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Texas Instruments MSP430G2203IPW20R
- Part No.:
- MSP430G2203IPW20R
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MSP430G2203IPW20R.pdf
- Description:
- IC MCU 16BIT 2KB FLASH 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,515
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Product details
Overview
MSP430G2203IPW20R from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller in 20-pin TSSOP packaging, featuring 2 KB flash, 256 B RAM, two 16-bit Timer_A modules, USCI (UART/I²C/SPI), and 16 I/O pins with capacitive-touch capability - designed for battery-powered sensor nodes and portable measurement systems.
For engineers reviewing the MSP430G2203IPW20R datasheet, MSP430G2203IPW20R pinout, MSP430G2203IPW20R application, or MSP430G2203IPW20R equivalent, key selection criteria include active-mode current at 1 MHz (230 µA @ 2.2 V), wake-up time from standby (<1 µs), supply voltage range (1.8–3.6 V), and Spy-Bi-Wire debug interface compatibility.
Technical Context
The MSP430G2203IPW20R implements a digitally controlled oscillator (DCO) with four factory-calibrated frequencies (up to 16 MHz), internal VLO and external crystal (32 kHz) support, and a basic clock module enabling flexible low-power system timing. Its architecture includes constant generators and 16-bit registers optimized for code efficiency in energy-constrained environments.
It integrates USCI_A0 (UART/LIN/IrDA/SPI) and USCI_B0 (SPI/I²C) peripherals, but excludes ADC10 - distinguishing it from the G2x33 family. All I/O pins support interrupt capability, pullup/pulldown resistors, and Schmitt-trigger inputs, with Port P1 and P2 fully accessible in the 20-pin PW package.
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 compact firmware. |
| Flash / RAM | 2 KB flash memory and 256 B RAM - sufficient for sensor data acquisition, protocol stacks, and low-complexity control logic. |
| Supply Voltage | 1.8 V to 3.6 V operating range - supports direct connection to single-cell Li-ion, alkaline, or coin-cell batteries without regulation. |
| Active Current | 230 µA at 1 MHz, 2.2 V - allows multi-year operation on CR2032 when paired with duty-cycled sensing. |
| Wake-up Time | <1 µs from standby mode - critical for responsive event-driven wake-up in wireless sensor endpoints. |
| Low-Power Modes | Five power-saving modes including LPM4 (0.1 µA RAM retention) - extends battery life in intermittent-sampling applications. |
| Debug Interface | Spy-Bi-Wire (2-wire JTAG) - enables in-system programming and debugging with minimal PCB footprint and pin count. |
Pinout & Package
Package: 20-pin TSSOP (PW20), 6.5 mm × 4.4 mm body size, surface-mount, lead-free, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - DVCC | Digital supply voltage | Primary 1.8–3.6 V power input for core logic and digital I/O banks. |
| 2 - P1.0/TA0CLK/ACLK/A0 | Multi-function I/O | Configurable as timer clock input, ACLK output, or general-purpose I/O; no ADC channel (ADC absent in G2203). |
| 3–4 - NC / P1.1/TA0.0/UCA0RXD/A1 | Multi-function I/O | P1.1 supports UART receive, Timer0_A compare/capture, and digital I/O; A1 designation is placeholder only (no ADC). |
| 5 - P1.3/ADC10CLK/VREF-/VEREF-/A3 | Multi-function I/O | ADC10CLK and reference pins are inactive; VREF-/VEREF- functions disabled - no ADC subsystem present. |
| 6–7 - P1.4/SMCLK/UCB0STE/UCA0CLK/A4 / P1.5/TA0.0/UCB0CLK/UCA0STE/A5 | Multi-function I/O | Support SPI/I²C clocking and UART control; A4/A5 labels are retained for pin compatibility but unused (no ADC). |
| 14–15 - P1.6/TA0.1/UCB0SOMI/UCB0SCL/A6 / P1.7/UCB0SIMO/UCB0SDA/A7 | Multi-function I/O | Enable I²C master/slave (SCL/SDA) and SPI slave (SOMI/SIMO); A6/A7 labels are legacy placeholders only. |
| 8–13 - P2.0–P2.5/TA1.x | Timer1_A I/O | Support capture/compare on Timer1_A channels; all six pins configurable as general-purpose I/O with interrupt capability. |
| 16 - RST/NMI/SBWTDIO | Reset & debug I/O | Active-low reset, non-maskable interrupt input, and bidirectional Spy-Bi-Wire data line - shared function for minimal pin count. |
| 17 - TEST/SBWTCK | Debug clock input | Test mode select and Spy-Bi-Wire clock input - required for programming and boundary-scan testing. |
