TI LM3S828-IQN50-C2T NRND — Stellaris Cortex-M3 50MHz, 64KB Flash, 3.3V
Texas Instruments, Stellaris ARM Cortex-M3S 800 series, 50MHz ARM Cortex-M3 MCU, 64KB Flash, 8KB SRAM, 3.0–3.6V supply, 28 I/O, 48-LQFP (7×7mm) tape-and-reel, NRND/EOL-hot, -40°C to 85°C.
- 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
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Specifications
| Parameter | Value |
|---|---|
| Series | Stellaris® ARM® Cortex®-M3S 800 |
| Mounting type | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 3V ~ 3.6V |
| Operating temperature | -40°C~85°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-LQFP |
| Data converters | A/D 8x10b |
| Program memory size | 64KB (64K x 8) |
Frequently asked questions
Is the LM3S828-IQN50-C2T obsolete, and what replaces it?
Yes — lifecycle_stage = eol_hot and productStatus = NRND. The TI migration path is the Tiva C-Series TM4C family, which carries the same ARM Cortex-M3 core architecture and broadly compatible peripheral register map. TI does not publish a direct pin-compatible successor under a single order code for this exact 48-LQFP variant, so the replacement evaluation should focus on TM4C parts with matching package and I/O count rather than a guaranteed drop-in. Contact your TI FAE or submit an RFQ to confirm a specific TM4C variant as the form-fit-function fit for your board.
Does the LM3S828 need an external reset supervisor?
The LM3S828 carries integrated brown-out detect/reset and power-on reset on chip. For 3.3V nominal rail the internal bandgap is sufficient without an external supervisor in most industrial control applications. The one exception is a design running near the 3.0V minimum under heavy PWM load in a sealed enclosure — in that case, adding an external supervisor is a low-cost safeguard even though it was not required on the original board.
Can Code Composer Studio projects for the LM3S828 be ported to TivaWare?
The peripheral set (I²C, SPI, UART, 8×10b ADC) is architecturally similar between Stellaris and Tiva, but register deltas exist — particularly in the ADC block where the 8-channel 10-bit converter on this part has register naming and interrupt handling differences from the Tiva ADC peripheral. A full peripheral driver rewrite is not required, but the ADC and any direct register access in the existing CCStudio project will need targeted updates. TI provides migration guides for the Stellaris-to-Tiva transition that document these deltas.