Skip to main content
Log in
Texas Instruments LM3S1601-IQC50-A2T — Microcontrollers & Processors (MCU / MPU / DSP)

LM3S1601-IQC50-A2T Stellaris ARM Cortex-M3 MCU, 50 MHz

MPNLM3S1601-IQC50-A2T
Obsolete

Texas Instruments Stellaris® ARM® Cortex®-M3S 1000 series LM3S1601-IQC50-A2T, 32-Bit Single-Core MCU, 50MHz, 128KB Flash, 32K x 8 SRAM, 60 I/O, 2.25V–2.75V, -40°C~85°C, 100-LQFP.

$26.9700Ref. price · indicative, final on quote
Texas Instruments LM3S1601-IQC50-A2T datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM3S1601-IQC50-A2T specifications
ParameterValue
SeriesStellaris® ARM® Cortex®-M3S 1000
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 size32K x 8
Core size32-Bit Single-Core
PeripheralsBrown-out Detect/Reset, POR, PWM, WDT
ConnectivityI²C, IrDA, Microwire, SPI, SSI, UART/USART
Number of i (O)60
Core processorARM® Cortex®-M3
Case100-LQFP
Program memory size128KB (128K x 8)

Product details

Obsolete — sourcing through independent distribution

The LM3S1601-IQC50-A2T is officially listed as obsolete by Texas Instruments.

Peripherals and connectivity

Connectivity interfaces cover I²C, IrDA, Microwire, SPI, SSI, and UART/USART — a broad set for sensor fusion, display control, and serial communication in industrial and embedded applications.

Package and footprint

Housed in a 100-LQFP package with a 14x14 mm body, the part is surface-mount only. The fine-pitch leads require controlled reflow profiling and careful PCB land pattern design. The package is MSL 3 out of the bag — bake before reflow if the moisture barrier bag has been open past the floor-life window.

Frequently asked questions

What is the replacement or equivalent for LM3S1601-IQC50-A2T?

For a pin-compatible alternative within the same Stellaris family, the LM3S1602 is a close sibling — the key difference is that the LM3S1602 offers additional memory or peripheral features. Verify the exact BOM requirements against the LM3S1602 datasheet before substitution.

What are the specifications of LM3S1601-IQC50-A2T?

Connectivity includes I²C, IrDA, Microwire, SPI, SSI, and UART/USART.