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Texas Instruments MSP430G2152IRSA16T
- Part No.:
- MSP430G2152IRSA16T
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 16-VQFN Exposed Pad
- Datasheet:
-
MSP430G2152IRSA16T.pdf
- Description:
- IC MCU 16BIT 1KB FLASH 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:990
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Product details
Overview
MSP430G2152IRSA16T from Texas Instruments is an ultra-low-power 16-bit RISC mixed-signal microcontroller featuring 1 kB flash, 128 B RAM, a 10-bit 200-ksps ADC with internal reference and autoscan, one 16-bit Timer_A with three capture/compare registers, USI supporting SPI and I²C, and an on-chip analog comparator. It operates from 1.8 V to 3.6 V and targets battery-powered sensor nodes and portable measurement systems.
For engineers reviewing the MSP430G2152IRSA16T datasheet, MSP430G2152IRSA16T pinout, MSP430G2152IRSA16T application, or MSP430G2152IRSA16T equivalent, key selection criteria include its QFN-16 package, 10-bit ADC capability (exclusive to G2x52 series), Spy-Bi-Wire debug interface, five power-saving modes, and capacitive-touch–enabled I/O support.
Technical Context
The MSP430G2152IRSA16T implements a 16-bit CPU with seven addressing modes and 51 instructions, integrated with a digitally controlled oscillator (DCO) enabling sub-1-µs wake-up from LPM4. Its clock system provides ACLK, SMCLK, and MCLK sourced from internal LF oscillator, DCO, or external crystal.
Peripheral integration includes USI for synchronous serial communication (SPI/I²C), Comparator_A+ with eight input channels, and Timer_A3 supporting PWM, capture, and interval timing. ADC10 functionality - including VREF+/VREF− inputs, sample-and-hold, and autoscan - is confirmed active only on MSP430G2x52 variants like this part.
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 | 1 kB flash memory (512-byte segments) and 128 B RAM - sufficient for compact firmware with calibration data storage in info memory |
| ADC Resolution & Speed | 10-bit SAR ADC with 200 kSPS max sampling rate and autoscan mode - enables multi-channel analog monitoring without CPU intervention |
| Power Modes | Five software-selectable low-power modes including LPM4 (0.1 µA off-mode with RAM retention) - extends battery life in intermittent-sensing applications |
| Communication Interface | Universal Serial Interface (USI) supporting hardware SPI and I²C protocols - reduces firmware overhead for sensor interfacing |
| Debug Interface | Spy-Bi-Wire (2-wire JTAG) with SBWTDIO/SBWTCK pins - enables in-system programming and debugging using minimal PCB footprint |
| Supply Voltage | 1.8 V to 3.6 V operation - compatible with single-cell Li-ion, alkaline, or coin-cell power sources |
Pinout & Package
Package: 16-pin QFN (RSA), 3 mm × 3 mm, 0.5 mm pitch, exposed thermal pad recommended to be connected to DVSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (DVCC) | Digital supply voltage | Primary 1.8–3.6 V power rail for digital logic and I/O; requires local decoupling |
| 2–9, 11–15 (P1.0–P1.7, P2.0–P2.5) | General-purpose I/O with peripheral multiplexing | Eight P1 pins support ADC10 inputs (A0–A7), USI (SDI/SDO/SCL/TCK/TMS/TDO), Timer_A (TA0.0–TA0.2), and comparator inputs; P2.0–P2.5 are GPIO-only in 16-pin package |
| 10 (RST/NMI/SBWTDIO) | Reset / NMI input / debug data I/O | Active-low reset initiation, non-maskable interrupt source, and bidirectional Spy-Bi-Wire data channel |
| 11 (TEST/SBWTCK) | Test mode select / debug clock input | Selects JTAG/Spy-Bi-Wire mode; provides clock for programming and emulation |
| 12 (XOUT/P2.7) | Oscillator output / GPIO | Drives external crystal load or functions as general-purpose I/O when crystal not used |
| 13 (XIN/P2.6/TA0.1) | Oscillator input / timer output | Accepts 32.768 kHz crystal or external clock; also serves as Timer_A compare output TA0.1 |
| 14 (DVSS) | Digital ground | Reference return path for digital circuitry; must be tied to AVSS and thermal pad |
| 15 (AVCC) | Analog supply voltage | Dedicated 1.8–3.6 V rail for ADC and comparator; isolated from DVCC for noise reduction |
