1 KB SRAM accommodates sensor values and acquisition control state, while 32 KB flash stores firmware. Use the ADC channels for temperature, humidity, light, or gas-sensor signals, and use the UART or I2C interface to report results to a host or radio module.
おすすめ
Industrial Sensor Acquisition
The MSP430F157IPM is well suited to industrial sensor acquisition because it combines an 8 MHz processor, a 12-bit ADC, comparator, DMA, and serial communications in one 64-LQFP device. The DMA controller can move sampled data with reduced processor intervention, while I2C and SPI accommodate sensor modules and the UART supports a supervisory link. The industrial temperature grade supports controlled industrial environments, and the 1.8 V to 3.6 V range allows integration with low-voltage analog front ends when their signal and reference requirements are compatible.
おすすめ
Precision Control and Signal Generation
The MSP430F157IPM supports precision control applications with its dual 12-bit DACs, comparator, 12-bit ADC, and 16-bit processing architecture. The two DAC channels can generate independent analog control or excitation signals, and the ADC can verify the resulting output through a feedback path. At 8 MHz, the processor can execute control and monitoring routines while DMA supports efficient data movement. Validate loop stability, reference-voltage accuracy, DAC output range, and settling time against the manufacturer datasheet before closing the control path.
おすすめ
Battery-Powered Data Loggers
The MSP430F157IPM is appropriate for battery-powered data loggers because its MSP430 architecture combines a 16-bit RISC CPU with five low-power modes for duty-cycled operation. The 12-bit ADC can capture sensor data, while 1 KB SRAM provides working storage for current samples and buffers; larger records can be streamed through UART, SPI, or I2C. The 1.8 V minimum supply voltage supports low-voltage power systems. Optimize energy use by disabling unused peripherals, selecting an appropriate low-power mode, and separating analog sampling time from long inactive intervals.
おすすめ
Communications and Protocol Conversion
The MSP430F157IPM can serve as a compact communications controller because it provides UART, SPI, and I2C interfaces alongside 32 KB flash and 1 KB SRAM. Firmware can translate between protocols, supervise sensor traffic, or perform local filtering before forwarding data. The 8 MHz 16-bit processor provides deterministic handling of framing and control logic, and the 64-pin package leaves dedicated I/O for several interfaces. Validate baud-rate tolerance, interrupt latency, and electrical levels of each external transceiver against the system timing requirements.
おすすめ
Connected IoT Measurement Node
The MSP430F157IPM can form the measurement and control core of a connected IoT node. It acquires analog inputs through the 12-bit ADC, performs local computations, and transfers results using I2C, SPI, or UART. The MCU’s compact 64-LQFP footprint and low-voltage operation suit space-constrained nodes, while DMA and multiple low-power modes help control workload and standby consumption. Pair it with a dedicated wireless module and regulator, isolate sensitive analog inputs from digital switching, and define recovery behavior for communication loss and sensor faults.
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: MSP430F157IPM — 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 | MSP430F156IPM | MSP430F158IPM | MSP430F161IPM | MSP430F167IPM | MSP430F168IPM |
|---|---|---|---|---|---|---|
| Package | 64-LQFP (PM), 10 mm x 10 mm | 64-LQFP (PM) | 64-LQFP (PM) | 64-LQFP (PM) | 64-LQFP (PM) | 64-LQFP (PM) |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
主な差別化要因
- Integrated dual 12-bit DAC alongside a 12-bit ADC （vs MSP430F161IPM)
- Three serial-interface types on a 64-pin mixed-signal MCU （vs MSP430F168IPM)
- 32 KB flash and 1 KB SRAM with an 8 MHz 16-bit RISC CPU （vs MSP430F167IPM)
設計ノート
Route analog inputs directly to their assigned ADC pins and keep them away from switching-node and high-speed serial traces. Use the pin-description and application-layout sections in the manufacturer datasheet for the 64-LQFP (PM) footprint. Analog grounds, supply grounds, and digital returns should meet at a controlled point, while input components should sit close to the MCU to minimize pickup before the 12-bit ADC samples the signal.
Place the required bypass capacitors close to the device supply and ground pins, following the values and placement shown in the Texas Instruments MSP430F15x, MSP430F16x, MSP430F161x datasheet. The MSP430F157IPM operates from 1.8 V to 3.6 V, so confirm regulator tolerance, startup behavior, and the analog reference arrangement. Do not assume that a rail meeting digital requirements also meets ADC and DAC accuracy requirements.
Do not treat every MSP430 family member as interchangeable merely because it uses a 64-LQFP package. Before substituting MSP430F156IPM, MSP430F158IPM, MSP430F161IPM, MSP430F167IPM, or MSP430F168IPM, compare every assigned pin, supply requirement, ADC and DAC function, interrupt vector, peripheral instance, timing parameter, and firmware register definition. A PCB footprint match alone does not guarantee behavioral or pin-function compatibility.
The Mouser listing snippet contains conflicting SRAM wording, while the Texas Instruments product page and distributor snippet identify 1 KB SRAM. Use 1 KB as the controlling device description and verify it in the manufacturer datasheet before sizing buffers or firmware state. Likewise, confirm the exact ordering code and shipping format because the package identifier alone does not establish the quantity packed on a tray or reel.
コンプライアンス情報
The manufacturer identifies MSP430F157IPM as an active industrial-grade MCU. Specific RoHS, REACH, lead-free, halogen-free, and conflict-minerals declarations were not identified in the cited product information.
