Stellaris® ARM® Cortex®-M3S 9000 series, LM3S9790-IBZ80-C3T, 32-Bit Single-Core MCU, 80MHz, 128KB (128K x 8) FLASH, 64K x 8 RAM, 108-LFBGA, -40°C~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 | 64K x 8 |
| Core size | 32-Bit Single-Core |
| Peripherals | Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT |
| Connectivity | CANbus, EBI/EMI, Ethernet, I²C, IrDA, LINbus, Microwire, SPI, SSI, UART/USART, USB OTG |
| Number of i (O) | 60 |
| Core processor | ARM® Cortex®-M3 |
| Case | 108-LFBGA |
| Data converters | A/D 16x10b |
| Program memory size | 128KB (128K x 8) |
The LM3S9790-IBZ80-C3T: It integrates a rich peripheral set including Ethernet MAC+PHY, CAN 2.0B, USB OTG, multiple UART/SPI/I²C, and a 16-channel 10-bit ADC.
The 60 GPIOs are distributed across the ball array — verify the ball-map against your PCB layout.
No official pin-compatible replacement is recorded. The closest functional alternatives are other Stellaris 9000 series devices with the same 108-BGA footprint and peripheral set, but verify the ball map and firmware compatibility. For new designs, consider TI's TM4C129x series which offers similar Ethernet/CAN/USB connectivity with a Cortex-M4F core.
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