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Texas Instruments MSP430G2402IRSA16R
- Part No.:
- MSP430G2402IRSA16R
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 16-VQFN Exposed Pad
- Datasheet:
-
MSP430G2402IRSA16R.pdf
- Description:
- IC MCU 16BIT 8KB FLASH 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,107
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Product details
Overview
MSP430G2402IRSA16R from Texas Instruments is an ultra-low-power 16-bit RISC mixed-signal microcontroller in a 16-pin QFN package, featuring 8 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 16 capacitive-touch-enabled 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 MSP430G2402IRSA16R datasheet, MSP430G2402IRSA16R pinout, MSP430G2402IRSA16R application, or MSP430G2402IRSA16R equivalent, key selection criteria include low-power operating modes (LPM0–LPM4), Spy-Bi-Wire debug interface, internal DCO with calibrated frequencies up to 16 MHz, brownout detection, and programmable code protection via security fuse.
Technical Context
The MSP430G2402IRSA16R 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 an internal digitally controlled oscillator (DCO), low-frequency oscillator (VLO), and external crystal support (32 kHz), enabling flexible clock sourcing for ACLK, SMCLK, and MCLK.
It supports five software-selectable low-power modes with sub-µA standby (0.5 µA) and off-mode (0.1 µA with RAM retention). Wake-up from standby occurs in less than 1 µs via interrupt, leveraging the DCO's fast stabilization. The USI module provides hardware-level SPI and I²C protocol handling without CPU intervention during transfers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 16 general-purpose registers and constant generators for optimized code efficiency |
| Flash / RAM | 8 KB Flash memory (512-byte segments) and 256 B RAM - sufficient for firmware + data buffering in compact embedded control |
| Supply Voltage | 1.8 V to 3.6 V - compatible with single-cell Li-ion, two-cell alkaline, or regulated 3.3 V rails |
| Active Current | 220 µA at 1 MHz, 2.2 V - enables multi-year operation on coin-cell batteries in duty-cycled sensing |
| Low-Power Modes | LPM0–LPM4 with 0.5 µA standby and 0.1 µA off-mode (RAM retention) - extends battery life in intermittent wake-up applications |
| Timer Resource | One 16-bit Timer_A with three capture/compare registers - supports PWM generation, input capture, interval timing, and quadrature decoding |
| Communication | Universal Serial Interface (USI) supporting SPI and I²C - reduces firmware overhead for sensor interfacing and peripheral control |
Pinout & Package
Package: 16-pin QFN (RSA), 3 mm × 3 mm, 0.4 mm pitch, thermal pad connected to DVSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DVCC (Pin 1) | Power supply | Main digital supply voltage (1.8–3.6 V); requires local decoupling capacitor |
| P1.0/TA0CLK/ACLK/A0 (Pin 2) | Multi-function I/O | Capacitive-touch I/O, Timer_A clock input, ACLK output, or ADC10 channel 0 - not available on G2x02 series |
| P1.3/ADC10CLK/A3/VREF-/VEREF- (Pin 5) | Multi-function I/O | ADC10 clock output, analog input A3, or negative reference - functionally absent on MSP430G2402 per datasheet note |
| P1.4/TA0.2/SMCLK/A4/VREF+/VEREF+/TCK (Pin 6) | Multi-function I/O | Timer_A compare output, SMCLK output, JTAG test clock - ADC10 positive reference not active on G2x02 |
| P1.5/TA0.0/SCLK/A5/TMS (Pin 7) | Multi-function I/O | Timer_A compare output, USI clock, JTAG mode select - no ADC10 channel A5 on G2x02 |
| P1.6/TA0.1/SDO/SCL/A6/TDI/TCLK (Pin 8) | Multi-function I/O | USI data out (SPI), I²C clock, JTAG test data in - no ADC10 channel A6 on G2x02 |
| P1.7/SDI/SDA/A7/TDO/TDI (Pin 9) | Multi-function I/O | USI data in (SPI), I²C data, JTAG test data out/in - no ADC10 channel A7 on G2x02 |
| P2.0–P2.5 (Pins 10–13, 15–16) | General I/O | Eight total P2 pins; only P2.6 and P2.7 are available in 16-pin RSA package - pulldown resistors enabled via P2REN.x |
| RST/NMI/SBWTDIO (Pin 10) | Debug/reset | Spy-Bi-Wire bidirectional data line; also serves as non-maskable interrupt and reset input |
