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Texas Instruments MSP430G2202IPW20
- Part No.:
- MSP430G2202IPW20
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MSP430G2202IPW20.pdf
- Description:
- IC MCU 16BIT 2KB FLASH 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:458
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Product details
Overview
MSP430G2202IPW20 from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller in 20-pin TSSOP packaging, 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 measurement systems.
For engineers reviewing the MSP430G2202IPW20 datasheet, MSP430G2202IPW20 pinout, MSP430G2202IPW20 application, or MSP430G2202IPW20 equivalent, key selection criteria include its 2 kB Flash size, absence of integrated ADC10 (distinguishing it from G2x32 variants), USI-based serial interface capability, low-power mode timing (LPM4 current ≤0.1 µA), and Spy-Bi-Wire debug compatibility.
Technical Context
The MSP430G2202IPW20 implements a 16-bit RISC 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 options - enabling sub-1-µs wake-up from LPM4.
It includes two 8-bit digital I/O ports (P1 and P2), each with individually configurable pullup/pulldown resistors, edge-selectable interrupts, and pin-oscillator enable for capacitive touch. The USI module supports synchronous SPI and I²C protocols using shared SDO/SDI/SCL/SDA pins, while Timer_A provides PWM, input capture, and interval timing via TA0.0–TA0.2 signals.
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. |
| Memory | 2 kB Flash (main 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; compatible with single-cell Li-ion, alkaline, or coin-cell batteries without external regulation. |
| Low-Power Modes | Five software-selectable modes including LPM4 (0.1 µA off-mode with RAM retention); extends multi-year operation in energy-harvesting designs. |
| Timer Resource | One 16-bit Timer_A with three capture/compare registers (TA0.0–TA0.2); supports dual-edge PWM generation and precise time-stamping of external events. |
| Serial Interface | Universal Serial Interface (USI) supporting hardware SPI and I²C; eliminates need for bit-banged GPIO protocols and reduces CPU overhead. |
| Debug Interface | Spy-Bi-Wire (2-wire JTAG) with SBWTDIO/SBWTCK pins; enables in-system programming and full-speed debugging using TI MSP-FET or LaunchPad tools. |
Pinout & Package
Package: 20-pin Thin Shrink Small Outline Package (TSSOP), 0.65 mm pitch, body size 6.5 × 4.4 mm, JEDEC MO-153 compliant. Thermal resistance θJA = 120°C/W (on 2-layer board).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DVCC (Pin 1) | Power supply | Main digital supply rail (1.8–3.6 V); requires local 100 nF decoupling to DVSS. |
| P1.0/TA0CLK/ACLK/A0 (Pin 2) | Multi-function I/O | Configurable as timer clock input, auxiliary clock output, or analog input A0 - but ADC10 not present on MSP430G2202IPW20. |
| P1.1/TA0.0/A1 (Pin 3) | Capture/compare I/O | Timer_A channel 0 input/output; supports PWM output or event capture on rising/falling edges. |
| P1.2/TA0.1/A2 (Pin 4) | Capture/compare I/O | Timer_A channel 1 input/output; usable for second PWM channel or quadrature decoding input. |
| P1.3/ADC10CLK/A3 (Pin 5) | Reserved function | ADC10CLK and A3 functions are not implemented; pin operates as general-purpose I/O only. |
| P1.4/TA0.2/SMCLK/A4/TCK (Pin 6) | Multi-function I/O | Timer_A channel 2, SMCLK output, or JTAG test clock - selected by port control registers. |
| P1.5/TA0.0/SCLK/A5/TMS (Pin 7) | Multi-function I/O | Timer_A channel 0 output, USI clock, or JTAG test mode select - function determined by module enable bits. |
| P1.6/TA0.1/SDO/SCL/A6/TDI/TCLK (Pin 8) | Multi-function I/O | USI data output (SPI) or I²C clock; also serves as JTAG test data input during programming. |
| P1.7/SDI/SDA/A7/TDO/TDI (Pin 9) | Multi-function I/O | USI data input (SPI) or I²C data line; doubles as JTAG test data output or input depending on instruction. |
| P2.0–P2.5 (Pins 10–13, 18–19) | General-purpose I/O | Eight total P2 pins available in 20-pin package; each supports interrupt-on-change and programmable pullup/down. |
| RST/NMI/SBWTDIO (Pin 16) | Reset/debug I/O | Active-low reset input, non-maskable interrupt, and bidirectional Spy-Bi-Wire data line. |
| TEST/SBWTCK (Pin 17) | Debug clock | JTAG test mode select and Spy-Bi-Wire clock input; required for flash programming and emulation. |
