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Texas Instruments LM3S617-EGZ50-C2T — Microcontrollers & Processors (MCU / MPU / DSP)

LM3S617-EGZ50-C2T ARM Cortex-M3 MCU, 50 MHz, 32 KB Flash

MPNLM3S617-EGZ50-C2T
End of Life

Texas Instruments Stellaris® ARM® Cortex®-M3S 600 series LM3S617-EGZ50-C2T, 32-Bit Single-Core MCU, 50MHz, 32KB Flash, 8K x 8 RAM, 30 I/O, 6x10b ADC, 3V~3.6V, -40°C~105°C, 48-VQFN (7x7).

Texas Instruments LM3S617-EGZ50-C2T datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

LM3S617-EGZ50-C2T specifications
ParameterValue
SeriesStellaris® ARM® Cortex®-M3S 600
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))3V ~ 3.6V
Operating temperature-40°C~105°C(TA)
Speed50MHz
PackageTape & Reel (TR)
RAM size8K x 8
Core size32-Bit Single-Core
PeripheralsBrown-out Detect/Reset, POR, PWM, WDT
ConnectivityMicrowire, SPI, SSI, UART/USART
Number of i (O)30
Core processorARM® Cortex®-M3
Case48-VFQFN Exposed Pad
Data convertersA/D 6x10b
Program memory size32KB (32K x 8)

Product details

What this Cortex-M3 MCU brings to a control board

50 MHz core and memory — what fits in the BOM

The 50 MHz ARM Cortex-M3 handles real-time control loops and protocol handling without needing a higher-cost part.

The 30 general-purpose I/O are enough for a keypad matrix, a few LED indicators, and a parallel interface to a small display or external ADC.

No official second-source alternate is recorded, but the Stellaris family includes pin-compatible density variants that can serve as a drop-in upgrade if the firmware grows.

Frequently asked questions

What is the closest pin-compatible alternative to LM3S617-EGZ50-C2T?

Within the Stellaris® ARM® Cortex®-M3S 600 series, higher-density Flash variants (e.g., 64 KB or 128 KB Flash parts in the same 48-VQFN package) are pin-compatible and can serve as a drop-in upgrade if the firmware requires more code space.