16 MHz — what it means for the application
Lifecycle and sourcing reality
TI has marked the MSP430G2001IRSARQ1 as obsolete. For a BOM line that needs this exact order code, the only channel is the surplus and independent-distribution market.

Texas Instruments MSP430G2001IRSARQ1, Automotive AEC-Q100, 16-Bit MSP430 CPU16, 16MHz, 512B Flash, 128 x 8 RAM, 10 I/O, 16-VQFN Exposed Pad, -40°C to 85°C.
| Parameter | Value |
|---|---|
| Series | Automotive, AEC-Q100, MSP430G2 |
| Mounting | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 1.8V ~ 3.6V |
| Operating temperature | -40°C~85°C(TA) |
| Speed | 16MHz |
| Package | Tape & Reel (TR) |
| RAM size | 128 x 8 |
| Core size | 16-Bit |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Number of i (O) | 10 |
| Core processor | MSP430 CPU16 |
| Case | 16-VQFN Exposed Pad |
| Program memory size | 512B (512 x 8) |
TI has marked the MSP430G2001IRSARQ1 as obsolete. For a BOM line that needs this exact order code, the only channel is the surplus and independent-distribution market.
A pin-compatible higher-density sibling in the same MSP430G2xx family, such as the MSP430G2231 (2 KB Flash), can replace it in the same socket if the firmware fits and the peripheral set meets the application requirements. Verify the memory map and register compatibility before committing the BOM.
The core runs at 16 MHz, which is the maximum clock frequency for this MSP430G2xx value-line device.
It belongs to the Automotive, AEC-Q100 qualified MSP430G2 series, indicating it is designed and tested for automotive-grade reliability.