| XIN/P2.6/TA0.1 (Pin 19) | Oscillator input | Crystal oscillator input or general-purpose I/O; TA0.1 function available when not used for XIN. |
| XOUT/P2.7 (Pin 18) | Oscillator output | Crystal oscillator output or general-purpose I/O; must be left unconnected if external crystal not used. |
| DVSS (Pin 20) | Ground reference | Digital ground return; must be connected to system ground plane with low-inductance path. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | Active mode: 220 µA @ 1 MHz / 2.2 V; LPM4 (RAM retention): 0.1 µA - enables decade-scale battery life in wireless sensors. |
| Capacitive-touch I/O | Up to 16 pins support pin-oscillator mode; allows direct implementation of touch buttons/sliders without external ICs or RC networks. |
| Integrated clock system | Four factory-calibrated DCO frequencies (1/8/12/16 MHz) + internal LF oscillator + 32-kHz crystal support - eliminates need for external crystals in most applications. |
| Hardware USI peripheral | Dedicated SPI/I²C controller with shift register and clock logic; reduces firmware overhead and improves bus reliability vs. bit-banged GPIO. |
| On-chip debug | Spy-Bi-Wire interface with 2-pin connection (SBWTDIO/SBWTCK); enables full-speed debugging, flash erase/write, and security fuse programming. |
| Programmable code protection | Security fuse prevents unauthorized read-out of Flash contents; protects firmware IP in production devices. |
Applications
| Smart Sensor Node | Industrial Control Panel |
|---|---|
Use Scenario: Battery-powered temperature/humidity sensor transmitting data via I²C to MCU gateway every 30 seconds. IC Role / Device Role / Timing Role: Primary controller managing sensor reads, low-power sleep/wake cycles, and USI-based I²C communication. Use Value: 0.1 µA LPM4 current extends CR2032 battery life beyond 5 years; built-in DCO eliminates external crystal cost and layout area. |
Use Scenario: Front-panel interface with tactile buttons, LED indicators, and rotary encoder on HVAC controller. IC Role / Device Role / Timing Role: Dedicated capacitive-touch and LED driver MCU handling human interface tasks independently of main processor. Use Value: 16-capacitive-touch I/O pins enable direct button/slider sensing; USI SPI drives LED display without burdening host MCU. |
| Portable Medical Monitor | Energy-Harvesting IoT Endpoint |
Use Scenario: Wearable pulse oximeter sampling analog front-end at 100 Hz and storing trend data in RAM. IC Role / Device Role / Timing Role: Signal acquisition and preprocessing unit using Timer_A for precise sample timing and P1/P2 for sensor control. Use Value: 2 kB Flash accommodates signal filtering algorithms and BLE stack interface; 1.8 V minimum supply supports direct connection to thin-film batteries. |
Use Scenario: Solar-powered environmental sensor node harvesting microwatts and waking periodically to measure light/temperature. IC Role / Device Role / Timing Role: Power-aware system manager coordinating energy harvesting, storage charging, and burst-mode sensing/transmission. Use Value: Sub-1-µs wake-up from LPM4 ensures minimal energy loss during duty-cycled operation; internal DCO avoids startup delay of external oscillators. |
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 |
|---|---|---|---|
| MSP430G2232IPW20 | Includes 10-bit ADC10 with 8-channel autoscan; same Flash/RAM, USI, Timer_A, and package. | Required where analog sensor interfacing (e.g., thermistor, potentiometer) is needed without external ADC. | Select MSP430G2232IPW20 when on-chip ADC functionality is mandatory; otherwise MSP430G2202IPW20 offers lower cost and identical digital I/O/peripheral capability. |
| MSP430FR2111IPW20 | Ferroelectric RAM (FRAM) instead of Flash; 1 kB FRAM + 512 B RAM; no USI but includes enhanced eUSCI_A supporting UART/SPI/I²C. | Better write endurance and faster write speed than Flash; suited for frequent data logging or over-the-air firmware updates. | Choose MSP430FR2111IPW20 for high-write-cycle applications or where UART is preferred over USI; MSP430G2202IPW20 remains optimal for cost-sensitive, SPI/I²C-only designs with standard Flash requirements. |
Compared with MSP430G2232IPW20, the MSP430G2202IPW20 omits ADC10 to reduce silicon cost and power, making it ideal for purely digital sensor interfaces; versus MSP430FR2111IPW20, it trades FRAM advantages for proven Flash reliability and broader toolchain support in legacy designs.
