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Texas Instruments MSP430G2332QPW2REP
- Part No.:
- MSP430G2332QPW2REP
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MSP430G2332QPW2REP.pdf
- Description:
- IC MCU 16BIT 4KB FLASH 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,670
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Product details
Overview
MSP430G2332QPW2REP from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller with 1 kB flash, 256 B RAM, 10-bit ADC, Timer_A3, USI (SPI/I²C), and 16 I/O pins-including touch-sense capability-operating from 1.8 V to 3.6 V across –40°C to 125°C. It targets radiation-tolerant sensor acquisition and telemetry in defense/aerospace systems requiring long battery life and high reliability.
For engineers reviewing the MSP430G2332QPW2REP datasheet, MSP430G2332QPW2REP pinout, MSP430G2332QPW2REP application, or MSP430G2332QPW2REP equivalent, key selection factors include its extended temperature grade, Spy-Bi-Wire debug interface, brownout detection, five low-power modes, and integrated analog peripherals for compact embedded measurement nodes.
Technical Context
The MSP430G2332QPW2REP implements a 16-bit RISC CPU with constant generators and seven addressing modes, executing register-to-register instructions in one CPU cycle. Its clock system integrates a digitally controlled oscillator (DCO) calibrated at 1/8/12/16 MHz, plus internal LF and external 32-kHz crystal support-enabling sub-1 µs wake-up from LPM4.
Peripherals include a 10-bit 200-ksps SAR ADC with internal reference and autoscan, a 16-bit Timer_A3 with three capture/compare registers supporting PWM and interval timing, and a USI module configurable for SPI or I²C communication-all accessible via memory-mapped registers and interrupt-driven operation.
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 density |
| Flash / RAM | 1 kB flash program memory and 256 B RAM-sufficient for firmware + real-time data buffers in compact telemetry nodes |
| ADC Resolution & Speed | 10-bit SAR ADC with 200 ksps sampling rate and autoscan-supports multi-channel analog sensor monitoring without CPU overhead |
| Power Modes | Five software-selectable low-power modes; standby current = 0.5 µA, off-mode (RAM retention) = 0.1 µA |
| Operating Temperature | –40°C to +125°C extended range-qualified for harsh-environment deployment in defense and aerospace platforms |
| Debug Interface | Spy-Bi-Wire 2-wire interface-enables in-system programming and real-time debugging with minimal PCB footprint |
| Package | 20-pin TSSOP (PW20)-compatible with standard surface-mount assembly and provides thermal resistance θJA = 98.7°C/W |
Pinout & Package
20-pin TSSOP (PW20) package with exposed pad recommended for thermal management; pin pitch 0.65 mm, body size 6.5 × 4.4 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DVCC (Pin 1) | Supply voltage input | 1.8–3.6 V digital core power rail; requires local 100 nF decoupling |
| P1.0/TA0CLK/ACLK/A0 (Pin 2) | Multi-function I/O | Configurable as timer clock input, ACLK output, or ADC channel 0-enables flexible signal routing |
| RST/NMI/SBWTDIO (Pin 16) | Reset & debug I/O | Active-low reset, non-maskable interrupt, and Spy-Bi-Wire data I/O-shared pin reduces debug footprint |
| TEST/SBWTCK (Pin 17) | Debug clock input | Provides Spy-Bi-Wire clock during programming and emulation-no external JTAG header needed |
| XIN/P2.6/TA0.1 (Pin 19) | Clock input & I/O | Accepts 32-kHz crystal or external clock; also serves as Timer_A compare output TA0.1 |
| DVSS (Pin 20) | Digital ground | Reference return path for DVCC; must be connected to system ground plane with low-inductance path |
Key Features
| Feature | Design Value |
|---|---|
| Brownout detector | Monitors DVCC and triggers reset if voltage drops below threshold-ensures deterministic startup and fault recovery |
| Ultra-low-power standby mode | 0.5 µA consumption with RAM retention and wake-up capability-extends battery life in intermittent-sensing applications |
| Integrated touch-sense I/O | Up to 16 pins support capacitive touch sensing via built-in pin oscillators-eliminates external RC networks |
| Calibrated DCO frequencies | Four factory-trimmed DCO settings (1/8/12/16 MHz)-enables precise timing without external crystal in cost-sensitive designs |
| Programmable security fuse | On-chip code protection prevents unauthorized readout of flash contents-meets defense-grade firmware confidentiality requirements |
Applications
| Avionics Sensor Node | Secure Telemetry Module |
|---|---|
Use Scenario: Real-time monitoring of cabin pressure, temperature, and vibration in unmanned aerial vehicles using analog sensors. IC Role / Device Role / Timing Role: MSP430G2332QPW2REP acts as the primary data acquisition controller-sampling sensors via ADC, processing values, and transmitting over USI/I²C to flight computer. Use Value: Sub-1 µs wake-up from LPM4 enables rapid response to transient events while maintaining average current <1 µA between samples. | Use Scenario: Secure transmission of encrypted health metrics from field-deployed military radios to command centers. IC Role / Device Role / Timing Role: MSP430G2332QPW2REP performs sensor fusion, AES-ready data prep, and manages secure boot via protected flash and security fuse. Use Value: Extended –40°C to 125°C operation ensures reliable function in desert or arctic environments without thermal derating. |
| Spacecraft Payload Monitor | Radiation-Hardened Data Logger |
Use Scenario: Onboard logging of solar array voltage, battery state, and thermal gradients aboard low-Earth orbit satellites. IC Role / Device Role / Timing Role: MSP430G2332QPW2REP serves as radiation-tolerant supervisory MCU-controlling ADC sequencing, managing EEPROM writes, and triggering watchdog resets on anomaly detection. Use Value: Brownout detection and five low-power modes allow continuous operation during orbital eclipse periods with minimal energy drain. | Use Scenario: Long-duration environmental data collection in nuclear facility perimeter monitoring systems. IC Role / Device Role / Timing Role: MSP430G2332QPW2REP acquires analog inputs from radiation detectors and gas sensors, stores timestamped results in flash, and transmits batches via USI/SPI to gateway. Use Value: 10-bit ADC with internal reference and autoscan supports simultaneous multi-sensor capture without external precision references. |
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 |
|---|---|---|---|
| MSP430FR2355TRHBR | Ferroelectric RAM (64 KB FRAM), no flash; higher ADC resolution (12-bit); operates up to 100°C only | Lacks extended temperature rating and radiation-hardened qualification; better for consumer-grade industrial loggers | Select when FRAM endurance and write speed outweigh need for military-grade temp range |
| MSP430F2330IPW20R | Same 1 kB flash/256 B RAM, but commercial grade (–40°C to 85°C); lacks EP suffix and defense/aerospace certifications | Not qualified for defense/aerospace use; lower cost but no extended lifecycle or traceability support | Choose only for non-critical terrestrial applications where full EP compliance is unnecessary |
Compared with MSP430FR2355TRHBR and MSP430F2330IPW20R, the MSP430G2332QPW2REP uniquely combines extended temperature operation, defense-grade traceability, and Spy-Bi-Wire debug in a 20-pin TSSOP-making it the sole option for space-constrained, mission-critical embedded systems requiring full EP qualification.
