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Texas Instruments LM3S5747-IQC50-A0 — Microcontrollers & Processors (MCU / MPU / DSP)

LM3S5747-IQC50-A0 Stellaris ARM Cortex-M3 MCU, 50MHz

MPNLM3S5747-IQC50-A0
Obsolete

Texas Instruments Stellaris ARM Cortex-M3S 5000 series MCU, LM3S5747-IQC50-A0, 32-bit single-core, 50MHz, 128KB Flash, 64K x 8 SRAM, 100-LQFP, -40°C to 85°C.

Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM3S5747-IQC50-A0 specifications
ParameterValue
SeriesStellaris® ARM® Cortex®-M3S 5000
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))2.25V ~ 2.75V
Operating temperature-40°C~85°C(TA)
Speed50MHz
PackageTray
RAM size64K x 8
Core size32-Bit Single-Core
PeripheralsBrown-out Detect/Reset, DMA, POR, PWM, WDT
ConnectivityCANbus, I²C, IrDA, Microwire, SPI, SSI, UART/USART, USB
Number of i (O)61
Core processorARM® Cortex®-M3
Case100-LQFP
Data convertersA/D 8x10b
Program memory size128KB (128K x 8)

Product details

50 MHz Cortex-M3 with CAN and USB — what the part offers

The peripheral set includes CAN 2.0B, full-speed USB, multiple UART/SPI/I²C interfaces, and an 8-channel 10-bit ADC, plus 61 GPIOs in a 100-LQFP package.

Obsolete — no official successor on record

This part is listed as obsolete by the manufacturer. No direct pin-compatible replacement or successor order code is provided in the official records. For new designs, a current-generation Cortex-M3 or M4 part from TI's Tiva or other series would be the natural migration path, though pin compatibility is not guaranteed.

Frequently asked questions

What is the replacement or equivalent for LM3S5747-IQC50-A0?

No official pin-compatible replacement is documented. For new designs, consider a current-generation TI Tiva C Series or an STM32F1/F4 with similar peripheral mix — but verify pin compatibility and software migration effort. For existing BOMs, the LM3S5747-IQC50-A0 can be supplied through independent channels against an RFQ.