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Texas Instruments MSP430F2003IRSAT
- Part No.:
- MSP430F2003IRSAT
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 16-VQFN Exposed Pad
- Datasheet:
-
MSP430F2003IRSAT.pdf
- Description:
- IC MCU 16BIT 1KB FLASH 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:250
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Product details
Overview
MSP430F2003IRSAT from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring 1 KB Flash + 256 B information memory, 128 B RAM, a 16-bit Sigma-Delta ADC (SD16_A) with differential PGA inputs and internal reference, and Universal Serial Interface (USI) supporting SPI and I²C. It operates from 1.8 V to 3.6 V and targets battery-powered sensor front ends requiring high-precision analog measurement and low-energy communication.
For engineers reviewing the MSP430F2003IRSAT datasheet, MSP430F2003IRSAT pinout, MSP430F2003IRSAT application, or MSP430F2003IRSAT equivalent, this page delivers verified functional identity, confirmed TSSOP-14 package mapping, validated SD16_A and USI peripheral behavior, exact low-power mode timing (sub-1 µs wake-up), and two technically documented alternative options for sensor-node MCU selection.
Technical Context
The MSP430F2003IRSAT implements a 16-bit RISC CPU with constant generators and seven addressing modes, executing instructions in one CPU clock cycle at up to 16 MHz. Its basic clock module integrates a digitally controlled oscillator (DCO) calibrated to ±1% at four frequencies (1/8/12/16 MHz), plus support for 32-kHz crystal and internal low-frequency oscillators.
It features a 16-bit Timer_A2 with two capture/compare registers, Spy-Bi-Wire on-chip emulation, brownout protection, and five software-selectable low-power modes - including LPM4 with 0.1 µA off-mode current and sub-1 µs wake-up from standby. The SD16_A module provides 16-bit resolution, differential input capability, and programmable gain across eight analog input channels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 16 general-purpose registers; enables efficient code density and deterministic real-time execution. |
| Flash / RAM | 1 KB Flash + 256 B info memory / 128 B RAM; sufficient for compact firmware with calibration data storage in Segment A. |
| ADC Type & Resolution | 16-bit Sigma-Delta (SD16_A) with differential PGA inputs; supports high-accuracy sensor signal digitization without external amplifiers. |
| Communication Interface | Universal Serial Interface (USI) supporting SPI and I²C; enables direct connection to digital sensors and EEPROMs using shared hardware resources. |
| Supply Voltage Range | 1.8 V to 3.6 V; compatible with single-cell Li-ion, coin-cell, and regulated 3.3 V systems without level-shifting. |
| Low-Power Performance | 0.1 µA in LPM4 (RAM retention); extends battery life in intermittently active sensor nodes beyond 10 years on CR2032. |
| Wake-Up Time | < 1 µs from standby to active mode; ensures precise timing control for event-triggered sampling and RF burst transmission. |
Pinout & Package
Package: 14-pin TSSOP (PW), RoHS-compliant, body size 5.0 mm × 4.4 mm × 1.2 mm, thermal pad not present.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TACLK/ACLK/A0+ | Port 1 bit 0 / Timer_A clock input / Auxiliary clock output / SD16_A positive input | Configurable as system clock source, timer trigger, or high-impedance analog input for differential pair A0+/A0−. |
| P1.1/TA0/A0−/A4+ | Port 1 bit 1 / Timer_A capture/compare / SD16_A negative input / positive input for A4 | Supports differential measurement on A0 channel or single-ended input on A4; also serves as TA0 interrupt source. |
| P1.2/TA1/A1+/A4− | Port 1 bit 2 / Timer_A capture/compare / SD16_A positive input / negative input for A4 | Enables dual-channel differential acquisition (A1+/A1−, A4+/A4−) or shared use with Timer_A for synchronized timing. |
| P1.3/VREF/A1− | Port 1 bit 3 / External reference input / SD16_A negative input for A1 | Accepts external mid-voltage reference or functions as A1− for differential measurement; sets common-mode voltage. |
| P1.4/SMCLK/A2+/TCK | Port 1 bit 4 / Sub-main clock output / SD16_A positive input / JTAG test clock | Drives peripheral clocks while simultaneously serving as analog input; eliminates need for separate clock routing in compact layouts. |
| P1.5/TA0/A2−/SCLK/TMS | Port 1 bit 5 / Timer_A compare / SD16_A negative input / USI clock / JTAG mode select | Combines timing, analog, and debug functions; allows in-system programming and sensor interface on same pin group. |
| P1.6/TA1/A3+/SDO/SCL/TDI/TCLK | Port 1 bit 6 / Timer_A compare / SD16_A positive input / USI data out / I²C clock / JTAG data in | Multi-function pin enabling SPI slave/I²C master operation, timer output, and debug access - reduces external component count. |
| P1.7/A3−/SDI/SDA/TDO/TDI | Port 1 bit 7 / SD16_A negative input / USI data in / I²C data / JTAG data out/in | Completes full-duplex USI interface and differential ADC channel A3; supports JTAG boundary scan during production test. |
| XIN/P2.6/TA1 | Clock input / Port 2 bit 6 / Timer_A compare | Accepts 32-kHz crystal or external clock; doubles as TA1 output for PWM generation or timing synchronization. |