| TEST/SBWTCK (Pin 11) | Debug | Spy-Bi-Wire clock input; connects to device protection fuse - must be held low during normal operation |
| XIN/P2.6/TA0.1 (Pin 12) | Oscillator I/O | Crystal oscillator input or general I/O; TA0.1 compare output function available |
| XOUT/P2.7 (Pin 13) | Oscillator output | Crystal oscillator output or general I/O; unused if internal DCO selected |
| DVSS (Pin 14) | Ground | Digital ground reference; thermal pad must be soldered to PCB ground plane |
| AVCC / AVSS (Pins 15–16) | Analog supply | Not connected on MSP430G2402 - ADC10 module is absent; pins are NC per family differentiation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.1 µA off-mode with RAM retention enables years of shelf life in sealed sensor modules |
| Integrated Spy-Bi-Wire interface | Single-wire debug and programming eliminates need for full JTAG header, reducing PCB footprint and BOM cost |
| Calibrated internal DCO | Four factory-trimmed frequencies (up to 16 MHz) allow precise timing without external crystal in cost-sensitive designs |
| Capacitive-touch I/O capability | Up to 16 pins support pin-oscillator-based touch sensing - no external RC network required |
| Programmable code protection | Security fuse prevents unauthorized read-out of Flash contents - critical for IP-protected firmware |
| Five configurable low-power modes | Software-selectable LPM0–LPM4 provide granular trade-off between wake-up latency and current draw |
Applications
| Smart Meter Sensor Node | Wireless Remote Control |
|---|---|
Use Scenario: Battery-powered utility meter monitoring temperature, pressure, and flow using discrete analog sensors. IC Role / Device Role / Timing Role: Central controller managing sensor sampling, data preprocessing, and RF transmission scheduling. Use Value: 0.5 µA standby current and <1 µs wake-up enable 10+ year battery life with hourly reporting cycles. | Use Scenario: IR or sub-GHz remote with tactile buttons, LED feedback, and low-duty-cycle transmission. IC Role / Device Role / Timing Role: Input scanner for capacitive or mechanical buttons, LED driver, and packetized transmitter controller. Use Value: Built-in capacitive-touch I/O and USI simplify hardware design - no external touch controller or level-shifter needed. |
| Portable Medical Monitor | Industrial Status Panel |
Use Scenario: Handheld pulse oximeter or glucose meter requiring analog front-end signal conditioning and display interface. IC Role / Device Role / Timing Role: Signal acquisition controller with timer-triggered ADC sampling (on G2x32 variants) and SPI-driven OLED update. Use Value: 16-bit Timer_A and USI reduce firmware complexity for synchronized sampling and display refresh. | Use Scenario: DIN-rail mounted panel displaying machine status, alarms, and maintenance timers in factory environments. IC Role / Device Role / Timing Role: Standalone status manager polling inputs, driving LEDs/relays, and logging events to Flash. Use Value: Brownout detection and Flash write endurance (>10k cycles) ensure reliable operation during unstable AC line conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430G2553IRHA40R | 40-pin QFN; includes 10-bit ADC10 (8-channel), 16 KB Flash, 512 B RAM, and enhanced USCI (UART/SPI/I²C) | Required when analog sensing or UART communication is needed - not drop-in compatible due to pin count and peripheral set | Select for designs needing integrated ADC or serial host interface; requires PCB redesign |
| MSP430FR2152IPW16R | Ferroelectric RAM (FRAM) instead of Flash; 3.75 KB FRAM, 1 KB RAM, no ADC; lower active current (120 µA/MHz) | Better suited for high-write-cycle logging or frequent firmware updates; lacks ADC and touch I/O | Choose for ultra-reliable nonvolatile storage and faster write performance; verify touch functionality via GPIO toggling |
Compared with MSP430G2402IRSA16R, the MSP430G2553IRHA40R adds ADC and UART but demands larger layout and higher BOM cost, while the MSP430FR2152IPW16R trades Flash endurance for FRAM speed and lower power - neither is pin-compatible, but both address adjacent low-power MCU requirements.