| 16 (AVSS) | Analog ground | Separate ground return for analog peripherals; connects to DVSS at single point near device |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power ADC10 | 10-bit SAR converter with internal 1.5 V/2.5 V reference, sample-and-hold, and autoscan - eliminates need for external ADC in cost-sensitive sensor nodes |
| Capacitive-touch I/O | Up to 16 pins support pin-oscillator mode for low-cost touch-button implementation without dedicated controller |
| Integrated comparator | Comparator_A+ with eight selectable inputs and programmable hysteresis - enables battery voltage monitoring and threshold detection without external components |
| Calibrated DCO | Digitally controlled oscillator factory-calibrated at 1/8/12/16 MHz - removes requirement for external crystal in timing-critical but non-precision applications |
| Programmable security fuse | On-chip code protection via blown security fuse - prevents unauthorized firmware readout during production programming |
Applications
| Smart Sensor Node | Portable Medical Monitor |
|---|---|
Use Scenario: Battery-powered environmental sensor collecting temperature, humidity, and light data at 10-second intervals for BLE transmission. IC Role / Device Role / Timing Role: Primary MCU executing sensor polling, ADC conversion, data preprocessing, and low-power scheduling; uses LPM3 with ACLK active for RTC-like timing. Use Value: 0.5 µA standby current and sub-1-µs wake-up enable >1-year operation on CR2032; integrated ADC and USI reduce BOM count by two ICs. | Use Scenario: Wearable pulse oximeter requiring analog front-end signal conditioning and real-time saturation calculation. IC Role / Device Role / Timing Role: Signal acquisition MCU handling photodiode current digitization via ADC10, driving LED timing with Timer_A PWM, and managing I²C communication with display driver. Use Value: Single-supply 1.8–3.6 V operation matches lithium coin cell; internal VREF eliminates external reference IC; comparator monitors battery health. |
| Industrial Control Panel | Energy Harvesting Node |
Use Scenario: DIN-rail mounted HVAC controller reading thermistor networks and driving relay outputs based on setpoint logic. IC Role / Device Role / Timing Role: System controller managing analog input scanning, PID computation, and discrete I/O control; uses brownout detector for safe shutdown during line dips. Use Value: 1 kB flash accommodates closed-loop algorithm and calibration tables; five power modes allow dynamic sleep depth adjustment per task urgency. | Use Scenario: Solar-powered soil moisture sensor waking every 5 minutes to measure capacitance, process result, and transmit via LoRa. IC Role / Device Role / Timing Role: Energy-aware host MCU coordinating energy harvesting management, ultra-low-duty-cycle sensing, and burst RF transmission. Use Value: 0.1 µA LPM4 retention current preserves state across long idle periods; USI supports low-pin-count SPI to LoRa transceiver; no external crystal needed due to calibrated DCO. |
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 | 2 kB flash, 256 B RAM, same peripherals and pinout - no functional or electrical change except memory size | Required where firmware exceeds 1 kB or RAM usage exceeds 128 B (e.g., added USB stack or larger sensor fusion buffer) | Select when future firmware growth or additional calibration data storage is anticipated; identical layout and debug compatibility |
| MSP430G2132IRSA16 | No ADC10 module; retains USI, Timer_A, comparator, and same memory - differs only in analog-to-digital capability | Suitable for purely digital control tasks (e.g., LED sequencer, relay timer) where analog sensing is handled externally | Choose when ADC is unnecessary and lowest BOM cost is critical; shares same footprint and power profile |
Compared with MSP430G2152IRSA16T, MSP430G2252IRSA16 offers headroom for firmware expansion without changing design, while MSP430G2132IRSA16 removes ADC10 to reduce unit cost - both maintain identical QFN-16 packaging, Spy-Bi-Wire debug, and ultra-low-power architecture.