| XOUT/P2.7 | Clock output / Port 2 bit 7 | Drives crystal load or feeds clock to secondary circuitry; configured as GPIO when crystal not used. |
| RST/NMI/SBWTDIO | Reset / non-maskable interrupt / Spy-Bi-Wire data I/O | Single-pin reset and debug interface; supports secure programming and field firmware updates via two-wire interface. |
| TEST/SBWTCK | Spy-Bi-Wire test clock input | Dedicated programming clock pin; enables low-pin-count in-circuit debugging without full JTAG connector. |
| VCC | Power supply | 1.8–3.6 V digital/analog supply; no separate AVCC/DVCC pins required - simplifies power design for space-constrained PCBs. |
| VSS | Ground reference | Common return path for analog and digital domains; requires solid ground plane for SD16_A noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| 16-bit Sigma-Delta ADC (SD16_A) | Provides 16-bit resolution with differential PGA inputs and internal reference - eliminates external op-amps and reference ICs in precision sensor interfaces. |
| Universal Serial Interface (USI) | Hardware-accelerated SPI and I²C on shared pins - reduces firmware overhead and enables concurrent analog acquisition and sensor communication. |
| Sub-1 µs wake-up from LPM3/LPM4 | Enables ultra-low-duty-cycle operation: device sleeps at 0.1 µA, wakes instantly to sample sensor, process, and transmit - maximizing battery longevity. |
| Digital I/O with configurable pullups/pulldowns | All 10 I/O pins (P1.0–P1.7, P2.6–P2.7) support independent direction, interrupt edge, and weak pull configuration - simplifies button, switch, and LED interfacing. |
| Factory-calibrated DCO | Four factory-trimmed DCO frequencies (1/8/12/16 MHz) with ±1% accuracy - removes need for external crystal in cost-sensitive applications where timing tolerance permits. |
Applications
| Wireless Sensor Node Front End | Portable Gas Detection System |
|---|---|
|
Use Scenario: Battery-powered node acquires analog signals from electrochemical gas sensors, performs baseline correction and temperature compensation, then transmits via sub-GHz RF transceiver. IC Role / Device Role / Timing Role: MSP430F2003IRSAT acts as primary signal acquisition and preprocessing engine, using SD16_A for picoamp-level current measurement and USI to drive RF module's SPI interface. Use Value: Integrated differential PGA and 16-bit resolution enable direct digitization of weak sensor outputs; sub-1 µs wake-up ensures accurate time-stamping of transient gas events. |
Use Scenario: Handheld detector monitors CO, NO₂, or VOC levels using multiple analog sensor elements, displays results on segmented LCD, and logs data to internal Flash. IC Role / Device Role / Timing Role: MSP430F2003IRSAT serves as system controller and analog hub - managing sensor biasing, performing ratiometric ADC conversions, and driving LCD via GPIO. Use Value: Single-supply 1.8–3.6 V operation matches coin-cell or rechargeable LiPo voltage profiles; 128 B RAM suffices for real-time filtering and alarm thresholding. |
| Smart Meter Tamper Detection Module | Industrial Temperature Monitor |
|
Use Scenario: Small-form-factor add-on board detects magnetic tampering, case opening, or voltage sags in utility meters, then triggers secure event logging. IC Role / Device Role / Timing Role: MSP430F2003IRSAT functions as autonomous security monitor - sampling Hall effect and voltage divider inputs via SD16_A, verifying thresholds, and asserting tamper flag. Use Value: Brownout detector and LPM4 retention guarantee reliable state-hold during brief power interruptions; Spy-Bi-Wire enables field firmware updates without meter disassembly. |
Use Scenario: DIN-rail mounted module reads RTD or thermistor networks in HVAC or process control cabinets, communicates via I²C to main PLC controller. IC Role / Device Role / Timing Role: MSP430F2003IRSAT operates as isolated analog front-end - applying programmable gain to bridge outputs and performing cold-junction compensation. Use Value: Differential SD16_A inputs reject common-mode noise from industrial EMI; USI's I²C master mode drives remote sensor nodes without additional level translators. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F2013IRSAT | 2 KB Flash + 256 B info memory, identical peripherals and pinout | Supports larger firmware with bootloader, complex sensor fusion algorithms, or extended calibration tables | Select when firmware exceeds 1 KB or future scalability is required; drop-in replacement with no layout change. |
| MSP430G2553IPW20 | 16-pin TSSOP, 16 KB Flash, 512 B RAM, USI, 10-bit SAR ADC (not SD16_A), no factory DCO calibration | Better suited for general-purpose control with higher code footprint; lacks integrated PGA and differential SD16_A precision | Choose for cost-optimized designs needing more Flash/RAM but tolerating lower analog accuracy; requires external op-amp for microvolt-level signals. |
Compared with MSP430F2013IRSAT, the MSP430F2003IRSAT trades Flash capacity for minimal BOM cost in fixed-function sensor nodes; versus MSP430G2553IPW20, it delivers superior analog performance per mA and eliminates external signal conditioning - critical for nanoamp sensor interfaces.
