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Texas Instruments MSP430G2152IRSA16R
- Part No.:
- MSP430G2152IRSA16R
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 16-VQFN Exposed Pad
- Datasheet:
-
MSP430G2152IRSA16R.pdf
- Description:
- IC MCU 16BIT 1KB FLASH 16QFN
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MSP430G2152IRSA16R from Texas Instruments is an ultra-low-power 16-bit RISC mixed-signal microcontroller featuring a 10-bit 200-ksps ADC, Universal Serial Interface (USI) supporting SPI and I²C, one 16-bit Timer_A with three capture/compare registers, 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 measurement systems.
For engineers reviewing the MSP430G2152IRSA16R datasheet, MSP430G2152IRSA16R pinout, MSP430G2152IRSA16R application, or MSP430G2152IRSA16R equivalent, key selection criteria include its 16-QFN package, 1 kB Flash / 128 B RAM memory configuration, ADC10 integration, low-power mode support (down to 0.1 µA in LPM4), and Spy-Bi-Wire debug interface compatibility.
Technical Context
The MSP430G2152IRSA16R implements a 16-bit CPU with constant generators and seven addressing modes, enabling efficient register-based execution at up to 16 MHz via its digitally controlled oscillator (DCO). Its clock system integrates ACLK (LF oscillator or 32-kHz crystal), SMCLK, and MCLK with four factory-calibrated DCO frequencies.
It features a single-channel analog comparator (Comp_A+), brownout detection, five software-selectable low-power modes (LPM0–LPM4), and on-chip emulation logic using Spy-Bi-Wire-no external programming voltage required. The USI module supports synchronous serial communication without dedicated hardware UART or I²C peripherals.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 16 general-purpose registers and 62.5-ns instruction cycle time at 16 MHz |
| Flash / RAM | 1 kB Flash program memory and 128 B RAM - sufficient for compact sensor firmware with minimal data buffering |
| ADC Resolution | 10-bit SAR ADC with 200-ksps sampling rate and internal reference - enables direct analog sensor digitization without external reference ICs |
| Power Consumption | Active mode: 220 µA at 1 MHz/2.2 V; Standby: 0.5 µA; Off mode (RAM retention): 0.1 µA - extends coin-cell battery life to multi-year operation |
| Timer Resource | One 16-bit Timer_A with three capture/compare registers - supports PWM generation, input capture, and interval timing for motor control or timing-critical I/O |
| Communication | Universal Serial Interface (USI) supporting SPI and I²C protocols - provides flexible peripheral interfacing with minimal pin count and no dedicated UART hardware |
| Package | 16-pin QFN (RSA), 3 mm × 3 mm, 0.4 mm pitch - suitable for space-constrained PCB layouts in wearable and IoT edge devices |
Pinout & Package
Package: 16-pin QFN (RSA), 3 mm × 3 mm body, exposed thermal pad recommended to be connected to DVSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DVCC (Pin 1) | Digital supply voltage | 1.8–3.6 V digital core power rail; requires local 100-nF decoupling |
| P1.0/TA0CLK/ACLK/A0/CA0 (Pin 2) | Multi-function I/O | Configurable as timer clock input, ACLK output, ADC channel 0, or comparator input - enables flexible clock routing and analog sensing |
| P1.3/ADC10CLK/CAOUT/VREF-/VEREF-/A3/CA3 (Pin 5) | Analog & comparator terminal | Provides ADC conversion clock output, comparator output, negative reference input, and ADC channel 3 - critical for precision analog subsystem design |
| P1.4/TA0.2/SMCLK/A4/VREF+/VEREF+/CA4/TCK (Pin 6) | Multi-function I/O | Supports SMCLK output, ADC channel 4, positive reference input, and JTAG test clock - consolidates timing, analog, and debug functions |
| RST/NMI/SBWTDIO (Pin 10) | Reset & debug I/O | Active-low reset input, non-maskable interrupt, and Spy-Bi-Wire bidirectional data line - enables in-system programming and debugging over two-wire interface |
| TEST/SBWTCK (Pin 11) | Debug clock input | Test mode select and Spy-Bi-Wire clock input - required for programming and boundary-scan testing |