| 18–19 - XOUT/P2.7 / XIN/P2.6/TA0.1 | Crystal oscillator interface | Supports 32-kHz crystal for low-power real-time clock; XIN also serves as Timer0_A compare output. |
| 20 - DVSS | Digital ground | Reference return path for digital supply; must be connected to system ground plane with low-impedance trace. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.1 µA in LPM4 (RAM retention) enables decade-scale battery life in always-on sensor monitors. |
| Digital-controlled oscillator (DCO) | Four factory-calibrated frequencies (up to 16 MHz) eliminate need for external crystal in many timing-critical applications. |
| Spy-Bi-Wire debug interface | 2-pin in-system programming and real-time debugging reduces test access requirements and PCB routing complexity. |
| Capacitive-touch I/O capability | Up to 16 pins support capacitive sensing without external components - ideal for low-cost touch-button interfaces. |
| USCI communication modules | Dual USCI (A0 + B0) provides hardware UART, I²C, and SPI simultaneously - simplifies connectivity to sensors, radios, and displays. |
Applications
| Smart Utility Meter Sensor Node | Industrial Temperature Monitor |
|---|---|
|
Use Scenario: Battery-powered meter reading unit sampling thermistor and humidity sensors every 15 minutes, transmitting via sub-GHz RF link. IC Role / Device Role: Central controller managing sensor acquisition, low-power sleep scheduling, UART-based RF module command, and Spy-Bi-Wire field firmware updates. Use Value: 0.1 µA LPM4 current and sub-µs wake-up minimize average current draw, extending CR123A battery life beyond 10 years. |
Use Scenario: DIN-rail mounted enclosure monitoring motor winding temperature using PT100 RTDs and reporting via RS-485 Modbus. IC Role / Device Role: Isolated signal conditioner and protocol translator interfacing analog front-end and half-duplex RS-485 transceiver via USCI_A0 UART. Use Value: 1.8 V minimum supply enables direct operation from industrial 3.3 V rail; robust ESD rating (±1000 V HBM) ensures reliability in noisy factory environments. |
| Capacitive Touch Remote Control | Portable Medical Diagnostic Cuff |
|
Use Scenario: Coin-cell powered remote with 8-button touch interface controlling HVAC and lighting via IR transmission. IC Role / Device Role: Capacitive touch scanner, IR carrier generation (via Timer_A PWM), and button debouncing logic - all in one chip. Use Value: Integrated capacitive-touch I/O eliminates dedicated touch controller IC and associated BOM cost; 16 programmable touch pins simplify layout. |
Use Scenario: Handheld blood pressure cuff acquiring oscillometric waveform, calculating systolic/diastolic values, and storing 30 readings. IC Role / Device Role: Main controller executing algorithm, driving LCD via GPIO, managing button inputs, and logging data to internal flash. Use Value: 2 KB flash and 256 B RAM accommodate firmware plus ring-buffer storage; ultra-low standby current preserves charge between patient sessions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430G2233IPW20R | Includes 10-bit ADC with 8 channels; identical package, flash/RAM, timers, and USCI peripherals. | Required where analog sensor interfacing (e.g., thermistor, potentiometer) is needed without external ADC. | Select when analog signal acquisition is essential; otherwise, MSP430G2203IPW20R offers lower cost and same power/performance for digital-only use cases. |
| MSP430FR2111IPW16R | Ferroelectric RAM (FRAM) instead of flash; 1 KB FRAM, 1 KB RAM; enhanced write endurance and faster write speed. | Better suited for frequent data logging or over-the-air firmware updates due to FRAM's 10¹⁴ write cycles and zero write latency. | Choose for high-write-cycle applications; MSP430G2203IPW20R remains optimal for static firmware with infrequent updates and lowest BOM cost. |
Compared with MSP430G2233IPW20R, the MSP430G2203IPW20R removes ADC functionality to reduce cost and power, while retaining identical low-power performance and I/O capabilities; versus MSP430FR2111IPW16R, it trades FRAM advantages for proven flash reliability and broader toolchain support in legacy designs.
