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Texas Instruments MSP430G2203IPW28R
- Part No.:
- MSP430G2203IPW28R
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 28-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MSP430G2203IPW28R.pdf
- Description:
- IC MCU 16BIT 2KB FLASH 28TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,646
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Product details
Overview
MSP430G2203IPW28R from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller in 28-pin TSSOP packaging, featuring 2 KB flash, 256 B RAM, two 16-bit Timer_A modules, USCI with UART/I²C/SPI support, and 24 capacitive-touch-capable I/O pins. It operates from 1.8 V to 3.6 V and targets battery-powered sensor nodes and portable measurement systems.
For engineers reviewing the MSP430G2203IPW28R datasheet, MSP430G2203IPW28R pinout, MSP430G2203IPW28R application, or MSP430G2203IPW28R equivalent, key selection criteria include active-mode current (230 µA @ 1 MHz, 2.2 V), wake-up time (<1 µs from standby), Spy-Bi-Wire debug interface, and absence of integrated ADC - distinguishing it from G2x33 variants.
Technical Context
The MSP430G2203IPW28R implements a 16-bit CPU with constant generators for optimized code efficiency and supports five low-power modes. Its clock system integrates a digitally controlled oscillator (DCO) calibrated at factory for 1/8/12/16 MHz, plus internal VLO and external 32-kHz crystal or digital clock input.
Peripheral integration includes USCI_A0 (UART/LIN/IrDA/SPI) and USCI_B0 (SPI/I²C), two 16-bit Timer_A units each with three capture/compare registers, and Schmitt-trigger inputs across all I/O ports. Port P3 - available only on 28- and 32-pin packages - provides eight additional GPIOs with pullup/pulldown control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 62.5-ns instruction cycle; enables deterministic real-time control in resource-constrained embedded designs. |
| Flash / RAM | 2 KB flash memory and 256 B RAM; sufficient for compact firmware with bootloader (BSL) and minimal data buffering. |
| Supply Voltage | 1.8 V to 3.6 V operating range; supports direct connection to single-cell Li-ion, Li-polymer, or dual-AA alkaline batteries. |
| Active Current | 230 µA at 1 MHz, 2.2 V; enables multi-year operation in intermittent-sensing applications with duty-cycled wake-ups. |
| Wake-up Time | <1 µs from LPM3/LPM4 to active mode; critical for ultra-low-latency event response in interrupt-driven sensor systems. |
| Debug Interface | Spy-Bi-Wire (2-wire JTAG); reduces PCB footprint and routing complexity versus full 4-wire JTAG while supporting full emulation. |
| I/O Count | 24 capacitive-touch-enabled GPIOs (P1.x, P2.x, P3.x); allows direct integration of touch buttons/sliders without external controllers. |
Pinout & Package
Package: TSSOP-28 (PW28), 9.7 mm × 4.4 mm body size, surface-mount, lead-free, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, DVCC | Digital supply voltage input | Primary power rail for core logic and digital I/O; requires local 100-nF decoupling to ground. |
| 2, P1.0/TA0CLK/ACLK/A0 | Multi-function I/O | Configurable as timer clock input, ACLK output, or analog input channel 0 - but no ADC on MSP430G2203IPW28R. |
| 24, RST/NMI/SBWTDIO | Reset & debug bidirectional pin | Active-low reset input, non-maskable interrupt source, and Spy-Bi-Wire data I/O - shared function requiring careful boot-state handling. |
| 25, TEST/SBWTCK | Test clock & debug input | Enables Spy-Bi-Wire programming/debugging; must be pulled high during normal operation to avoid unintended entry into test mode. |
| 26–27, XOUT/XIN | Crystal oscillator terminals | Supports external 32-kHz watch crystal; internal load capacitance configurable via SFRs to match 9-pF crystal requirement. |
| 28, DVSS | Digital ground reference | Common return path for digital circuitry; must be connected to system ground plane with low-inductance layout. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | Standby current of 0.5 µA and off-mode (RAM retention) current of 0.1 µA enable decade-scale battery life in sleep-dominated applications. |
| Integrated communication peripherals | USCI_A0 supports LIN-compliant automatic baud-rate detection and IrDA encoding; USCI_B0 provides hardware I²C master/slave with clock stretching. |
