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Texas Instruments MSP430G2302IPW14
- Part No.:
- MSP430G2302IPW14
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MSP430G2302IPW14.pdf
- Description:
- IC MCU 16BIT 4KB FLASH 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,380
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Product details
Overview
MSP430G2302IPW14 from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller in 14-pin TSSOP packaging, featuring 4 KB Flash, 256 B RAM, one 16-bit Timer_A with three capture/compare registers, Universal Serial Interface (USI) for SPI/I²C, and up to 8 capacitive-touch-enabled 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 MSP430G2302IPW14 datasheet, MSP430G2302IPW14 pinout, MSP430G2302IPW14 application, or MSP430G2302IPW14 equivalent, key selection criteria include its 4 KB Flash size, USI-based serial interface support, 16-bit Timer_A configuration, low-power mode timing (LPM4 < 0.1 µA), and TSSOP-14 package compatibility with space-constrained PCB layouts.
Technical Context
The MSP430G2302IPW14 implements a 16-bit CPU with seven addressing modes and 51-instruction set, executing register-to-register operations in one CPU clock cycle. Its basic clock module integrates DCO (calibrated at 1/8/12/16 MHz), LF oscillator, and 32-kHz crystal support - enabling sub-1 µs wake-up from LPM4 via ACLK or SMCLK-triggered interrupts.
It uses Spy-Bi-Wire for on-chip emulation and programming without external voltage, and supports brownout detection with reset/NMI pin functionality. Port P1 provides eight I/O pins with individually configurable pullup/pulldown resistors and pin-oscillator enable for capacitive touch; Port P2 offers two dedicated I/O pins in the 14-pin TSSOP variant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 16 general-purpose registers and constant generator; enables efficient C code execution and deterministic interrupt latency. |
| Flash / RAM | 4 KB Flash memory (512-byte segments) and 256 B RAM; supports in-system programming and data retention during LPM3/LPM4. |
| Operating Voltage | 1.8 V to 3.6 V supply range; allows direct operation from single-cell Li-ion or two-cell alkaline batteries without regulation. |
| Low-Power Modes | Five software-selectable modes including LPM4 (0.1 µA off-mode with RAM retention); critical for multi-year battery life in wireless sensors. |
| Timer Resource | One 16-bit Timer_A (Timer0_A3) with three capture/compare registers; supports PWM generation, input capture, and interval timing with independent interrupt vectors. |
| Serial Interface | Universal Serial Interface (USI) supporting hardware SPI and I²C protocols; eliminates need for bit-banged GPIO communication in resource-limited designs. |
| I/O Capability | 8 programmable I/O pins on Port P1 + 2 on Port P2 (TSSOP-14); all support edge-selectable interrupts and capacitive-touch sensing via PinOsc enable. |
Pinout & Package
Package: 14-pin TSSOP (PW14), 5.0 mm × 4.4 mm body, 0.65 mm pitch, exposed pad not present. Thermal resistance θJA = 120°C/W (JEDEC standard board).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (DVCC) | Power supply | Positive supply for digital core (1.8–3.6 V); must be decoupled locally with 100 nF ceramic capacitor. |
| 2 (P1.0/TA0CLK/ACLK/A0) | Multi-function I/O | Primary timer clock input (TA0CLK), auxiliary clock output (ACLK), or analog input A0 - function selected via port control registers. |
| 3 (P1.1/TA0.0/A1) | Multi-function I/O | Capture/compare channel 0 (TA0.0) or analog input A1; supports interrupt-on-change and capacitive-touch sensing. |
| 4 (P1.2/TA0.1/A2) | Multi-function I/O | Capture/compare channel 1 (TA0.1) or analog input A2; shares same timer module as P1.1 and P1.4. |
| 5 (P1.3/ADC10CLK/VREF-/VEREF-/A3) | Multi-function I/O | ADC10 conversion clock output or negative reference input (VREF-/VEREF-) or analog input A3 - only functional on MSP430G2x32 series. |
| 6 (P1.4/TA0.2/SMCLK/A4/TCK) | Multi-function I/O | Capture/compare channel 2 (TA0.2), sub-main clock output (SMCLK), or JTAG test clock (TCK) - mode selected by P1SEL/P1DIR settings. |
| 7 (P1.5/TA0.0/SCLK/A5/TMS) | Multi-function I/O | Timer compare output (TA0.0), USI clock (SCLK), or JTAG test mode select (TMS); requires careful pinmux configuration to avoid conflict. |
| 8 (P1.6/TA0.1/SDO/SCL/A6/TDI/TCLK) | Multi-function I/O | Timer compare output (TA0.1), USI data out (SDO), I²C clock (SCL), or JTAG test data input (TDI); shared functions demand runtime reconfiguration. |
| 9 (P1.7/SDI/SDA/A7/TDO/TDI) | Multi-function I/O | USI data in (SDI), I²C data (SDA), or JTAG test data I/O (TDO/TDI); dual-role pin requires explicit direction control before use. |