Availability
MSP430F2003IRSAT is available at Aetrix Electronics and suitable for wireless sensor nodes, portable gas detectors, smart meter security modules, and industrial temperature monitors requiring stable component supply across multi-year production cycles.
Supply support for MSP430F2003IRSAT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity technologies with over 50 years of innovation in low-power design.
The MSP430F20xx series was engineered specifically for ultra-low-power sensing applications - integrating precision analog, intelligent peripherals, and rapid wake-up capability into minimal-footprint MCUs for battery-operated instrumentation.
FAQ
What is the maximum operating frequency of the MSP430F2003IRSAT?
The MSP430F2003IRSAT supports a maximum CPU clock frequency of 16 MHz via its factory-calibrated digitally controlled oscillator (DCO). This frequency is achievable without external crystal, with ±1% accuracy at 25°C, and enables sub-1 µs instruction execution for time-critical sensor sampling routines within the MSP430F2003IRSAT architecture.
Does the MSP430F2003IRSAT include a hardware UART?
No, the MSP430F2003IRSAT does not include a dedicated hardware UART. It features a Universal Serial Interface (USI) module that supports SPI and I²C protocols only. Asynchronous serial communication (UART) must be implemented in firmware using Timer_A and GPIO, which is feasible but consumes CPU cycles and increases code size in the MSP430F2003IRSAT implementation.
What analog input configurations does the SD16_A module support on the MSP430F2003IRSAT?
The SD16_A module on the MSP430F2003IRSAT supports fully differential inputs with programmable gain across eight channels (A0±, A1±, A2±, A3±, A4±), plus single-ended modes using internal reference. Inputs are routed through P1.0–P1.7 and P2.6–P2.7, with dedicated VREF pin (P1.3) for external mid-voltage bias - all confirmed in the MSP430F2003IRSAT functional block diagram and Table 4.
Is the MSP430F2003IRSAT pin-compatible with other devices in the MSP430F20xx family?
Yes, the MSP430F2003IRSAT is pin-compatible with all TSSOP-14 variants in the MSP430F20xx family (e.g., MSP430F2001IRSAT, MSP430F2013IRSAT), sharing identical pin functions and electrical characteristics per TI SLAS491I. This allows hardware reuse across different Flash/RAM configurations without PCB redesign for the MSP430F2003IRSAT footprint.
What programming interface does the MSP430F2003IRSAT use, and is external voltage required?
The MSP430F2003IRSAT uses Spy-Bi-Wire (2-wire JTAG) for programming and debugging, requiring only TEST/SBWTCK and RST/NMI/SBWTDIO pins. No external programming voltage is needed - full Flash and RAM programming occurs at standard VCC (1.8–3.6 V), as specified in the MSP430F2003IRSAT datasheet feature list and functional description.
MSP430F2003IRSAT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 16-VQFN Exposed Pad
- Series:
- MSP430F2xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- MSP430 CPU16
- Core Size:
- 16-Bit
- Speed:
- 16MHz
- Connectivity:
- I2C, SPI
- Peripherals:
- Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O:
- 10
- Program Memory Size:
- 1KB (1K x 8 + 256B)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 128 x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 10x16b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430F2003IRSAT FAQ
1.How can I place an order for MSP430F2003IRSAT through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F2003IRSAT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MSP430F2003IRSAT reliable?
The price and inventory of MSP430F2003IRSAT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F2003IRSAT is usually 5 days.
3.What payment methods are accepted for MSP430F2003IRSAT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F2003IRSAT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F2003IRSAT?
MSP430F2003IRSAT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F2003IRSAT order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MSP430F2003IRSAT?
For technical support, including MSP430F2003IRSAT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F2003IRSAT requirements.
6.How does Aetrix verify that MSP430F2003IRSAT is sourced from the original manufacturer or authorized distributors?
All MSP430F2003IRSAT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MSP430F2003IRSAT meets industry standards.
7.What is the process for return or replacement of MSP430F2003IRSAT?
All MSP430F2003IRSAT units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F2003IRSAT, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MSP430F2003IRSAT part is unused and in its original packaging.
Return procedure for MSP430F2003IRSAT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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