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Texas Instruments MSP430G2231IRSAQ1 — Microcontrollers & Processors (MCU / MPU / DSP)

TI MSP430G2231IRSAQ1 16-bit MCU, 16 MHz, 2 KB Flash

MPNMSP430G2231IRSAQ1
Obsolete

Texas Instruments MSP430G2 series, MSP430G2231IRSAQ1, 16-Bit MCU, 16MHz, 2KB (2K x 8) FLASH, 128 x 8 RAM, I²C, SPI, 10 I/O, A/D 8x10b, 1.8V ~ 3.6V, -40°C~85°C, 16-VQFN Exposed Pad, Surface Mount, Tray.

Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

MSP430G2231IRSAQ1 specifications
ParameterValue
SeriesAutomotive, AEC-Q100, MSP430G2
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.8V ~ 3.6V
Operating temperature-40°C~85°C(TA)
Speed16MHz
PackageTray
RAM size128 x 8
Core size16-Bit
PeripheralsBrown-out Detect/Reset, POR, PWM, WDT
ConnectivityI²C, SPI
Number of i (O)10
Core processorMSP430 CPU16
Case16-VQFN Exposed Pad
Data convertersA/D 8x10b
Program memory size2KB (2K x 8)

Product details

16 MHz, 2 KB Flash, AEC-Q100 — the automotive MSP430G2 that's now obsolete

Connectivity includes I²C and SPI.

No last-time-buy window or successor part number is recorded in the official lifecycle data.

16 MHz core — enough for sensor-level control loops

The 16 MHz clock rate, driven by an internal oscillator, is typical for the MSP430G2 value line. It handles basic sensor polling, PWM generation, and serial communication without external timing components. The 128-byte RAM limits buffer depth — expect to run tight interrupt service routines and avoid large lookup tables in RAM. The 2 KB Flash is sufficient for small state machines and calibration tables, but leaves no room for a real-time operating system or over-the-air update staging.

16-QFN with exposed pad — layout and rework notes

The pad also serves as the primary electrical ground connection — a poor solder joint here can cause intermittent brown-out resets.

Frequently asked questions

Is MSP430G2231IRSAQ1 obsolete?

Buyers need to know if they can still source the part or must switch to a replacement.

What is a suitable replacement for MSP430G2231IRSAQ1?

Directly drives BOM changes and sourcing decisions when the original is unavailable.

Where can I buy MSP430G2231IRSAQ1?

Critical for transactional intent; users need active distributor links or stock check.

What is the datasheet for MSP430G2231IRSAQ1?

Required for design validation and pinout/electrical specifications.

What is the price of MSP430G2231IRSAQ1?

Essential for cost estimation and BOM budgeting.

What is the pinout of MSP430G2231IRSAQ1?

Needed for PCB layout and hardware compatibility checks.