| 10 (RST/NMI/SBWTDIO) | System control | Reset input, non-maskable interrupt, or Spy-Bi-Wire data I/O; internal pullup enabled by default; critical for debug and safe startup. |
| 11 (TEST/SBWTCK) | Debug interface | JTAG test select or Spy-Bi-Wire clock; tied high during normal operation; used only during programming/emulation. |
| 12 (XOUT/P2.7) | Oscillator output | Crystal oscillator output or general-purpose I/O (P2.7); if used as input, P2SEL.7 must be cleared to prevent excess current draw. |
| 13 (XIN/P2.6/TA0.1) | Oscillator input | Crystal oscillator input or timer compare output (TA0.1); supports 32.768 kHz watch crystal or external clock source up to 16 MHz. |
| 14 (DVSS) | Ground reference | Digital ground return path; must be connected to system ground plane with low-inductance trace for noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low standby current | 0.5 µA in LPM3 (RAM retained, ACLK active) - enables multi-year operation on coin-cell batteries in periodic-sense applications. |
| Digitally controlled oscillator (DCO) | Four factory-calibrated frequencies (1/8/12/16 MHz); achieves stable clocking within 3% accuracy across voltage/temperature without external crystal. |
| Capacitive-touch I/O capability | All 8 P1.x pins support pin-oscillator mode; enables zero-additional-component touch buttons/sliders for human-interface designs. |
| On-chip emulation logic | Spy-Bi-Wire interface uses only RST and TEST pins; eliminates need for full 4-pin JTAG header and reduces debug footprint. |
| Programmable code protection | Security fuse prevents unauthorized flash readout; once blown, flash contents cannot be extracted via Spy-Bi-Wire or JTAG. |
| Brownout detector | Configurable threshold (1.6–2.7 V); asserts reset when supply drops below safe operating level - prevents erratic behavior during battery depletion. |
Applications
| Smart Sensor Node | Portable Medical Device |
|---|---|
Use Scenario: Battery-powered temperature/humidity sensor transmitting data via UART or RF link every 30 seconds. IC Role / Device Role / Timing Role: Main controller managing ADC sampling, sleep/wake scheduling, and serial protocol framing using USI or Timer_A-generated baud rates. Use Value: 0.1 µA LPM4 current extends CR2032 battery life beyond 5 years; USI handles I²C sensor reads without CPU load, preserving power budget. | Use Scenario: Handheld pulse oximeter requiring analog front-end signal conditioning and LED drive timing. IC Role / Device Role / Timing Role: System orchestrator acquiring ADC samples from photodiode amplifier, modulating red/IR LEDs via Timer_A PWM outputs, and calculating SpO₂ in real time. Use Value: Integrated 16-bit Timer_A with three compare registers enables precise, phase-aligned LED pulsing and synchronous ADC sampling - eliminating external timing ICs. |
| Industrial Control Panel | Energy Harvesting Endpoint |
Use Scenario: Wall-mounted HVAC control panel with capacitive-touch buttons and local display driver interface. IC Role / Device Role / Timing Role: HMI processor scanning touch inputs, debouncing keys, updating segment LCD via USI SPI, and communicating with main controller over UART. Use Value: All 8 P1.x pins support capacitive touch with no external components; built-in PinOsc eliminates RC network cost and layout sensitivity. | Use Scenario: Solar-powered environmental monitor harvesting µW-level energy and waking only on event or schedule. IC Role / Device Role / Timing Role: Energy-aware supervisor monitoring harvest voltage, charging supercapacitor, and triggering measurement bursts using LPM3 wakeup timers. Use Value: Sub-µA LPM3 current ensures reliable operation even under intermittent light; DCO calibration data stored in Info Memory enables accurate timing without crystal. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430G2232IPW14 | 2 KB Flash, 256 B RAM, no ADC10 module; identical pinout and peripheral set otherwise. | Lacks 10-bit ADC - unsuitable for analog-sensing applications but sufficient for digital-control-only tasks. | Select when analog acquisition is unnecessary and cost reduction is prioritized over future feature scalability. |
| MSP430G2332IPW14 | 4 KB Flash, 256 B RAM, includes 10-bit 8-channel ADC10 with autoscan and internal reference - same package and core peripherals. | Enables direct analog sensor interfacing without external ADC; adds 200-ksps sampling and DMA-assisted data transfer. | Choose when system requires on-chip analog conversion; note ADC10 functionality is exclusive to G2x32 family members. |
Compared with MSP430G2232IPW14, the MSP430G2302IPW14 adds no ADC but retains full USI and Timer_A capability at lower cost; versus MSP430G2332IPW14, it omits ADC10 while maintaining identical power profile and code compatibility - making it ideal for digital-centric firmware where analog extension may be added later.
