MSP430F2002IN - 16MHz 1KB Flash MCU | Texas Instruments
MPN: MSP430F2002IN ✓ ActiveMSP430F2002IN Overview
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.
Drop-in alternatives for MSP430F2002IN — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with MSP430F2002IN (same form factor and footprint) — differing in Flash Memory, CPU Architecture, Package, ADC Resolution, Mounting Type.
MSP430F2003IN
✅ Drop-In ⚠️ Specs UnverifiedContact for price
View Datasheet →MSP430F2012IN
✅ Drop-In ⚠️ Specs UnverifiedContact for price
View Datasheet →MSP430F2013IN
✅ Drop-In ⚠️ Specs UnverifiedContact for price
View Datasheet →MSP430F2014IN
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
MSP430F2033IN
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
MSP430F2002IN Maximum Ratings & Electrical Characteristics
| CPU Architecture | 16-bit RISC |
| Maximum Clock Frequency | 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 |
| Operating Temperature Range | -40°C to +85°C |
| Package | 14-pin PDIP (N) |
| Package Type | PDIP through-hole |
| Mounting Type | Through-hole |
| Wake-Up Time from Standby | Less than 6 µs |
| Power-Saving Modes | Five power-saving modes |
MSP430F2002IN pdip through-hole Pin Configuration Guide
Pin configuration for MSP430F2002IN (pdip through-hole package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for MSP430F2002IN.
Refer to the datasheet for full pin configuration.
Typical Applications
MSP430F2002IN is suitable for 6 applications: 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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
Recommended Products Summary
Engineering reference data for MSP430F2002IN — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | 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 |
Key Differentiators
- Compact memory footprint for mixed-signal control (vs MSP430F149IPAGR)
- Integrated 10-bit analog conversion (vs MSP430F2014IN)
- Compact serial connectivity (vs MSP430F5438AIPZR)
- Low-voltage 16 MHz processing (vs MSP430G2121IN14)
Design Notes
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.
Compliance Information
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.