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Texas Instruments LM3S808-IGZ50-C2T — Microcontrollers & Processors (MCU / MPU / DSP)

LM3S808-IGZ50-C2T Stellaris ARM Cortex-M3 MCU, 50 MHz, 64 KB Flash

MPNLM3S808-IGZ50-C2T
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Texas Instruments Stellaris® ARM® Cortex®-M3S 800 series LM3S808-IGZ50-C2T, 32-bit MCU, 50 MHz, 64 KB Flash, 8 KB RAM, 28 I/O, 8x10b ADC, I²C/SPI/UART, -40°C to 85°C, 48-VQFN (7x7 mm).

Texas Instruments LM3S808-IGZ50-C2T datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

LM3S808-IGZ50-C2T specifications
ParameterValue
SeriesStellaris® ARM® Cortex®-M3S 800
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))3V ~ 3.6V
Operating temperature-40°C~85°C(TA)
Speed50MHz
PackageTape & Reel (TR)
RAM size8K x 8
Core size32-Bit Single-Core
PeripheralsBrown-out Detect/Reset, POR, PWM, WDT
ConnectivityI²C, Microwire, SPI, SSI, UART/USART
Number of i (O)28
Core processorARM® Cortex®-M3
Case48-VFQFN Exposed Pad
Data convertersA/D 8x10b
Program memory size64KB (64K x 8)

Product details

The LM3S808-IGZ50-C2T is a 32-bit ARM Cortex-M3 microcontroller from the Stellaris 800 series, clocked at 50 MHz. It carries 64 KB of Flash and 8 KB of RAM, with 28 I/O lines and an 8-channel 10-bit ADC.

The core runs at 50 MHz. This speed handles a single control loop or a Modbus RTU master without bit-banging.

Memory sizing for firmware and data

64 KB Flash and 8 KB RAM place this MCU in the small-to-medium application tier. The Flash can hold a modest bootloader plus application code for a sensor hub or a simple HMI. The 8 KB RAM limits buffering — a full Ethernet stack or large data-logging buffer will not fit.

Industrial temperature and on-chip peripherals

The 8-channel 10-bit ADC reads potentiometers or thermistors with external scaling resistors.

Frequently asked questions

What is the replacement for LM3S808-IGZ50-C2T?

There is no official TI-published replacement for this exact order code. For a pin-compatible alternative within the Stellaris family, check the LM3S800-series datasheet for 48-VQFN variants with similar memory and peripheral sets. The part is currently sourced through surplus channels.

Where to buy LM3S808-IGZ50-C2T available via RFQ confirmation?

The LM3S808-IGZ50-C2T is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time. Submit an RFQ for a current sourcing quote.

What is LM3S808-IGZ50-C2T's listed speed?

The core runs at 50 MHz. This is a mid-range Cortex-M3 speed, suitable for single control loops and serial protocol handling but not for heavy DSP or floating-point workloads.

What is the cross reference for LM3S808-IGZ50-C2T?

No official cross-reference is published. The base product number is LM3S808. For a second source, check the Stellaris family for 48-VQFN parts with 64 KB Flash and 8 KB RAM — but verify pin compatibility against the datasheet.