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Texas Instruments MSP430G2202IPW20R
- Part No.:
- MSP430G2202IPW20R
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MSP430G2202IPW20R.pdf
- Description:
- IC MCU 16BIT 2KB FLASH 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,823
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Product details
Overview
MSP430G2202IPW20R from Texas Instruments is an ultra-low-power 16-bit RISC mixed-signal microcontroller in 20-pin TSSOP package, featuring 2 kB Flash, 256 B RAM, one 16-bit Timer_A with three capture/compare registers, Universal Serial Interface (USI) for SPI/I²C, and support for up to 16 capacitive-touch I/O pins. It operates from 1.8 V to 3.6 V and targets battery-powered sensor nodes and portable instrumentation.
For engineers reviewing the MSP430G2202IPW20R datasheet, MSP430G2202IPW20R pinout, MSP430G2202IPW20R application, or MSP430G2202IPW20R equivalent, this page delivers verified technical context, exact pin functions, low-power mode behavior, USI peripheral configuration, and validated alternative options for cost-optimized embedded designs.
Technical Context
The MSP430G2202IPW20R implements a 16-bit CPU with seven addressing modes and 51 instructions, executing register-to-register operations in one CPU clock cycle. Its basic clock module integrates a digitally controlled oscillator (DCO) calibrated at 1/8/12/16 MHz, plus internal LF and external 32-kHz crystal support - enabling sub-1 µs wake-up from LPM4.
It includes Spy-Bi-Wire on-chip emulation, brownout detection, and WDT+ configurable as interval timer or system reset source. Unlike MSP430G2x32 variants, it lacks ADC10 functionality - confirmed by Table 1 and "ADC10 pin functions are available only on MSP430G2x32" notes across documentation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 16 general-purpose registers; enables efficient C code execution and deterministic interrupt latency. |
| Flash / RAM | 2 kB Flash program memory + 256 B RAM; sufficient for compact firmware with real-time sensor processing and communication stacks. |
| Supply Voltage | 1.8 V to 3.6 V operation; supports direct connection to single Li-ion cell or two alkaline cells without regulation. |
| Active Current | 220 µA at 1 MHz, 2.2 V; enables multi-year battery life in duty-cycled sensing applications. |
| Low-Power Modes | Five software-selectable modes including LPM4 (0.1 µA RAM retention); critical for energy harvesting and intermittent wake-up systems. |
| USI Interface | Hardware SPI and I²C support via single USI module; eliminates bit-banging overhead and ensures timing-critical bus compliance. |
| Timer_A | 16-bit Timer_A with three capture/compare registers (TA0.0/TA0.1/TA0.2); enables PWM generation, input capture, and precise timebase for RTOS tick or sensor sampling. |
Pinout & Package
Package: 20-pin TSSOP (PW), 0.65 mm pitch, body size 6.5 × 4.4 mm. Pinout validated per SLAS723H Figure 1 (PW PACKAGE, TOP VIEW) and Table 2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DVCC (Pin 1) | Power supply | Main digital supply voltage input (1.8–3.6 V); requires local 100 nF decoupling to DVSS. |
| P1.0/TA0CLK/ACLK/A0 (Pin 2) | Multiplexed I/O | Configurable as Timer_A clock input, ACLK output, or analog input A0 - but A0 is not functional on G2202 (no ADC10). |
| P1.1/TA0.0/A1 (Pin 3) | Multiplexed I/O | Timer_A capture/compare channel 0; no ADC function (A1 disabled on G2202 per device family distinction). |
| P1.2/TA0.1/A2 (Pin 4) | Multiplexed I/O | Timer_A capture/compare channel 1; A2 unavailable - ADC10 excluded from MSP430G2x02 series. |
| P1.3/ADC10CLK/VREF-/VEREF-/A3 (Pin 5) | Input-only (functionally unused) | ADC10-specific signals; all inactive on MSP430G2202IPW20R - pin usable only as general-purpose I/O or TA0CLK source. |
| P1.4/TA0.2/SMCLK/A4/TCK (Pin 6) | Multiplexed I/O | Timer_A channel 2, SMCLK output, or JTAG test clock; TCK enables programming via Spy-Bi-Wire interface. |
| P1.5/TA0.0/SCLK/A5/TMS (Pin 7) | Multiplexed I/O | Timer_A channel 0 output or USI SPI clock; TMS enables JTAG boundary scan and fuse programming. |
| P1.6/TA0.1/SDO/SCL/A6/TDI/TCLK (Pin 8) | Multiplexed I/O | Timer_A channel 1 output, USI SPI data out, or I²C clock; TDI enables test data input during programming. |
| P1.7/SDI/SDA/A7/TDO/TDI (Pin 9) | Multiplexed I/O | USI SPI data in or I²C data line; TDO/TDI supports Spy-Bi-Wire debug interface - primary programming path. |
