MSP430F112IPW - 8MHz 16-Bit 4KB MCU | Texas Instruments
料号： MSP430F112IPW ✓ 量产中MSP430F112IPW 概述
A microcontroller is a programmable semiconductor that integrates a CPU, memory, and peripherals on one chip. Within the product hierarchy, the MSP430F112IPW is a mixed-signal microcontroller, an embedded controller, and an ultra-low-power MCU. Its architecture and low-power modes are intended to extend battery life in portable measurement applications while providing enough processing performance for digital control, event timing, and analog-signal monitoring.
Verified distributor and manufacturer listings identify several engineering highlights: an 8 MHz maximum clock, 4 KB of Flash, 256 bytes of SRAM, a 1.8 V to 3.6 V supply range, a 125 ns instruction cycle, and integrated timer and comparator functions. Listed power characteristics include 200 µA active current at 1 MHz and 2.2 V, 0.8 µA standby current, 0.1 µA off current with RAM retention, and wake-up from standby in less than 6 µs.
The MSP430F112 family uses a 16-bit RISC CPU with 16-bit registers. Its timer is useful for periodic sampling, elapsed-time measurement, pulse generation, and control-loop timing, while the comparator can support threshold detection against an external reference. These mixed-signal resources reduce the need for separate discrete timing or comparison components in compact sensor nodes.
Typical applications include battery-powered sensor nodes, industrial process-monitoring instruments, portable measurement equipment, smart metering products, and low-power embedded-control systems. The part is particularly appropriate when the design needs deterministic control from a small memory footprint and a supply voltage that can extend down to 1.8 V.
When designing around the MSP430F112IPW, verify memory requirements carefully because manufacturer and distributor summaries describe the device family with differing memory figures. The target-part distributor listing specifies 4 KB of Flash and 256 bytes of SRAM, while the TI product-family search result describes a 2 KB Flash and 128-byte SRAM configuration. Confirm the exact memory map against the linked MSP430F11x datasheet before finalizing firmware and PCB allocations.
This page combines verified distributor pricing, manufacturer product information, package details, application guidance, and explicit replacement caveats. It distinguishes confirmed drop-in candidates from options that require firmware, memory, or PCB validation, providing practical procurement and design context beyond a basic distributor listing.
直接替换替代料： MSP430F112IPW ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
MSP430F1121IPW
✅ 直接替换📋 参考替代料（不在目录中）
MSP430F112AIPW
✅ 直接替换📋 参考替代料（不在目录中）
MSP430F112IPW 最大额定值与电气特性
| Product Type | Mixed-Signal Microcontroller |
| Architecture | 16-Bit RISC |
| 最大时钟频率 | 8 MHz |
| Instruction Cycle Time | 125 ns |
| Flash Memory | 4 KB |
| Flash Organization | 4K x 8 |
| SRAM | 256 bytes |
| Supply Voltage Range | 1.8 V to 3.6 V |
| Active Current | 200 µA at 1 MHz and 2.2 V |
| Standby Current | 0.8 µA |
| Off Current | 0.1 µA with RAM retention |
| Standby Wake-Up Time | Less than 6 µs |
| Timer | Integrated |
| Comparator | Integrated |
| 封装 | 20-pin TSSOP (PW) |
| 安装类型 | Surface Mount |
| 生命周期状态 | Active |
MSP430F112IPW 20-pin tssop (pw) 引脚配置指南
MSP430F112IPW（20-pin tssop (pw) 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： MSP430F112IPW.
请参阅 数据手册 以查看完整引脚配置。
典型应用
MSP430F112IPW 适用于 6 应用s: Battery-Powered Sensor Nodes, Portable Measurement Instruments, Industrial Process Monitoring, Smart Metering and Utility Sensors, Timing and Control Subsystems, Low-Power Embedded Products.
Battery-Powered Sensor Nodes
The MSP430F112IPW fits compact battery-powered sensor nodes because its verified standby current is 0.8 µA, off current with RAM retention is 0.1 µA, and standby wake-up occurs in less than 6 µs. The 16-bit RISC core executes with a 125 ns instruction-cycle time, while the timer can schedule periodic conversions and the comparator can detect threshold crossings. A sensor-and-MCU design can therefore remain dormant between samples and activate quickly for measurement. The listed 200 µA active current at 1 MHz and 2.2 V provides a useful baseline, although total battery life also depends on sensor current, radio activity, leakage, and the duty cycle.
推荐
Portable Measurement Instruments
The MSP430F112IPW is appropriate for portable measurement instruments that combine low-voltage operation with deterministic control. Its 8 MHz maximum clock and 125 ns instruction-cycle time support responsive sampling and control logic, while the timer provides accurate elapsed-time and periodic-measurement functions. The verified 1.8 V to 3.6 V operating range also supports compact mixed-signal designs built around low-energy rails. A practical implementation can use the comparator for threshold detection and the timer for regular sampling. Firmware and board designers should first resolve the conflicting 4 KB/256-byte and 2 KB/128-byte memory descriptions in the supplied product summaries.
