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Texas Instruments LM3S1Z16-IQR50-C5T — Microcontrollers & Processors (MCU / MPU / DSP)

TI LM3S1Z16-IQR50-C5T ARM Cortex-M3 MCU, 50MHz, 16KB Flash

MPNLM3S1Z16-IQR50-C5T
Obsolete

Texas Instruments Stellaris ARM Cortex-M3S 1000 series, 32-bit single-core MCU, LM3S1Z16-IQR50-C5T, 50MHz, 16KB Flash, 6KB SRAM, 33 I/O, 64-LQFP, -40°C to 85°C, Tape & Reel.

Texas Instruments LM3S1Z16-IQR50-C5T datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM3S1Z16-IQR50-C5T specifications
ParameterValue
SeriesStellaris® ARM® Cortex®-M3S 1000
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.08V ~ 1.32V
Operating temperature-40°C~85°C(TA)
Speed50MHz
PackageTape & Reel (TR)
RAM size6K x 8
Core size32-Bit Single-Core
PeripheralsBrown-out Detect/Reset, DMA, POR, PWM, WDT
ConnectivityI²C, IrDA, LINbus, Microwire, SPI, SSI, UART/USART
Number of i (O)33
Core processorARM® Cortex®-M3
Case64-LQFP
Data convertersA/D 8x10b
Program memory size16KB (16K x 8)

Product details

50MHz Cortex-M3 with 16KB Flash — the memory and speed envelope

The LM3S1Z16-IQR50-C5T: On-chip memory comprises 16KB of Flash (16K x 8) and 6KB of SRAM (6K x 8), which together set the firmware and data memory budget for the application. 33 general-purpose I/O lines are available in the 64-LQFP package (10x10 mm), with the core supplied from 1.08V to 1.32V.

Peripheral set for sensor and actuator control

Connectivity includes I²C, SPI, SSI, Microwire, UART/USART, LINbus, and IrDA — covering the common serial buses for sensor readout, actuator commands, and fieldbus bridging.

Industrial temperature grade and obsolete status

No pin-compatible replacement is documented in the Stellaris series.

Frequently asked questions

What is LM3S1Z16-IQR50-C5T's core speed and memory?

The ARM Cortex-M3 core runs at 50MHz, with 16KB of Flash program memory and 6KB of SRAM.