MSP430F2002IN - 16MHz 1KB Flash MCU | Texas Instruments
料号： MSP430F2002IN ✓ 量产中MSP430F2002IN 概述
A mixed-signal microcontroller combines a digital processing core with analog conversion and comparison functions. The MSP430F2002 belongs to the MSP430F2xx family of ultra-low-power 16-bit RISC microcontrollers, a branch of embedded processors and mixed-signal ICs. Its 125 ns instruction cycle provides a 16 MHz operating rate, while its small memory footprint targets compact control, sensing, and measurement systems rather than resource-intensive applications.
Key device features include 1 KB of Flash program memory, 128 bytes of SRAM, a 10-bit successive-approximation ADC, a USI supporting SPI or I2C, an internal comparator, and timer resources. The 10 available I/O ports support integration with sensors, actuators, indicators, and external peripherals. The manufacturer data also identifies low supply-voltage operation, multiple low-power operating modes, and a wake-up time below 6 µs as important characteristics of the device family.
The MSP430 architecture uses a 16-bit RISC core and a mixed-signal feature set suited to low-power embedded control. The ADC permits direct measurement of analog inputs, while the USI provides a compact interface to serial sensors and external controllers. Because SRAM is limited to 128 bytes, firmware must use the Flash program area efficiently and should avoid buffering large data sets in RAM.
Typical uses include battery-powered environmental sensors, compact industrial monitoring nodes, digital thermometers, simple energy meters, low-cost control boards, and embedded instruments that require analog measurement, serial communication, and low standby consumption. The device can also support low-power wake-and-measure products where the ADC result determines whether communication should begin.
Designers should verify the exact peripheral pin assignments and alternate-function limitations against the manufacturer datasheet before finalizing the PCB. The 14-pin PDIP package simplifies breadboard and through-hole prototypes, but its comparatively large footprint is less suitable for compact production products. Firmware should use conservative RAM budgets, retain only essential state between sleep intervals, and tolerate peripheral differences among MSP430F2xx family members.
直接替换替代料： MSP430F2002IN ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： MSP430F2002IN （相同外形与封装尺寸） ——差异在于 Flash Memory, CPU Architecture, Package, ADC Resolution, Mounting Type.
MSP430F2003IN
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →MSP430F2012IN
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →MSP430F2013IN
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →MSP430F2014IN
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
MSP430F2033IN
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
MSP430F2002IN 最大额定值与电气特性
| CPU Architecture | 16-bit RISC |
| 最大时钟频率 | 16 MHz |
| Instruction Cycle Time | 125 ns |
| Flash Memory | 1 KB |
| SRAM | 128 bytes |
| ADC Resolution | 10-bit SAR |
| Serial Interface | SPI/I2C USI |
| Comparator | Internal comparator |
| I/O Ports | 10 ports |
| Supply Voltage Range | 1.8 V to 3.6 V |
| 工作温度范围 | -40°C to +85°C |
| 封装 | 14-pin PDIP (N) |
| Package Type | PDIP through-hole |
| 安装类型 | Through-hole |
| Wake-Up Time from Standby | Less than 6 µs |
| Power-Saving Modes | Five power-saving modes |
MSP430F2002IN pdip through-hole 引脚配置指南
MSP430F2002IN（pdip through-hole 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： MSP430F2002IN.
请参阅 数据手册 以查看完整引脚配置。
典型应用
MSP430F2002IN 适用于 6 应用s: Battery-Powered Environmental Sensor, Compact Digital Thermometer, Industrial Process Monitor, Low-Power Data Acquisition Module, Simple Energy Metering Controller, Embedded Control and Instrumentation.
Battery-Powered Environmental Sensor
The MSP430F2002IN fits compact environmental sensing because its 10-bit SAR ADC can measure analog sensor outputs while the USI supports SPI or I2C communication. The 1.8 V to 3.6 V operating range permits integration with low-energy sensor rails, and the device enters one of five power-saving modes when measurements are not required. A practical design would enable the ADC, acquire one or more channels, store only the essential result in 128 bytes of SRAM, and then sleep. The principal limitation is memory: 1 KB of Flash and 128 bytes of SRAM favor small, event-driven firmware rather than buffering or complex local processing.
推荐
Compact Digital Thermometer
The MSP430F2002IN is appropriate for a digital thermometer that combines a resistive or semiconductor sensor with a small display and a serial interface. Its 10-bit SAR ADC provides 1,024 measurement codes, while the internal comparator and timer resources can support thresholding, periodic sampling, and simple timing functions. Operating at 16 MHz provides sufficient response time for conversion and display updates, while the low-voltage range simplifies compatibility with button-cell or energy-harvesting designs. Firmware should calibrate the ADC and compensate for sensor nonlinearity because the specified 10-bit resolution does not by itself establish absolute measurement accuracy.
