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MSP430G2231IPW14R
Texas Instruments
IC MCU 16BIT 2KB FLASH 14TSSOP
105253 Pcs New Original In Stock
MSP430 CPU16 MSP430G2xx Microcontroller IC 16-Bit 16MHz 2KB (2K x 8) FLASH 14-TSSOP
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MSP430G2231IPW14R
Product Overview
1288916
DiGi Electronics Part Number
MSP430G2231IPW14R-DGManufacturer
Texas Instruments
MSP430G2231IPW14R
Description
IC MCU 16BIT 2KB FLASH 14TSSOPInventory
105253 Pcs New Original In Stock
MSP430 CPU16 MSP430G2xx Microcontroller IC 16-Bit 16MHz 2KB (2K x 8) FLASH 14-TSSOP
Quantity
Minimum 1
Minimum 1
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MSP430G2231IPW14R Technical Specifications
Category
Embedded, Microcontrollers
Packaging
Cut Tape (CT) & Digi-Reel®
Series
MSP430G2xx
Product Status
Active
DiGi-Electronics Programmable
Verified
Core Processor
MSP430 CPU16
Core Size
16-Bit
Speed
16MHz
Connectivity
I2C, SPI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number of I/O
10
Program Memory Size
2KB (2K 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)
Mounting Type
Surface Mount
Supplier Device Package
14-TSSOP
Package / Case
14-TSSOP (0.173", 4.40mm Width)
Base Product Number
MSP430G2231
Datasheet & Documents
Manuals
MSP430x2xx User Guide
Manufacturer Product Page
MSP430G2231IPW14R Specifications
HTML Datasheet
MSP430G2231IPW14R-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.31.0001
Additional Information
Other Names
296-31697-1
-MSP430G2231IPW14R-NDR
296-31697-2
MSP430G2231IPW14R-DG
2156-MSP430G2231IPW14R
TEXTISMSP430G2231IPW14R
296-31697-6
Standard Package
2,000
Reviews
5.0/5.0-(Show up to 5 Ratings)
Dec 02, 2025
Je suis convaincu par leur attention à l’écologie et leurs tarifs avantageux.
Dec 02, 2025
Their commitment to excellent support sets them apart from other suppliers.
Dec 02, 2025
They make it easy to access reliable products without overspending.
Dec 02, 2025
The entire process from order to delivery was impressively fast and smooth.
Dec 02, 2025
Quick shipment and great prices—this store is reliable and cost-effective.
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Frequently Asked Questions (FAQ)
Can the MSP430G2231IPW14R reliably operate in a battery-powered sensor node running at 1.8V with intermittent 3.3V logic inputs from an external I2C temperature sensor?
Yes, the MSP430G2231IPW14R can tolerate 3.3V logic inputs even when powered at 1.8V due to its robust I/O structure that supports voltage tolerance up to Vcc + 0.3V. However, to ensure long-term reliability and avoid marginal operation during brown-out conditions, use a series resistor (1–10 kΩ) on SDA/SCL lines or implement level-shifting with a bidirectional translator like the TXB0102. This mitigates risk of latch-up or accelerated oxide degradation in prolonged mixed-voltage deployments, especially in industrial environments where supply transients are common.
Is it safe to replace a legacy MSP430G2211IPW14R design with the MSP430G2231IPW14R without firmware changes, given both are 14-TSSOP and share the same pinout?
While the MSP430G2231IPW14R is pin-compatible and software-compatible with the MSP430G2211IPW14R, direct drop-in replacement requires verification of memory usage. The MSP430G2231IPW14R has 2KB Flash and 128B RAM versus 1KB/64B on the G2211—this means existing code may fit, but if the original firmware used memory-mapped peripherals or relied on precise timing loops calibrated for smaller memory wait states, subtle timing shifts could occur. Always revalidate interrupt latency and peripheral initialization sequences, especially if using the internal DCO without external calibration.
How does the internal oscillator accuracy of the MSP430G2231IPW14R impact real-time clock (RTC) functionality in a low-power data logger operating over -20°C to 70°C?
The MSP430G2231IPW14R’s internal oscillator has a typical accuracy of ±2% at 25°C but can drift up to ±4% over the full -40°C to 85°C range, making it unsuitable for standalone RTC applications requiring better than 5-minute daily drift. For timekeeping in data logging, pair the MCU with a low-cost external 32.768 kHz crystal (e.g., Seiko Epson MC-306) connected to the XT1 pins, or use periodic synchronization via a GPS or network time source. Relying solely on the internal DCO introduces cumulative timing errors that compromise timestamp integrity in unattended systems.
What are the risks of using the MSP430G2231IPW14R in a motor control application driving a small DC motor via PWM, given its limited current sourcing capability and lack of integrated FET drivers?
The MSP430G2231IPW14R GPIO pins can source/sink only ~6 mA per pin (max 20 mA absolute), which is insufficient to drive motor loads directly. Driving a motor without a gate driver or H-bridge (e.g., DRV8837 or L293D) risks latch-up, excessive heat, or premature I/O failure due to inductive kickback and overcurrent. Always use a dedicated motor driver IC with flyback diodes, and isolate the MCU’s PWM output via a buffer (e.g., 74LVC1G125) if switching frequencies exceed 10 kHz. Additionally, ensure ground return paths are low-impedance to prevent noise coupling into the ADC or reset circuits.
Can the MSP430G2231IPW14R be used in a safety-critical automotive subsystem like door lock control, considering its lack of ECC on Flash and single-core architecture?
The MSP430G2231IPW14R is not recommended for ASIL-rated automotive functions due to the absence of hardware fault detection features such as ECC, lockstep cores, or built-in self-test (BIST). While it meets industrial temperature ranges (-40°C to 85°C) and is RoHS3 compliant, automotive door lock systems typically require ISO 26262 compliance, which this device does not support. For non-safety auxiliary functions (e.g., status LED control), it may be acceptable with external watchdog supervision and periodic software checksums, but always conduct a full FMEA and avoid deployment in circuits where failure could lead to unintended motion or security breaches.
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MSP430G2231IPW14R CAD Models
Texas Instruments MSP430G2231IPW14R PCB symbols & footprints
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