Availability
MSP430G2202IPW20 is available at Aetrix Electronics and suitable for smart sensor nodes, industrial HMI panels, portable medical monitors, and energy-harvesting IoT endpoints requiring stable component supply across long-lifecycle deployments.
Supply support for MSP430G2202IPW20 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 for industrial, automotive, and consumer markets.
The MSP430G2xx family was designed specifically for ultra-low-power embedded applications demanding extended battery life, such as wireless sensor networks, portable instrumentation, and energy-conscious HMI systems.
FAQ
Does the MSP430G2202IPW20 include an integrated analog-to-digital converter (ADC)?
No, the MSP430G2202IPW20 does not include the ADC10 module. This distinguishes it from the MSP430G2x32 series (e.g., MSP430G2232IPW20), which features a 10-bit, 200-ksps ADC with internal reference and autoscan. The MSP430G2202IPW20 retains all other peripherals - Timer_A, USI, and capacitive-touch I/O - making it suitable for purely digital sensor interface or control applications where external ADCs are used.
What debug interface does the MSP430G2202IPW20 support?
The MSP430G2202IPW20 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, real-time debugging, and security fuse configuration via TI's MSP-FET or compatible LaunchPad development tools - eliminating the need for a 4-wire JTAG header in space-constrained layouts.
Can the MSP430G2202IPW20 operate from a single 1.8 V supply?
Yes, the MSP430G2202IPW20 is fully specified to operate across 1.8 V to 3.6 V, including active and all five low-power modes. At 1.8 V, it supports up to 1 MHz CPU frequency and maintains full functionality of Timer_A, USI, and I/O ports. This makes the MSP430G2202IPW20 ideal for direct connection to single-cell lithium or alkaline batteries without voltage regulation.
How many I/O pins does the MSP430G2202IPW20 provide in the TSSOP-20 package?
In the 20-pin TSSOP package, the MSP430G2202IPW20 provides 16 usable digital I/O pins: eight on Port 1 (P1.0–P1.7) and eight on Port 2 (P2.0–P2.5 plus P2.6 and P2.7). All pins support individual direction control, pullup/pulldown enable, interrupt-on-change, and capacitive-touch oscillator mode - enabling flexible HMI and sensor interface design without external GPIO expanders.
Is the MSP430G2202IPW20 pin-compatible with other devices in the MSP430G2xx family?
Yes, the MSP430G2202IPW20 shares identical pinout and package dimensions with other 20-pin TSSOP variants in the MSP430G2xx family, including MSP430G2232IPW20, MSP430G2302IPW20, and MSP430G2402IPW20. This allows drop-in replacement within the same footprint when upgrading Flash size or adding peripherals like ADC10 - provided PCB layout reserves necessary decoupling and crystal load capacitance per target device requirements.
MSP430G2202IPW20 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- Series:
- MSP430G2xx
- Packaging:
- Bulk
- 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:
MSP430G2202IPW20 FAQ
1.How can I place an order for MSP430G2202IPW20 through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430G2202IPW20 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 MSP430G2202IPW20 reliable?
The price and inventory of MSP430G2202IPW20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430G2202IPW20 is usually 5 days.
3.What payment methods are accepted for MSP430G2202IPW20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430G2202IPW20 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430G2202IPW20?
MSP430G2202IPW20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430G2202IPW20 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 MSP430G2202IPW20?
For technical support, including MSP430G2202IPW20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430G2202IPW20 requirements.
6.How does Aetrix verify that MSP430G2202IPW20 is sourced from the original manufacturer or authorized distributors?
All MSP430G2202IPW20 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 MSP430G2202IPW20 meets industry standards.
7.What is the process for return or replacement of MSP430G2202IPW20?
All MSP430G2202IPW20 units undergo pre-shipment inspection (PSI). If there is an issue with MSP430G2202IPW20, 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 MSP430G2202IPW20 part is unused and in its original packaging.
Return procedure for MSP430G2202IPW20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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