Availability
MSP430G2302IPW14 is available at Aetrix Electronics and suitable for smart sensor nodes, portable medical devices, and industrial control panels requiring stable component supply, long-term manufacturability, and TI's extended product lifecycle support.
Supply support for MSP430G2302IPW14 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 for ultra-low-power embedded applications where battery life, small footprint, and integrated mixed-signal capability are critical - targeting sensor systems, wearables, and energy-harvesting endpoints.
FAQ
What is the maximum operating frequency of the MSP430G2302IPW14?
The MSP430G2302IPW14 supports a maximum system clock frequency of 16 MHz via its digitally controlled oscillator (DCO), which is factory-calibrated at four frequencies (1/8/12/16 MHz). This allows the MSP430G2302IPW14 to execute instructions at 16 million per second while maintaining ultra-low power consumption in active mode (220 µA at 1 MHz, 2.2 V).
Does the MSP430G2302IPW14 include an analog-to-digital converter (ADC)?
No, the MSP430G2302IPW14 does not include an ADC. It belongs to the MSP430G2x02 series, which lacks the ADC10 module. Only MSP430G2x32 variants (e.g., MSP430G2332IPW14) integrate the 10-bit, 200-ksps ADC10 with internal reference and autoscan. The MSP430G2302IPW14 retains all other peripherals including USI, Timer_A, and capacitive-touch I/O.
What debug interface does the MSP430G2302IPW14 support?
The MSP430G2302IPW14 supports Spy-Bi-Wire (SBW) debugging using only two pins: RST/NMI/SBWTDIO and TEST/SBWTCK. This 2-wire interface replaces full 4-pin JTAG, reducing PCB footprint and simplifying debug connector design. The MSP430G2302IPW14 does not require external programming voltage - all programming and emulation are performed at core supply voltage (1.8–3.6 V).
How many I/O pins are available on the MSP430G2302IPW14 in TSSOP-14 package?
The MSP430G2302IPW14 provides 8 programmable I/O pins on Port P1 (P1.0–P1.7) and 2 additional I/O pins on Port P2 (P2.6 and P2.7), totaling 10 usable digital I/O lines in the 14-pin TSSOP package. All P1 pins support capacitive-touch sensing via PinOsc enable; P2 pins are general-purpose with interrupt capability but lack touch support in this package variant.
Is the MSP430G2302IPW14 pin-compatible with other MSP430G2xx devices in TSSOP-14?
Yes, the MSP430G2302IPW14 shares identical pinout and electrical characteristics with other MSP430G2xx devices in the 14-pin TSSOP (PW14) package, including MSP430G2202IPW14, MSP430G2402IPW14, MSP430G2232IPW14, and MSP430G2432IPW14. This enables hardware reuse across firmware variants - for example, upgrading from MSP430G2202IPW14 to MSP430G2302IPW14 requires no PCB change.
MSP430G2302IPW14 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 14-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:
- 10
- Program Memory Size:
- 4KB (4K 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:
MSP430G2302IPW14 FAQ
1.How can I place an order for MSP430G2302IPW14 through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430G2302IPW14 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 MSP430G2302IPW14 reliable?
The price and inventory of MSP430G2302IPW14 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430G2302IPW14 is usually 5 days.
3.What payment methods are accepted for MSP430G2302IPW14?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430G2302IPW14 transactions.
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4.How is shipping managed for MSP430G2302IPW14?
MSP430G2302IPW14 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430G2302IPW14 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 MSP430G2302IPW14?
For technical support, including MSP430G2302IPW14 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430G2302IPW14 requirements.
6.How does Aetrix verify that MSP430G2302IPW14 is sourced from the original manufacturer or authorized distributors?
All MSP430G2302IPW14 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 MSP430G2302IPW14 meets industry standards.
7.What is the process for return or replacement of MSP430G2302IPW14?
All MSP430G2302IPW14 units undergo pre-shipment inspection (PSI). If there is an issue with MSP430G2302IPW14, 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 MSP430G2302IPW14 part is unused and in its original packaging.
Return procedure for MSP430G2302IPW14:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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