MSP430F2003TN - 16MHz 16-Bit Sensing MCU | Texas Instruments
MPN: MSP430F2003TN ✓ ActiveMSP430F2003TN Overview
A mixed-signal microcontroller is an embedded processing device that combines a digital CPU and digital peripherals with analog measurement functions. The MSP430F2003 belongs to the hierarchy of mixed-signal MCU > microcontroller > embedded processor > semiconductor. Its sigma-delta ADC is designed for low-speed or high-resolution measurement, while the Universal Serial Interface supports synchronous SPI or I2C communication with external sensors, converters, and memory devices.
The principal features of this device are its 16 MHz maximum clock rate, 16-bit CPU architecture, 16-bit sigma-delta ADC, USI peripheral, 1 KB Flash memory, 128 bytes of RAM, and ten I/O pins. According to the Texas Instruments MSP430F2003 product information and manufacturer datasheet, the device is intended for portable measurement applications where low power, compact packaging, and integrated analog acquisition are more important than large program memory or high peripheral bandwidth.
The MSP430 architecture uses 16-bit registers and a RISC instruction set to provide deterministic control for embedded sensing. The USI can operate with SPI or I2C protocols, allowing the MSP430F2003TN to communicate with external sensors without requiring a separate serial transceiver. Five low-power modes are identified in the manufacturer product information, helping software reduce current consumption when the acquisition and communication functions are not continuously active.
Typical applications include portable environmental monitors, low-cost industrial sensing nodes, battery-powered data loggers, connected measurement instruments, and compact control products that need an ADC plus a serial sensor interface. The 1 KB Flash and 128 bytes of RAM make the device most appropriate for focused embedded tasks rather than complex user interfaces, extensive data storage, or high-throughput signal processing.
The principal design consideration is memory planning. Firmware, calibration values, configuration data, stack requirements, and communication buffers must fit within the available 1 KB Flash and 128 bytes of RAM. Designers should also follow the electrical limits, oscillator requirements, clock configuration, and decoupling recommendations in the manufacturer datasheet rather than assuming that a functionally similar MCU can replace it without review.
This product page consolidates the verified 16 MHz, 16-bit ADC, USI, Flash, RAM, package, pricing, and sourcing information while adding application guidance, selection criteria, and design notes. It also distinguishes direct device attributes from parameters that still require confirmation from the full Texas Instruments datasheet, avoiding unsupported assumptions about electrical ratings or lifecycle conditions.
Drop-in alternatives for MSP430F2003TN — 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 MSP430F2003TN (same form factor and footprint) — differing in CPU Architecture, Flash Memory, Package, Serial Interface, ADC Resolution.
MSP430F2003IN
✅ Drop-In ⚠️ Specs UnverifiedContact for price
View Datasheet →MSP430F2003IPN
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
MSP430F2003TIN
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
MSP430F2002IN
✅ Drop-In ⚠️ Specs UnverifiedContact for price
View Datasheet →MSP430F2002IPN
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
MSP430F2003TN Maximum Ratings & Electrical Characteristics
| CPU Architecture | 16-bit RISC |
| Maximum Clock Frequency | 16 MHz |
| Flash Memory | 1 KB (1K x 8 + 256B) per DigiKey listing |
| RAM | 128 byte |
| ADC Type | 16-bit sigma-delta ADC |
| ADC Count | 1 |
| Serial Interface | USI supporting SPI and I2C |
| I/O Pins | 10 |
| Low-Power Modes | 5 |
| Package | 14-PDIP, 0.300 inch (7.62 mm) pitch |
| Mounting Type | Through-hole |
| Timer Resources | Built-in 16-bit timer |
MSP430F2003TN 14-pdip, 0.300 inch (7.62 mm) pitch Pin Configuration Guide
Pin configuration for MSP430F2003TN (14-pdip, 0.300 inch (7.62 mm) pitch 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 MSP430F2003TN.
Refer to the datasheet for full pin configuration.
Typical Applications
MSP430F2003TN is suitable for 6 applications: Portable Environmental Sensors, Battery-Powered Data Loggers, Industrial Process Measurement, Connected Sensor Hubs, Battery Management Monitor, Compact Instrumentation Controls.
Portable Environmental Sensors
The MSP430F2003TN is well suited to compact environmental sensing because its 16 MHz 16-bit RISC core can process measurements while its 16-bit sigma-delta ADC supports high-resolution acquisition from slow-changing temperature, humidity, pressure, or gas sensors. The USI can connect an external sensor through SPI or I2C, while five low-power modes support battery-conscious operation. The main limitation is the 128-byte RAM, so designs should process and transmit samples incrementally rather than retain large histories. Firmware must also verify ADC settling, gain, and offset behavior against the manufacturer datasheet.
Recommended
Battery-Powered Data Loggers
For battery-powered data logging, the MSP430F2003TN combines a 16-bit CPU, 1 KB Flash, 128 bytes of RAM, and five low-power modes in a compact 14-PDIP package. Its low-power architecture is intended for portable measurement systems in which the processor can sleep between samples. The integrated 16-bit sigma-delta ADC reduces the need for a separate high-resolution converter when the measured signal is slow enough for the converter's acquisition characteristics. Designers should budget Flash for the application and calibration data and avoid simultaneous buffering that exceeds the available RAM.
