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Texas Instruments LM3S601-EQN50-C2T — Microcontrollers & Processors (MCU / MPU / DSP)

LM3S601-EQN50-C2T Stellaris ARM Cortex-M3 MCU, 50 MHz

MPNLM3S601-EQN50-C2T
Obsolete

Texas Instruments Stellaris® ARM® Cortex®-M3S 600 LM3S601-EQN50-C2T, 32-Bit Single-Core MCU, 50 MHz, 32KB Flash, 8K x 8 RAM, 36 I/O, I²C/UART/SPI, -40°C~105°C, 48-LQFP.

Texas Instruments LM3S601-EQN50-C2T datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM3S601-EQN50-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
ConnectivityI²C, Microwire, QEI, SPI, SSI, UART/USART
Number of i (O)36
Core processorARM® Cortex®-M3
Case48-LQFP
Program memory size32KB (32K x 8)

Product details

50 MHz Cortex-M3 with 32 KB Flash — what the memory budget means

The LM3S601-EQN50-C2T: The 8 KB SRAM partitions into stack, heap, and peripheral buffers.

Industrial temperature range and peripheral complement

The peripheral set includes I²C, Microwire, QEI, SPI, SSI, and UART/USART — the QEI (quadrature encoder interface) is a differentiator for closed-loop motor control, letting the MCU decode encoder position without bit-banging a timer. The 36 general-purpose I/O are multiplexed with these peripherals; check the alternate-function map in the datasheet to confirm your signal set fits the 48-LQFP pinout.

No official successor part number appears in the lifecycle record, so a pin-compatible drop-in replacement is not guaranteed.

Frequently asked questions

Is LM3S601-EQN50-C2T obsolete?

Yes. Texas Instruments has classified this part as obsolete. There is no official direct replacement listed, so new designs should avoid it unless you have a stockpile or are servicing an existing BOM through surplus channels.

Does LM3S601-EQN50-C2T have I2C and UART peripherals?

Yes. The connectivity block includes I²C, Microwire, QEI, SPI, SSI, and UART/USART interfaces, so it supports standard serial communication for sensors, displays, and serial links.

What is the closest pin-compatible alternative to LM3S601-EQN50-C2T?

No pin-compatible drop-in replacement is listed in the official lifecycle record. The Stellaris 600 series shares a common Cortex-M3 core and peripheral set across density options, but pin compatibility varies by Flash/RAM size and package variant. Cross-reference the base product number LM3S601 against the LM3S6xx family datasheet to identify a potential second source; without an official cross-reference, treat this as a single-sourced BOM line.