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Texas Instruments LM3S6537-IQC50-A2T — Microcontrollers & Processors (MCU / MPU / DSP)

LM3S6537-IQC50-A2T Stellaris ARM Cortex-M3 MCU, 50MHz, 96KB Flash

MPNLM3S6537-IQC50-A2T
Obsolete

Texas Instruments Stellaris® ARM® Cortex®-M3S 6000 series, LM3S6537-IQC50-A2T, 32-bit ARM Cortex-M3 MCU, 50MHz core, 96KB Flash, 64K x 8 RAM, Ethernet, I²C, SPI, UART, 41 I/O, 100-LQFP, -40 to 85 °C.

$35.0088Ref. price · indicative, final on quote
Texas Instruments LM3S6537-IQC50-A2T datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM3S6537-IQC50-A2T specifications
ParameterValue
SeriesStellaris® ARM® Cortex®-M3S 6000
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))2.25V ~ 2.75V
Operating temperature-40°C~85°C(TA)
Speed50MHz
PackageTape & Reel (TR)
RAM size64K x 8
Core size32-Bit Single-Core
PeripheralsBrown-out Detect/Reset, POR, PWM, WDT
ConnectivityEthernet, I²C, IrDA, Microwire, SPI, SSI, UART/USART
Number of i (O)41
Core processorARM® Cortex®-M3
Case100-LQFP
Data convertersA/D 4x10b
Program memory size96KB (96K x 8)

Product details

The LM3S6537-IQC50-A2T is a 32-bit ARM Cortex-M3 microcontroller from Texas Instruments' Stellaris 6000 series. It runs at 50 MHz with 96 KB of Flash program memory and 64K x 8 of SRAM, making it a mid-density MCU for control and connectivity applications. The part includes an integrated Ethernet MAC and PHY, plus I²C, SPI, SSI, UART, IrDA, and Microwire serial interfaces, along with a 4-channel 10-bit ADC, PWM, and watchdog timer. It is rated for the industrial temperature range of -40 to 85 °C and comes in a 100-LQFP surface-mount package.

Lifecycle status: obsolete — sourcing reality

Texas Instruments has marked the LM3S6537-IQC50-A2T as obsolete (EOL). This part is no longer available through franchised distribution channels.

Frequently asked questions

What is LM3S6537-IQC50-A2T's listed speed?

The core runs at 50 MHz, delivering approximately 62.5 DMIPS from the ARM Cortex-M3 pipeline.