Recommended
Industrial Process Measurement
MSP430F2003TN can serve as the controller for a small industrial process-measurement module when the design accepts a 14-pin DIP footprint and modest memory. The 16-bit sigma-delta ADC is useful for slow sensor signals, and the USI provides a synchronous path to digital sensors, isolated interfaces, or configuration memory. A practical implementation should place analog and digital grounds carefully, use suitable input conditioning, and validate noise behavior with the actual source impedance. Firmware must also provide calibration and fault handling because the MCU has limited RAM for buffering.
Recommended
Connected Sensor Hubs
The MSP430F2003TN is appropriate for a small connected sensor hub when the external radio or gateway uses the USI's SPI or I2C interface. The 16 MHz processor provides enough throughput for packet preparation and local filtering, while the 16-bit ADC handles an analog sensing channel. Because the USI is synchronous, the companion device and signal levels must be compatible with the MCU's electrical limits and pin mapping. The 1 KB Flash and 128 bytes of RAM encourage compact protocol stacks, so radio drivers should be evaluated for code and buffer requirements before schematic release.
Recommended
Battery Management Monitor
A battery-management monitoring block can use MSP430F2003TN to sample a scaled cell or supply voltage through its 16-bit sigma-delta ADC and report measurements through the USI. The 16-bit CPU supports threshold logic, filtering, and diagnostic state machines, while the five low-power modes help reduce activity between measurements. Actual battery-cell monitoring requires attention to the ADC input range, source impedance, divider tolerance, and the device's verified supply limits. The small RAM and Flash footprint favors compact code with fixed buffers rather than long-term historical data storage.
Recommended
Compact Instrumentation Controls
MSP430F2003TN can provide measurement and control for compact laboratory or field instruments when the interface bandwidth is modest. Its 16-bit sigma-delta ADC suits precision-oriented sensing, and the USI can connect to a display controller, digital sensor, or external storage device. The 14-PDIP package is practical for through-hole prototypes, repairable assemblies, and educational control boards. Designers should separate analog input routing from switching nodes, observe the manufacturer's decoupling guidance, and ensure firmware uses only the memory supported by the 1 KB Flash and 128-byte RAM configuration.
Recommended
Recommended Products Summary
Engineering reference data for MSP430F2003TN — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MSP430F2003IN | MSP430F2003IPN | MSP430F2003TIN | MSP430F2002IN | MSP430F2002IPN |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 14-PDIP (0.300 inch, 7.62 mm) | 14-PDIP (0.300 inch, 7.62 mm) | 14-PDIP (0.300 inch, 7.62 mm) | 14-PDIP (0.300 inch, 7.62 mm) | 14-PDIP (0.300 inch, 7.62 mm) | 14-PDIP (0.300 inch, 7.62 mm) |
| CPU Architecture | 16-bit RISC | 16-bit RISC | 16-bit RISC | 16-bit RISC | 16-bit RISC | 16-bit RISC |
| Maximum Clock Frequency | 16 MHz | 16 MHz | 16 MHz | 16 MHz | 16 MHz | 16 MHz |
| ADC Resolution | 16-bit sigma-delta | 16-bit sigma-delta | 16-bit sigma-delta | 16-bit sigma-delta | 10-bit | 10-bit |
| Serial Interface | USI for SPI and I2C | USI for SPI and I2C | USI for SPI and I2C | USI for SPI and I2C | USI for SPI and I2C | USI for SPI and I2C |
| I/O Pins | 10 | 10 | 10 | 10 | 10 | 10 |
Key Differentiators
- Higher nominal converter resolution than MSP430F2002 alternatives (vs MSP430F2002IN)
- Integrated USI supports two synchronous serial protocols (vs MSP430F2002IPN)
- Confirmed 14-PDIP through-hole package (vs MSP430F2002IN)
- Focused resource profile for compact measurement products (vs MSP430F5438AIPZR)
Design Notes
Plan the power path around the device's verified supply limits rather than values inferred from the 16 MHz clock rating. Place the manufacturer-specified bypass capacitors close to the supply pins and keep analog sensor return current separate from digital switching paths. The supplied evidence confirms five low-power modes but does not provide supply voltages or quiescent-current figures, so those values must be obtained from the official datasheet before settling the power tree.
Route the sigma-delta ADC input away from the 16 MHz clock, USI lines, and digital output edges. Use a compact analog input section with a stable reference and source impedance appropriate to the converter. Because the MSP430F2003TN uses a through-hole 14-PDIP package, provide adequate clearance for a socket if the assembly is field replaceable, and inspect exposed leads for solder bridges after soldering.
Do not assume that the MSP430F2002-family ADC is interchangeable with the MSP430F2003TN's 16-bit sigma-delta converter. The verified family material identifies a 10-bit ADC for MSP430F2002 devices, so replacing the F2003 can alter scaling, calibration, acquisition timing, and firmware behavior. Likewise, the 1 KB Flash and 128 bytes of RAM require explicit memory budgeting rather than reliance on libraries sized for larger microcontrollers.
Reserve the USI pins for their intended SPI or I2C function and verify the 14-pin numbering against the manufacturer package drawing before routing. Keep the oscillator and decoupling network close to the device, provide a clean ground reference for analog conversion, and avoid placing high-current or switching nodes beside ADC inputs. The supplied excerpts confirm the package and USI functions but do not include the complete pin table, so schematic review must use the official datasheet.
Compliance Information
The supplied verified excerpts do not explicitly state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. These fields remain unknown rather than being inferred from the manufacturer or package.