| Capacitive-touch I/O capability | All 24 GPIOs support capacitive sensing via built-in comparator and timer-based charge-transfer measurement - no external components required. |
| Factory-calibrated DCO | Four factory-trimmed DCO frequencies (1/8/12/16 MHz) eliminate need for external crystal in cost-sensitive timing applications where ±3% accuracy suffices. |
| On-chip emulation logic | Spy-Bi-Wire interface enables full-speed debugging, flash programming, and real-time register inspection using TI MSP-FET or compatible tools. |
Applications
| Smart Sensor Node | Industrial Control Panel |
|---|---|
|
Use Scenario: Battery-powered temperature/humidity sensor transmitting data wirelessly every 5 minutes. IC Role / Device Role / Timing Role: Central controller managing sensor acquisition, low-power sleep scheduling, UART communication with RF module, and brownout-safe state retention. Use Value: 0.1 µA off-mode current extends CR2032 battery life beyond 5 years; <1 µs wake-up ensures precise timing of sensor sampling and radio transmission windows. |
Use Scenario: Touch-enabled HMI for HVAC or lighting control in commercial buildings. IC Role / Device Role / Timing Role: Capacitive-touch processor scanning up to 24 buttons/sliders, debouncing inputs, and communicating status via I²C to main MCU. Use Value: Integrated touch I/O eliminates external touch controller IC and associated firmware overhead; Schmitt-trigger inputs ensure noise immunity in electrically noisy environments. |
| Portable Medical Monitor | Energy Harvesting System |
|
Use Scenario: Wearable pulse oximeter using photodiode signals and driving LED drivers. IC Role / Device Role / Timing Role: Signal conditioning coordinator, timer-synchronized LED pulsing, and UART telemetry to smartphone app. Use Value: 230 µA active current at 1 MHz minimizes energy draw during brief measurement bursts; 1.8 V minimum supply enables operation directly from thin-film energy harvesters. |
Use Scenario: Solar- or thermal-harvested power management for wireless sensor networks. IC Role / Device Role / Timing Role: Supervisor monitoring harvested voltage, controlling storage capacitor charging, and waking system only when sufficient energy is available. Use Value: Brownout detector triggers safe shutdown below 1.8 V; programmable security fuse prevents unauthorized firmware access in unattended deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430G2233IPW28R | Includes 10-bit, 8-channel ADC; identical package, flash/RAM, timers, and USCI peripherals. | Required when analog signal acquisition (e.g., thermistor, potentiometer) is needed alongside touch I/O and communication. | Select MSP430G2233IPW28R if ADC functionality is essential; otherwise, MSP430G2203IPW28R offers lower cost and same power/performance for digital-only use cases. |
| MSP430G2103IPW28R | 1 KB flash, 128 B RAM, no USCI_B0 (I²C/SPI slave), reduced timer resources (one Timer_A). | Suitable for simpler control tasks with minimal firmware and no I²C peripheral dependency. | Choose MSP430G2103IPW28R only for highly constrained cost/size budgets where 1 KB flash and absence of I²C are acceptable trade-offs. |
Compared with MSP430G2233IPW28R, the MSP430G2203IPW28R saves cost and silicon area by omitting the ADC while retaining identical low-power performance, touch I/O, and communication capabilities - making it optimal for purely digital sensor interfaces and touch HMIs.
Availability
MSP430G2203IPW28R is available at Aetrix Electronics and suitable for smart sensor nodes, industrial HMI panels, portable medical monitors, and energy harvesting systems requiring stable component supply and long-term manufacturability.
Supply support for MSP430G2203IPW28R 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 delivering analog, embedded processing, and connectivity solutions with emphasis on power efficiency, reliability, and system-level integration.
The MSP430G2xx family delivers ultra-low-power mixed-signal microcontrollers targeting cost-sensitive, battery-operated applications such as sensor interfaces, touch controls, and portable instrumentation - with architecture optimized for extended battery life and rapid wake-up responsiveness.