Availability
MSP430G2152IRSA16T is available at Aetrix Electronics and suitable for smart sensor nodes, portable medical monitors, industrial control panels, and energy harvesting nodes requiring stable component supply and long-term manufacturability.
Supply support for MSP430G2152IRSA16T 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 was designed specifically for ultra-low-power, cost-sensitive embedded applications - prioritizing extended battery life, minimal external components, and rapid time-to-market for sensor and metering systems.
FAQ
What is the maximum ADC10 sampling rate supported by the MSP430G2152IRSA16T?
The MSP430G2152IRSA16T supports a maximum ADC10 sampling rate of 200 kSPS under optimal conditions (VCC = 3.0 V, fADC10CLK = 5 MHz). This rate is achievable in single-conversion or repeat-single-channel mode. Autoscan mode throughput depends on number of enabled channels and clock configuration, with typical sustained rates of 50–100 kSPS across eight inputs.
Does the MSP430G2152IRSA16T include hardware support for I²C communication?
Yes, the MSP430G2152IRSA16T includes a Universal Serial Interface (USI) module that provides full hardware support for I²C communication, including start/stop condition generation, ACK/NACK handling, and 7-bit address matching. I²C functionality is implemented on P1.6 (SCL) and P1.7 (SDA) pins, and requires no CPU intervention during byte transfers.
Can the MSP430G2152IRSA16T operate without an external crystal?
Yes, the MSP430G2152IRSA16T can operate without an external crystal. Its digitally controlled oscillator (DCO) is factory-calibrated at four frequencies (1/8/12/16 MHz) and provides stable clocking for all system and peripheral functions. External crystals are optional and used only when higher timing precision (e.g., for RTC or UART baud accuracy) is required.
What debug interface does the MSP430G2152IRSA16T use, and how many pins are required?
The MSP430G2152IRSA16T uses the Spy-Bi-Wire (SBW) debug interface, which requires only two pins: RST/NMI/SBWTDIO (pin 10) and TEST/SBWTCK (pin 11). This 2-wire interface supports full in-system programming, breakpoint debugging, and memory inspection - eliminating the need for a 4-pin JTAG header and reducing PCB routing complexity.
Is the ADC10 module present on all MSP430G2x12 devices, or only specific variants?
The ADC10 module is exclusive to the MSP430G2x52 series, including the MSP430G2152IRSA16T. It is not present on any MSP430G2x12 variant (e.g., MSP430G2112, MSP430G2132). Table 1 in the SLAS722G datasheet explicitly lists "ADC10 Channel" as "1" for MSP430G2152 and "–" for all G2x12 parts, confirming this functional distinction.
MSP430G2152IRSA16T 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:
MSP430G2152IRSA16T FAQ
1.How can I place an order for MSP430G2152IRSA16T through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430G2152IRSA16T 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 MSP430G2152IRSA16T reliable?
The price and inventory of MSP430G2152IRSA16T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430G2152IRSA16T is usually 5 days.
3.What payment methods are accepted for MSP430G2152IRSA16T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430G2152IRSA16T transactions.
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4.How is shipping managed for MSP430G2152IRSA16T?
MSP430G2152IRSA16T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430G2152IRSA16T 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 MSP430G2152IRSA16T?
For technical support, including MSP430G2152IRSA16T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430G2152IRSA16T requirements.
6.How does Aetrix verify that MSP430G2152IRSA16T is sourced from the original manufacturer or authorized distributors?
All MSP430G2152IRSA16T 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 MSP430G2152IRSA16T meets industry standards.
7.What is the process for return or replacement of MSP430G2152IRSA16T?
All MSP430G2152IRSA16T units undergo pre-shipment inspection (PSI). If there is an issue with MSP430G2152IRSA16T, 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 MSP430G2152IRSA16T part is unused and in its original packaging.
Return procedure for MSP430G2152IRSA16T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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