| XIN/P2.6/TA0.1 (Pin 12) | Oscillator & timer input | Crystal oscillator input or timer compare output - supports precise timing via external 32.768-kHz crystal or internal DCO |
| XOUT/P2.7 (Pin 13) | Oscillator output | Crystal oscillator output - must be left unconnected if using internal LF oscillator or external digital clock source |
| AVCC (Pin 15) | Analog supply voltage | Separate 1.8–3.6 V analog power rail; must be filtered independently from DVCC to maintain ADC accuracy |
| DVSS (Pin 14) | Digital ground | Primary digital reference plane; tied to QFN thermal pad for thermal and EMI performance |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.1 µA off-mode current with RAM retention enables decade-scale battery life in energy-harvesting or coin-cell applications |
| Integrated 10-bit ADC | 200-ksps sampling with internal reference and autoscan eliminates need for external ADC and reference components |
| Capacitive-touch I/O | Up to 8 pins support pin-oscillator enable for low-cost touch-button interfaces without external RC networks |
| Factory-calibrated DCO | Four internal DCO frequencies (1/8/12/16 MHz) calibrated at production - removes need for external crystal in cost-sensitive designs |
| Spy-Bi-Wire debug | Two-wire JTAG-compatible interface enables full flash programming and real-time debugging using TI MSP-FET or LaunchPad tools |
Applications
| Environmental Sensor Node | Smart Meter Interface |
|---|---|
Use Scenario: Battery-powered temperature/humidity sensor collecting data every 5 minutes and transmitting via BLE or sub-GHz radio. IC Role / Device Role / Timing Role: Main controller executing sensor readout, ADC conversion, data preprocessing, and low-power sleep scheduling. Use Value: 0.1 µA LPM4 current and integrated ADC reduce BOM count and extend CR2032 battery life beyond 5 years. | Use Scenario: Pulse-counting interface between mechanical utility meter and wireless communication module. IC Role / Device Role / Timing Role: Edge-detecting I/O controller capturing meter pulses and timestamping events using Timer_A capture mode. Use Value: Hardware capture/compare registers eliminate CPU polling overhead and ensure sub-microsecond timing accuracy. |
| Portable Medical Monitor | Industrial Control Panel |
Use Scenario: Handheld pulse oximeter with analog front-end amplifying photodiode signals and driving OLED display. IC Role / Device Role / Timing Role: Signal acquisition MCU performing synchronized dual-channel ADC sampling and basic saturation calculation. Use Value: 10-bit ADC with internal reference and 200-ksps rate supports real-time SpO₂ computation without external precision references. | Use Scenario: Local HMI panel with tactile buttons, LED indicators, and RS-485 communication to PLC. IC Role / Device Role / Timing Role: Peripheral interface controller managing button debouncing, LED PWM dimming, and USI-driven half-duplex RS-485 framing. Use Value: USI module configured in SPI mode drives isolated RS-485 transceiver with deterministic timing and minimal firmware overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430G2252IRSA16 | 256 B RAM, 2 kB Flash, same ADC10 and USI - higher memory headroom for larger firmware or buffer requirements | Better suited for applications requiring extended data logging or more complex protocol stacks | Select when >128 B RAM is needed but identical peripheral set and package are required |
| MSP430G2132IRSA16 | No ADC10; includes comparator only - lacks integrated 10-bit SAR converter and autoscan capability | Applicable where analog sensing is handled externally or only basic threshold detection is needed | Choose only if ADC functionality is unnecessary and lowest BOM cost is primary objective |
Compared with MSP430G2252IRSA16, the MSP430G2152IRSA16 trades memory capacity for lower cost and smaller code footprint; compared with MSP430G2132IRSA16, it adds essential ADC10 functionality for direct analog signal digitization - making it the optimal balance of integration, power, and cost for entry-level sensor nodes.