| P2.0–P2.5 (Pins 8–13) | General-purpose I/O | Eight total P2 pins available on 20-pin package; each supports interrupt, pullup/pulldown enable (P2REN.x), and capacitive touch. |
| XIN/P2.6/TA0.1 (Pin 19) | Oscillator input | Crystal oscillator input or Timer_A channel 1 output; requires external 32.768 kHz crystal for low-power real-time clock. |
| XOUT/P2.7 (Pin 18) | Oscillator output | Crystal oscillator output; must be left unconnected if using internal DCO or external digital clock source. |
| RST/NMI/SBWTDIO (Pin 16) | Reset & debug I/O | Active-low reset input, non-maskable interrupt, and bidirectional Spy-Bi-Wire data I/O - single-wire debug interface. |
| TEST/SBWTCK (Pin 17) | Debug clock | Test mode select and Spy-Bi-Wire clock input; required for programming and in-circuit debugging. |
| DVSS (Pin 20) | Ground reference | Digital ground return; must be connected to system ground plane with low-inductance path for noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.1 µA in LPM4 (RAM retention); extends battery life in wireless sensor endpoints where wake-up is infrequent. |
| Spy-Bi-Wire debug interface | Single-pin (SBWTDIO) + clock (SBWTCK) programming and debug; reduces PCB footprint vs. full 4-pin JTAG. |
| Capacitive-touch I/O capability | Up to 16 pins support pin-oscillator-based touch sensing; enables button/slider interfaces without external ICs. |
| Programmable code protection | Security fuse prevents unauthorized readout of Flash contents; protects firmware IP in production devices. |
| Integrated clock system | Four factory-calibrated DCO frequencies (1/8/12/16 MHz) + LF oscillator + crystal support; eliminates need for external clock sources. |
Applications
| Smart Sensor Node | Portable Medical Monitor |
|---|---|
Use Scenario: Battery-powered temperature/humidity sensor transmitting data via I²C to BLE module. IC Role / Device Role / Timing Role: Main controller managing sensor reads, USI-based I²C communication, and sleep/wake scheduling. Use Value: 0.1 µA LPM4 current enables >5-year operation on CR2032; USI offloads bus timing from CPU. |
Use Scenario: Wearable pulse oximeter with capacitive-touch power-on button and LED drive control. IC Role / Device Role / Timing Role: System MCU handling touch detection, LED PWM timing via Timer_A, and low-voltage monitoring. Use Value: Integrated capacitive-touch I/O eliminates external touch controller; brownout detector prevents erratic behavior near EOL. |
| Industrial Control Panel | Energy Harvesting IoT Endpoint |
Use Scenario: DIN-rail mounted status display with pushbutton inputs and RS-485 interface (via external transceiver). IC Role / Device Role / Timing Role: Local intelligence unit polling buttons, driving display segments, and managing UART-to-USI bridging. Use Value: 2 kB Flash accommodates Modbus RTU stack; five low-power modes allow deep sleep between polling cycles. |
Use Scenario: Solar-powered environmental monitor waking every 10 minutes to sample light/temperature and transmit via LoRa. IC Role / Device Role / Timing Role: Energy-aware coordinator managing harvest management, sensor sequencing, and radio enable timing. Use Value: Sub-1 µs wake-up from LPM4 ensures minimal energy loss during transition; DCO stability supports accurate timing without crystal. |
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 |
|---|---|---|---|
| MSP430G2232IPW20R | Includes 10-bit ADC10 with 8-channel autoscan; same Flash/RAM, Timer_A, USI, and package. | Required when analog sensor interfacing (e.g., thermistor, potentiometer) is needed on-board. | Select MSP430G2232IPW20R only if ADC functionality is mandatory; otherwise MSP430G2202IPW20R offers lower cost and identical digital I/O/peripheral set. |
| MSP430FR2111IPW20R | Ferroelectric RAM (FRAM) instead of Flash; 1 kB FRAM + 0.5 kB RAM; no ADC; enhanced write endurance and lower active power (115 µA/MHz). | Better suited for frequent data logging or over-the-air firmware updates due to FRAM's instant-write capability. | Choose MSP430FR2111IPW20R for high-write-cycle applications; MSP430G2202IPW20R remains optimal for static firmware with minimal data storage needs. |
Compared with MSP430G2232IPW20R, the MSP430G2202IPW20R removes ADC10 to reduce cost and power while retaining identical I/O count, USI, Timer_A, and low-power profile; versus MSP430FR2111IPW20R, it trades FRAM flexibility for proven Flash reliability and broader toolchain support.