Availability
MSP430G2332QPW2REP is available at Aetrix Electronics and suitable for avionics sensor nodes, secure telemetry modules, and spacecraft payload monitors requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MSP430G2332QPW2REP 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 and embedded processing solutions for industrial, automotive, and aerospace markets.
The MSP430G2xx-EP product line delivers radiation-tolerant, extended-temperature microcontrollers designed specifically for defense, aerospace, and medical applications demanding high reliability and long-term supply assurance.
FAQ
What is the maximum operating frequency of the MSP430G2332QPW2REP's DCO?
The MSP430G2332QPW2REP's digitally controlled oscillator (DCO) is factory-calibrated at four frequencies: 1 MHz, 8 MHz, 12 MHz, and 16 MHz. The maximum supported DCO frequency is 16 MHz, achievable under nominal supply (2.2–3.6 V) and temperature conditions. This allows the CPU to execute instructions at up to 16 million cycles per second while maintaining ultra-low power consumption in active mode.
Does the MSP430G2332QPW2REP support hardware UART functionality?
No, the MSP430G2332QPW2REP does not include a dedicated hardware UART peripheral. It features a Universal Serial Interface (USI) module that supports SPI and I²C protocols only. For UART communication, designers must implement software-based bit-banged UART or use external level-shifting transceivers interfaced through GPIO and Timer_A capture/compare resources.
How many ADC channels does the MSP430G2332QPW2REP support, and what is the input voltage range?
The MSP430G2332QPW2REP supports eight ADC10 analog input channels (A0–A7), selectable via the ADC10CTL1 register. The input voltage range is 0 V to AVCC (or to an externally applied VREF+), with VREF– tied to AVSS or programmable to an internal reference. Full-scale conversion uses the selected reference, enabling accurate measurements across sensor outputs from 0–3.3 V without external scaling.
Is the MSP430G2332QPW2REP pin-compatible with other devices in the MSP430G2xx family?
Yes, the MSP430G2332QPW2REP shares the same 20-pin TSSOP (PW20) package and identical pinout with other G2xx-EP variants including MSP430G2432QPW2REP and MSP430G2532QPW2REP. Signal mapping, power/ground locations, and debug pin assignments are consistent-allowing direct substitution in existing layouts when flash/RAM or peripheral differences are acceptable.
What debug interfaces are supported by the MSP430G2332QPW2REP?
The MSP430G2332QPW2REP supports only the 2-wire Spy-Bi-Wire (SBW) interface via pins RST/NMI/SBWTDIO (Pin 16) and TEST/SBWTCK (Pin 17). It does not support full 4-wire JTAG. SBW enables full in-system programming, real-time debugging, and flash memory access using TI's MSP-FET or compatible emulators-reducing PCB routing complexity versus traditional JTAG headers.
MSP430G2332QPW2REP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- 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:
- 16
- 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:
- A/D 8x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430G2332QPW2REP FAQ
1.How can I place an order for MSP430G2332QPW2REP through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430G2332QPW2REP 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 MSP430G2332QPW2REP reliable?
The price and inventory of MSP430G2332QPW2REP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430G2332QPW2REP is usually 5 days.
3.What payment methods are accepted for MSP430G2332QPW2REP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430G2332QPW2REP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430G2332QPW2REP?
MSP430G2332QPW2REP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430G2332QPW2REP 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 MSP430G2332QPW2REP?
For technical support, including MSP430G2332QPW2REP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430G2332QPW2REP requirements.
6.How does Aetrix verify that MSP430G2332QPW2REP is sourced from the original manufacturer or authorized distributors?
All MSP430G2332QPW2REP 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 MSP430G2332QPW2REP meets industry standards.
7.What is the process for return or replacement of MSP430G2332QPW2REP?
All MSP430G2332QPW2REP units undergo pre-shipment inspection (PSI). If there is an issue with MSP430G2332QPW2REP, 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 MSP430G2332QPW2REP part is unused and in its original packaging.
Return procedure for MSP430G2332QPW2REP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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