Availability
MSP430G2152IRSA16R is available at Aetrix Electronics and suitable for environmental monitoring, portable medical devices, and industrial HMI applications requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for MSP430G2152IRSA16R 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, reliability, and system-level integration.
The MSP430G2xx family was designed specifically for ultra-low-power sensing and measurement applications, prioritizing nanowatt operation, integrated analog peripherals, and rapid wake-up response to extend battery life in portable and remote systems.
FAQ
What is the maximum operating frequency of the MSP430G2152IRSA16R?
The MSP430G2152IRSA16R supports a maximum CPU 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 high-speed signal processing while maintaining ultra-low-power operation - the MSP430G2152IRSA16R achieves 220 µA active current at 1 MHz and 2.2 V, scaling predictably with clock speed and supply voltage.
Does the MSP430G2152IRSA16R support hardware UART communication?
No, the MSP430G2152IRSA16R does not include a dedicated UART peripheral. It features a Universal Serial Interface (USI) module that supports SPI and I²C protocols in hardware, but UART must be implemented in firmware using timer-generated bit-banging or USI in custom bit-clock mode. The MSP430G2152IRSA16R datasheet confirms USI functionality only - no UART register map or interrupt vector is defined for asynchronous serial communication.
How many ADC channels does the MSP430G2152IRSA16R support?
The MSP430G2152IRSA16R supports eight analog input channels (A0–A7) for its 10-bit ADC10 module, as confirmed in Table 2 (Terminal Functions) and functional block diagrams. All eight channels are accessible on the 16-pin QFN package via P1.0, P1.1, P1.2, P1.3, P1.4, P1.5, P1.6, and P1.7 - enabling simultaneous analog sensing across multiple sensors without external multiplexing.
Is the MSP430G2152IRSA16R pin-compatible with other MSP430G2x52 variants in the RSA package?
Yes, all MSP430G2x52 devices in the 16-pin QFN (RSA) package - including MSP430G2152IRSA16, MSP430G2252IRSA16, MSP430G2352IRSA16, and MSP430G2452IRSA16 - share identical pinouts and electrical characteristics per SLAS722G. This allows direct hardware replacement within the same family for memory or peripheral scaling, provided firmware accommodates differences in Flash/RAM size and ADC channel count.
What debug interface does the MSP430G2152IRSA16R use?
The MSP430G2152IRSA16R uses the Spy-Bi-Wire (SBW) interface - a two-wire variant of JTAG - for programming and debugging. It requires only RST/NMI/SBWTDIO (Pin 10) and TEST/SBWTCK (Pin 11), plus DVCC and DVSS. This interface is fully supported by TI's MSP-FET debugger and LaunchPad development kits, enabling full flash erase/write, breakpoint setting, and real-time register inspection without additional hardware.
MSP430G2152IRSA16R 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:
- 1KB (1K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 128 x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 8x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430G2152IRSA16R FAQ
1.How can I place an order for MSP430G2152IRSA16R through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430G2152IRSA16R 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 MSP430G2152IRSA16R reliable?
The price and inventory of MSP430G2152IRSA16R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430G2152IRSA16R is usually 5 days.
3.What payment methods are accepted for MSP430G2152IRSA16R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430G2152IRSA16R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430G2152IRSA16R?
MSP430G2152IRSA16R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430G2152IRSA16R 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 MSP430G2152IRSA16R?
For technical support, including MSP430G2152IRSA16R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430G2152IRSA16R requirements.
6.How does Aetrix verify that MSP430G2152IRSA16R is sourced from the original manufacturer or authorized distributors?
All MSP430G2152IRSA16R 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 MSP430G2152IRSA16R meets industry standards.
7.What is the process for return or replacement of MSP430G2152IRSA16R?
All MSP430G2152IRSA16R units undergo pre-shipment inspection (PSI). If there is an issue with MSP430G2152IRSA16R, 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 MSP430G2152IRSA16R part is unused and in its original packaging.
Return procedure for MSP430G2152IRSA16R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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