推荐
Industrial Process Monitor
The MSP430F2002IN can serve as a low-cost industrial process monitor for a slowly changing analog process variable. Its 10-bit ADC, comparator, timers, and 10 I/O ports are sufficient for threshold alarms, sensor conditioning, status indication, and communication with a controller. The 1.8 V to 3.6 V range supports low-voltage industrial sensor interfaces when the input signals are appropriately conditioned. Because the device has only 128 bytes of SRAM, logs should be transmitted or stored externally rather than accumulated locally. The -40°C to +85°C industrial temperature range supports typical controlled equipment environments.
推荐
Low-Power Data Acquisition Module
The MSP430F2002IN works in a low-power acquisition module when measurements are periodic and can be transferred over SPI or I2C. Its 10-bit SAR ADC handles typical sensor-level signals, and the USI provides a compact bidirectional serial interface without requiring separate communication peripherals. The 16 MHz CPU can execute conversion control and packet formatting, while standby wake-up below 6 µs supports responsive event-driven operation. For continuous high-rate acquisition, however, an MCU with more memory, faster ADC sampling, or DMA would be preferable. The 128-byte SRAM limit makes short acquisition windows and immediate data transfer especially important.
推荐
Simple Energy Metering Controller
The MSP430F2002IN is suitable for a compact metering controller that measures a low-frequency analog signal and reports operating status through a serial interface. The ADC provides 10-bit resolution for basic energy or power-proxy measurements, while the comparator can provide a fast threshold signal without continuously converting. The USI can communicate with an external metering or display IC. Because the memory budget is only 1 KB of Flash and 128 bytes of SRAM, this role should emphasize calibration, event counting, and data transfer rather than long-term historical logging. Regulatory metering normally requires a more specialized device with higher measurement accuracy and traceability.
推荐
Embedded Control and Instrumentation
The MSP430F2002IN can act as the controller in a small instrument that combines analog measurement, digital I/O, and serial configuration. Its 10 I/O ports are useful for switches, indicators, relays, and digital sensors, while the internal comparator and timer can support direct sensing and periodic control tasks. At 16 MHz, the 16-bit RISC core executes control logic with a 125 ns instruction cycle. The through-hole PDIP package also makes the device convenient for prototypes and educational instrumentation. Production designs should verify alternate-function conflicts, use the supplied device pin data, and include firmware checks for watchdog and brownout behavior before deploying the board.
推荐
推荐产品汇总
工程参考数据： MSP430F2002IN ——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 | MSP430F2003IN | MSP430F2012IN | MSP430F2013IN | MSP430F2014IN | MSP430F2033IN |
|---|---|---|---|---|---|---|
| Package | 14-pin PDIP (N) | 14-pin PDIP (N) | 14-pin PDIP (N) | 14-pin PDIP (N) | 14-pin PDIP (N) | 14-pin PDIP (N) |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
关键差异点
- Compact memory footprint for mixed-signal control （对比 MSP430F149IPAGR)
- Integrated 10-bit analog conversion （对比 MSP430F2014IN)
- Compact serial connectivity （对比 MSP430F5438AIPZR)
- Low-voltage 16 MHz processing （对比 MSP430G2121IN14)
设计说明
The MSP430F2002IN operates from 1.8 V to 3.6 V, so the supply rail must remain within the manufacturer-specified range under startup, load, and transient conditions. Use a regulator with low quiescent current when battery life matters, and place the bypass network close to the supply pins. Because the verified snippets do not provide the exact pin numbers or recommended capacitor values, consult the manufacturer datasheet before finalizing the decoupling network.
Do not treat 128 bytes of SRAM as general-purpose data storage. Constrain stack usage, avoid copying large sample buffers, and transmit or discard each measurement promptly. Validate the linker map for the selected code, keep interrupt handlers short, and account for atomic operations on shared variables. Firmware changes are also necessary if an alternative has different Flash capacity, ADC channels, or peripheral multiplexing.
Keep analog inputs and their reference connections short, and route them away from high-current switching nodes to reduce conversion errors. Follow the manufacturer ground and decoupling guidance for the 14-pin PDIP layout. When substituting another MSP430F2xx device, compare the complete pin diagram, including analog inputs, USI signals, timers, and I/O alternate functions; matching the 14-pin package alone does not guarantee electrical interchangeability.
Use the device's low-power modes to reduce average current, but design wake-up behavior around the stated standby wake-up time of less than 6 µs. Disable unused USI, timers, ADC references, and comparator paths where supported, and avoid periodic polling when an external interrupt can request service. Actual battery life must be calculated from measured active and sleep currents because the supplied data does not provide complete duty-cycle current tables.
合规信息
The supplied verified snippets identify the lifecycle as active and specify the industrial-temperature 14-pin PDIP ordering option, but they do not provide explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals statements.