Availability
MSP430G2203IPW20R is available at Aetrix Electronics and suitable for smart utility meters, industrial sensor nodes, capacitive-touch remotes, and portable medical devices requiring stable component supply across long production lifecycles.
Supply support for MSP430G2203IPW20R 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 energy efficiency and system integration.
The MSP430G2xx family targets cost-sensitive, ultra-low-power applications such as battery-operated sensors, touch interfaces, and simple control systems - prioritizing microwatt operation and rapid wake-up over raw compute throughput.
FAQ
Does the MSP430G2203IPW20R include an analog-to-digital converter (ADC)?
No, the MSP430G2203IPW20R does not include an ADC. It belongs to the G2x03 subfamily, which omits the 10-bit ADC present in the G2x33 variants (e.g., MSP430G2233IPW20R). Pin functions labeled A0–A7 are retained for mechanical compatibility but are not connected to internal analog circuitry in the MSP430G2203IPW20R.
What is the maximum system clock frequency supported by the MSP430G2203IPW20R?
The MSP430G2203IPW20R supports up to 16 MHz MCLK when VCC ≥ 3.3 V, 12 MHz at 2.7 V, and 6 MHz at 1.8 V. These limits are defined by the DCO's calibrated frequencies and ensure reliable operation under recommended supply conditions per SLAS734G Section 5.3.
Can the MSP430G2203IPW20R drive an I²C bus directly?
Yes, the MSP430G2203IPW20R can drive an I²C bus directly using USCI_B0. Pins P1.6 (UCB0SCL) and P1.7 (UCB0SDA) support open-drain I²C signaling with software-configurable pullups. No external level shifter or bus buffer is required for standard 3.3 V or 1.8 V I²C operation.
Is the MSP430G2203IPW20R pin-compatible with other devices in the MSP430G2xx family?
The MSP430G2203IPW20R shares the same 20-pin TSSOP (PW20) footprint and pin mapping with MSP430G2233IPW20R, MSP430G2303IPW20R, and MSP430G2333IPW20R. However, functional differences - especially absence of ADC and variant-specific peripheral enablement - require firmware and schematic review before substitution.
What debug interface does the MSP430G2203IPW20R support?
The MSP430G2203IPW20R supports Spy-Bi-Wire (SBW), a 2-wire variant of JTAG, using pins RST/NMI/SBWTDIO (Pin 16) and TEST/SBWTCK (Pin 17). This interface enables full in-system programming, breakpoint debugging, and memory inspection via TI's MSP-FET or compatible tools.
MSP430G2203IPW20R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- Series:
- MSP430G2xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- 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:
- 16
- 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:
MSP430G2203IPW20R FAQ
1.How can I place an order for MSP430G2203IPW20R through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430G2203IPW20R 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 MSP430G2203IPW20R reliable?
The price and inventory of MSP430G2203IPW20R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430G2203IPW20R is usually 5 days.
3.What payment methods are accepted for MSP430G2203IPW20R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430G2203IPW20R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430G2203IPW20R?
MSP430G2203IPW20R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430G2203IPW20R 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 MSP430G2203IPW20R?
For technical support, including MSP430G2203IPW20R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430G2203IPW20R requirements.
6.How does Aetrix verify that MSP430G2203IPW20R is sourced from the original manufacturer or authorized distributors?
All MSP430G2203IPW20R 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 MSP430G2203IPW20R meets industry standards.
7.What is the process for return or replacement of MSP430G2203IPW20R?
All MSP430G2203IPW20R units undergo pre-shipment inspection (PSI). If there is an issue with MSP430G2203IPW20R, 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 MSP430G2203IPW20R part is unused and in its original packaging.
Return procedure for MSP430G2203IPW20R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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