推荐
Industrial Process Monitoring
The MSP430F112IPW can serve as the low-power control core in an industrial process-monitoring module where the measured variable is represented by a low-frequency or threshold-based signal. Its integrated comparator supports economical alarm detection, while its timer supports periodic sampling, debounce timing, and periodic actuator updates. The verified 1.8 V to 3.6 V supply range allows local regulated operation, and standby current of 0.8 µA supports reduced-duty-cycle monitoring. For harsh industrial environments, engineers should still validate EMC, temperature, isolation, protection networks, and any qualification requirements separately rather than inferring them from the core MCU specifications.
推荐
Smart Metering and Utility Sensors
The MSP430F112IPW is suitable for smart-metering and utility-sensor subsystems that wake periodically to acquire information and then return to a low-power state. Its 8 MHz 16-bit RISC core supports compact protocol handling, the timer supports accurate sampling schedules, and the comparator can detect threshold events without requiring a larger external comparator. Verified standby wake-up below 6 µs helps preserve responsiveness, while 0.8 µA standby and 0.1 µA off-with-RAM-retention figures favor long deployment intervals. The design must also account for sensor accuracy, radio duty cycle, energy-harvesting variation, and the exact MSP430F11x memory map before deployment.
推荐
Timing and Control Subsystems
The MSP430F112IPW can act as the timing and control subsystem in a compact embedded product that requires deterministic event sequencing. Its 125 ns instruction-cycle time and 8 MHz maximum clock provide adequate control bandwidth, while the integrated timer handles count, compare, capture, and periodic timing functions depending on the device configuration. The comparator can supervise a threshold or generate an event, and the 16-bit RISC architecture simplifies register-oriented control code. Because the supplied data does not specify every timer channel or digital I/O count, engineers should consult the MSP430F11x datasheet before assigning a precise timer architecture or pin-level function.
推荐
Low-Power Embedded Products
The MSP430F112IPW supports low-power embedded products in which a small 20-pin TSSOP package, mixed-signal resources, and low standby consumption matter more than large on-chip memory. The 16-bit RISC core is efficient for event-driven firmware, and the timer can maintain system schedules while the comparator performs local threshold decisions. Its verified supply range of 1.8 V to 3.6 V also permits integration with low-voltage sensors and energy-management circuitry. The primary design caution is memory availability: distributor data identifies 4 KB Flash and 256 bytes of SRAM, while a TI family result states 2 KB and 128 bytes. Resolve the exact variant before selecting a bootloader, logging strategy, or application buffer.
推荐
推荐产品汇总
工程参考数据： MSP430F112IPW ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | MSP430F1121IPW | MSP430F112AIPW |
|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 20-pin TSSOP (PW) | 20-pin TSSOP (PW) | 20-pin TSSOP (PW) |
| CPU Architecture | 16-Bit RISC | 16-Bit RISC MSP430 family | 16-Bit RISC MSP430 family |
| Timer | Integrated | Integrated in MSP430F11x family | Integrated in MSP430F11x family |
| Comparator | Integrated | Integrated in MSP430F11x family | Integrated in MSP430F11x family |
关键差异点
- Documented exact active target-part ordering option （对比 MSP430F1121IPW)
- Low-power mixed-signal integration （对比 MSP430F112AIPW)
- Single-source family support （对比 MSP430F1121IPW)
设计说明
The verified active-current figure of 200 µA applies at 1 MHz and 2.2 V, not necessarily at the maximum 8 MHz operating point. Budget the regulator, sensor, pull resistors, and communications hardware separately, and measure the complete board in its real operating modes. The listed 0.8 µA standby and 0.1 µA RAM-retained off currents are useful low-power targets, but they do not include external load current or regulator quiescent current. Use the manufacturer power-budget procedure when duty-cycling the timer and comparator.
Place the MCU and its decoupling network according to the MSP430F11x datasheet layout guidance, with the shortest practical path between each supply pin and its local capacitor. The 20-pin TSSOP footprint is compact, so route escape paths and verify clearances against the manufacturer land pattern before fabrication. Keep sensitive comparator inputs away from switching nodes and high-current return paths. Because the supplied excerpts do not contain a complete pin table, use the official Revision D datasheet for every signal assignment rather than inferring pins from similar MSP430 devices.
Do not base firmware capacity or memory allocation solely on the distributor summary. The verified target listing specifies 4 KB Flash and 256 bytes of SRAM, while the TI product-family snippet describes 2 KB Flash and 128 bytes of SRAM. Resolve the contradiction using the exact device marking, orderable part record, and MSP430F11x datasheet. Also verify timer-channel availability, comparator inputs, I/O count, and brownout behavior before treating MSP430F1121IPW or MSP430F112AIPW as a drop-in replacement.
A standby-current specification is not a complete battery-life result. External sensors, pull-up networks, LEDs, radios, and the chosen regulator can dominate standby consumption. Likewise, the less-than-6-µs wake-up time does not include sensor-settling or radio-startup time. Establish an end-to-end energy budget and test the assembled product at its intended voltage, temperature, and operating temperature extremes before defining battery service intervals.
合规信息
The supplied verified snippets identify the device as active but do not provide explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations. These values remain unknown rather than being inferred from manufacturer identity or package type.