Availability
MSP430G2202IPW20R is available at Aetrix Electronics and suitable for smart sensor nodes, portable medical monitors, industrial control panels, and energy harvesting IoT endpoints requiring stable component supply and long-term manufacturability.
Supply support for MSP430G2202IPW20R 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 and system integration.
The MSP430G2xx family was designed specifically for ultra-low-power embedded applications where battery life, small footprint, and integrated peripherals outweigh raw performance - targeting sensor hubs, wearables, and metering systems.
FAQ
Does MSP430G2202IPW20R include an analog-to-digital converter (ADC)?
No, MSP430G2202IPW20R does not include ADC10 functionality. The device belongs to the MSP430G2x02 series, which explicitly excludes the 10-bit ADC present in the MSP430G2x32 series. Pin functions labeled A0–A7 and VREF± on the datasheet are reserved but non-operational on MSP430G2202IPW20R - confirmed by Table 1 footnotes and "ADC10 pin functions are available only on MSP430G2x32" statements throughout SLAS723H.
What debug interface does MSP430G2202IPW20R support?
MSP430G2202IPW20R supports Spy-Bi-Wire (SBW) debug interface using two pins: RST/NMI/SBWTDIO (Pin 16) and TEST/SBWTCK (Pin 17). This 2-wire interface replaces full JTAG and enables programming, breakpoint debugging, and memory inspection via TI's MSP-FET or compatible tools - no external level shifters or adapters required for standard 3.3 V operation.
Can MSP430G2202IPW20R drive capacitive-touch buttons?
Yes, MSP430G2202IPW20R supports capacitive-touch sensing on up to 16 I/O pins using its integrated pin-oscillator circuitry. Each port pin (P1.x and P2.x) can be individually enabled for touch detection via the PxIES and PxSEL registers. No external components are needed beyond standard PCB layout guidelines for touch electrodes - confirmed in the "Digital I/O" section and feature list of SLAS723H.
What are the key differences between MSP430G2202IPW20R and MSP430G2232IPW20R?
The core difference is ADC10 inclusion: MSP430G2232IPW20R integrates a 10-bit, 200-ksps ADC with internal reference and autoscan, while MSP430G2202IPW20R omits it entirely. Both share identical Flash (2 kB), RAM (256 B), Timer_A, USI, package, and low-power specs. Use MSP430G2202IPW20R when analog sensing is handled externally or unnecessary - reducing BOM cost and power consumption.
Is MSP430G2202IPW20R RoHS-compliant and halogen-free?
Yes, MSP430G2202IPW20R is RoHS-compliant and halogen-free per Texas Instruments' official product change notices and packaging documentation. The PW (TSSOP) package uses lead-free matte tin finish and meets JEDEC J-STD-020 moisture sensitivity level 3 requirements - verified in TI's "Package Option Addendum" for SLAS723H and TI.com part page specifications.
MSP430G2202IPW20R 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:
- Not Verified
- Core Processor:
- MSP430 CPU16
- Core Size:
- 16-Bit
- Speed:
- 16MHz
- Connectivity:
- I2C, SPI, USI
- Peripherals:
- Brown-out Detect/Reset, DMA, POR, 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:
MSP430G2202IPW20R FAQ
1.How can I place an order for MSP430G2202IPW20R through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430G2202IPW20R 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 MSP430G2202IPW20R reliable?
The price and inventory of MSP430G2202IPW20R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430G2202IPW20R is usually 5 days.
3.What payment methods are accepted for MSP430G2202IPW20R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430G2202IPW20R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430G2202IPW20R?
MSP430G2202IPW20R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430G2202IPW20R 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 MSP430G2202IPW20R?
For technical support, including MSP430G2202IPW20R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430G2202IPW20R requirements.
6.How does Aetrix verify that MSP430G2202IPW20R is sourced from the original manufacturer or authorized distributors?
All MSP430G2202IPW20R 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 MSP430G2202IPW20R meets industry standards.
7.What is the process for return or replacement of MSP430G2202IPW20R?
All MSP430G2202IPW20R units undergo pre-shipment inspection (PSI). If there is an issue with MSP430G2202IPW20R, 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 MSP430G2202IPW20R part is unused and in its original packaging.
Return procedure for MSP430G2202IPW20R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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