Skip to main content
Log in
Texas Instruments MSP430G2221IRSAQ1 — Microcontrollers & Processors (MCU / MPU / DSP)

TI MSP430G2221IRSAQ1 16-bit MCU, 16MHz, 2KB Flash, AEC-Q100

MPNMSP430G2221IRSAQ1
Obsolete

Texas Instruments MSP430G2 series, MSP430G2221IRSAQ1, 16-bit MCU, 16MHz, 2KB Flash, 128 x 8 RAM, I²C, SPI, 10 I/O, 1.8V-3.6V, -40°C~85°C, 16-VQFN Exposed Pad, AEC-Q100.

Texas Instruments MSP430G2221IRSAQ1 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

MSP430G2221IRSAQ1 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
Program memory size2KB (2K x 8)

Product details

16-bit automotive MCU with 2KB Flash — where it fits

It runs at 16MHz with 2KB of Flash program memory and 128 bytes of RAM, packaged in a 16-VQFN with exposed pad. The 1.8V to 3.6V supply range lets it run directly from a single lithium cell or a regulated 3.3V rail common in automotive ECUs.

AEC-Q100 and the 16-QFN footprint

Obsolete — sourcing reality and the replacement path

Both carry the same AEC-Q100 qualification and 16-QFN package option. For BOM lines already qualified to this exact code, the only channel is independent distribution — last-time-buy stock is exhausted through franchised distribution. If your design can absorb a firmware re-spin, moving to a current MSP430G2 variant removes the single-source risk.

Frequently asked questions

What is the replacement for MSP430G2221IRSAQ1?

Pin-compatible MSP430G2 family alternatives with the same AEC-Q100 rating and 16-QFN package include the MSP430G2231 (2KB Flash, 128B RAM) and MSP430G2452 (8KB Flash, 512B RAM). A firmware port is required to use either.

Does MSP430G2221IRSAQ1 have I2C?

Yes, the MSP430G2221IRSAQ1 includes I²C and SPI connectivity on dedicated pins.

Is MSP430G2221IRSAQ1 AEC-Q100 qualified?

Yes, it is part of the Automotive, AEC-Q100 qualified MSP430G2 series.