TI Stellaris ARM Cortex-M3S 9000 series LM3S9D90-IBZ80-A1T, 32-bit MCU, 80MHz, 512KB Flash, 96KB RAM, Ethernet + USB OTG + CAN, 60 I/O, 108-BGA, -40 to 85°C.
| Parameter | Value |
|---|---|
| Series | Stellaris® ARM® Cortex®-M3S 9000 |
| Mounting | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 1.235V ~ 1.365V |
| Operating temperature | -40°C~85°C(TA) |
| Speed | 80MHz |
| Package | Tape & Reel (TR) |
| RAM size | 96K x 8 |
| Core size | 32-Bit Single-Core |
| Peripherals | Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT |
| Connectivity | CANbus, Ethernet, I²C, IrDA, LINbus, Microwire, QEI, SPI, SSI, UART/USART, USB OTG |
| Number of i (O) | 60 |
| Core processor | ARM® Cortex®-M3 |
| Case | 108-LFBGA |
| Data converters | A/D 16x12b |
| Program memory size | 512KB (512K x 8) |
The 512 KB Flash leaves room for a bootloader, application image, and a small file system for configuration logging. 96 KB RAM is enough for two Ethernet frames plus a few CAN message buffers — but not for heavy graphics or large data logs.
Yes, TI has marked the LM3S9D90-IBZ80-A1T obsolete. No factory last-time-buy window remains. The part is available through independent distribution on a sourced-to-order basis — quoted against an RFQ with current market pricing and availability confirmed at quote time.
TI does not list a direct pin-compatible replacement for the LM3S9D90-IBZ80-A1T. The Stellaris line was superseded by the Tiva C series, but those devices are not pin-compatible. For a BOM freeze or repair stock, this is a surplus-channel buy.
The LM3S9D90-IBZ80-A1T is rated at 80 MHz on the ARM Cortex-M3 core.
The LM3S9D90-IBZ80-A1T belongs to the Stellaris ARM Cortex-M3S 9000 series from Texas Instruments.