LM3S828-EGZ50-C2T: 50MHz Stellaris ARM Cortex-M3 MCU in 48-VFQFN
TI Stellaris LM3S828 series ARM Cortex-M3 MCU, order code LM3S828-EGZ50-C2T; 50MHz, 64KB Flash, 8KB RAM, 28 I/O, 3-3.6V supply, -40°C to 105°C operating temperature, 48-VFQFN exposed pad, Tape & Reel.
Specifications
| Parameter | Value |
|---|---|
| Series | Stellaris® ARM® Cortex®-M3S 800 |
| Mounting | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 3V ~ 3.6V |
| Operating temperature | -40°C~105°C(TA) |
| Speed | 50MHz |
| Package | Tape & Reel (TR) |
| RAM size | 8K x 8 |
| Core size | 32-Bit Single-Core |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Connectivity | I²C, Microwire, SPI, SSI, UART/USART |
| Number of i (O) | 28 |
| Core processor | ARM® Cortex®-M3 |
| Case | 48-VFQFN Exposed Pad |
| Data converters | A/D 8x10b |
| Program memory size | 64KB (64K x 8) |
Frequently asked questions
Can I run my existing TI Tiva firmware on the LM3S828 without changes?
No. The LM3S828 Stellaris driverlib and peripheral register mapping diverge from the Tiva peripheral driver library — a recompile and firmware porting work is required, even though both are Cortex-M3 parts. Binary compatibility is not maintained across the Stellaris-to-Tiva transition.
Does the 8KB RAM fit a FreeRTOS application with a CANopen stack?
The 8KB RAM ceiling is tight. A FreeRTOS heap consuming ~6KB combined with a CANopen stack will approach the boundary under typical runtime conditions — memory budget analysis against the actual compiled binary is required before committing the line.
How do I source the LM3S828-EGZ50-C2T given the EOL-hot status?
Open an RFQ immediately to identify available channel stock and confirm lot traceability. The eol_hot window means allocation can close without advance notice — a documented last-time-buy quantity should be agreed with your supplier before the window resolves further.