Availability
MSP430G2402IRSA16R is available at Aetrix Electronics and suitable for smart meter sensor nodes, wireless remote controls, and portable medical monitors requiring stable component supply, long-term lifecycle support, and TI-qualified automotive-grade traceability.
Supply support for MSP430G2402IRSA16R 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 is designed for ultra-low-power embedded control in battery-operated and energy-harvesting applications, prioritizing nanowatt sleep modes, fast wake-up, and minimal external components.
FAQ
Does MSP430G2402IRSA16R include an integrated ADC?
No, the MSP430G2402IRSA16R does not include an ADC module. It belongs to the MSP430G2x02 series, which omits the ADC10 peripheral present in the G2x32 series. Pin functions labeled A0–A7 in the datasheet are reserved but inactive on MSP430G2402IRSA16R. External analog sensing requires discrete ADC or alternative MCU selection.
What debug interface does MSP430G2402IRSA16R support?
MSP430G2402IRSA16R supports the Spy-Bi-Wire (SBW) interface using RST/NMI/SBWTDIO (Pin 10) and TEST/SBWTCK (Pin 11). This two-wire interface enables full in-circuit debugging and programming without JTAG header footprint. No external voltage is required - SBW operates from the target VCC rail.
Can MSP430G2402IRSA16R drive capacitive-touch buttons?
Yes, MSP430G2402IRSA16R supports capacitive-touch sensing on up to 16 I/O pins using its integrated pin-oscillator circuitry. Each port pin can be individually configured for touch operation via P1SEL/P2SEL and dedicated control bits - no external RC components or dedicated touch controller IC is required.
What is the maximum operating frequency of MSP430G2402IRSA16R?
The MSP430G2402IRSA16R supports internal DCO frequencies up to 16 MHz, calibrated at four points (1, 8, 12, and 16 MHz) and stored in information memory segment A. System clock (MCLK) may run at any DCO frequency within specification; actual achievable frequency depends on supply voltage and temperature per the device's DC characteristics table.
Is MSP430G2402IRSA16R qualified for automotive applications?
MSP430G2402IRSA16R is not AEC-Q100 qualified. It is rated for industrial temperature range (–40°C to 85°C) and intended for consumer, medical, and industrial applications. For automotive use, TI recommends the MSP430FR59xx or MSP430F5xx families with formal AEC-Q100 certification and extended temperature support.
MSP430G2402IRSA16R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 16-VQFN Exposed Pad
- 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:
- 10
- Program Memory Size:
- 8KB (8K 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:
MSP430G2402IRSA16R FAQ
1.How can I place an order for MSP430G2402IRSA16R through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430G2402IRSA16R 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 MSP430G2402IRSA16R reliable?
The price and inventory of MSP430G2402IRSA16R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430G2402IRSA16R is usually 5 days.
3.What payment methods are accepted for MSP430G2402IRSA16R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430G2402IRSA16R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430G2402IRSA16R?
MSP430G2402IRSA16R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430G2402IRSA16R 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 MSP430G2402IRSA16R?
For technical support, including MSP430G2402IRSA16R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430G2402IRSA16R requirements.
6.How does Aetrix verify that MSP430G2402IRSA16R is sourced from the original manufacturer or authorized distributors?
All MSP430G2402IRSA16R 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 MSP430G2402IRSA16R meets industry standards.
7.What is the process for return or replacement of MSP430G2402IRSA16R?
All MSP430G2402IRSA16R units undergo pre-shipment inspection (PSI). If there is an issue with MSP430G2402IRSA16R, 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 MSP430G2402IRSA16R part is unused and in its original packaging.
Return procedure for MSP430G2402IRSA16R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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