FAQ
Does the MSP430G2203IPW28R include an analog-to-digital converter (ADC)?
No, the MSP430G2203IPW28R does not integrate an ADC. It belongs to the G2x03 subfamily, which omits the 10-bit ADC present in G2x33 variants like MSP430G2233IPW28R. All analog input pin designations (e.g., A0–A7) on the MSP430G2203IPW28R are reserved for future compatibility or unused functions - they do not connect to internal conversion circuitry. Designers requiring analog sensing must select a G2x33 part or add an external ADC.
What is the maximum system clock frequency supported by the MSP430G2203IPW28R?
The MSP430G2203IPW28R supports a maximum system clock (MCLK) frequency of 16 MHz at VCC = 3.3 V, 12 MHz at VCC = 2.7 V, and 6 MHz at VCC = 1.8 V, per its recommended operating conditions. These limits reflect safe timing margins for flash execution and peripheral operation. The DCO is factory-calibrated at four frequencies (1/8/12/16 MHz), and higher precision timing requires an external crystal oscillator.
Can the MSP430G2203IPW28R be programmed and debugged using standard JTAG tools?
The MSP430G2203IPW28R uses Spy-Bi-Wire (SBW), a 2-wire subset of JTAG, for programming and debugging. It is incompatible with standard 4-wire JTAG adapters but fully supported by TI's MSP-FET, MSP430 LaunchPad development kits, and third-party SBW-compatible debuggers. The RST/NMI/SBWTDIO and TEST/SBWTCK pins serve as the dedicated SBW interface - no additional pins or level shifters are required.
How many I/O pins on the MSP430G2203IPW28R support capacitive touch sensing?
All 24 general-purpose I/O pins (P1.0–P1.7, P2.0–P2.7, P3.0–P3.7) on the MSP430G2203IPW28R support capacitive touch sensing using the integrated comparator and Timer_A-based charge-transfer method. This capability is enabled by hardware features including programmable hysteresis, internal reference voltage, and dedicated capture/compare registers - requiring no external components for basic touch button implementation.
What are the power supply requirements for programming the flash memory of the MSP430G2203IPW28R?
Flash programming and erase operations on the MSP430G2203IPW28R require a minimum VCC of 2.2 V, as specified in the recommended operating conditions. Supply voltage must remain within 2.2 V to 3.6 V during these operations. The device supports serial onboard programming via Spy-Bi-Wire without external programming voltage - eliminating need for VPP pins or high-voltage generators in production or field updates.
MSP430G2203IPW28R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 28-TSSOP (0.173", 4.40mm Width)
- Series:
- MSP430G2xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- MSP430 CPU16
- Core Size:
- 16-Bit
- Speed:
- 16MHz
- Connectivity:
- I2C, IrDA, LINbus, SCI, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, PWM, WDT
- Number of I/O:
- 24
- Program Memory Size:
- 2KB (2K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 256 x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- -
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430G2203IPW28R FAQ
1.How can I place an order for MSP430G2203IPW28R through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430G2203IPW28R 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 MSP430G2203IPW28R reliable?
The price and inventory of MSP430G2203IPW28R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430G2203IPW28R is usually 5 days.
3.What payment methods are accepted for MSP430G2203IPW28R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430G2203IPW28R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430G2203IPW28R?
MSP430G2203IPW28R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430G2203IPW28R 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 MSP430G2203IPW28R?
For technical support, including MSP430G2203IPW28R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430G2203IPW28R requirements.
6.How does Aetrix verify that MSP430G2203IPW28R is sourced from the original manufacturer or authorized distributors?
All MSP430G2203IPW28R 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 MSP430G2203IPW28R meets industry standards.
7.What is the process for return or replacement of MSP430G2203IPW28R?
All MSP430G2203IPW28R units undergo pre-shipment inspection (PSI). If there is an issue with MSP430G2203IPW28R, 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 MSP430G2203IPW28R part is unused and in its original packaging.
Return procedure for MSP430G2203IPW28R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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