Skip to main content
Texas Instruments LM3S817-IQN50-C2T — Microcontrollers & Processors (MCU / MPU / DSP)
Texas Instruments

Texas Instruments LM3S817-IQN50-C2T ARM Cortex-M3 MCU, 50 MHz

MPNLM3S817-IQN50-C2T
NRND

Texas Instruments Stellaris LM3S817-IQN50-C2T, ARM Cortex-M3 32-bit MCU, 50 MHz, 64KB Flash, 8KB RAM, 30 GPIO, 6x10-bit ADC, SPI/SSI/UART/USART, 3.0-3.6V, -40°C to 85°C, 48-LQFP (7x7 mm), Tape & Reel.

$7.7660Ref. price · indicative, final on quote
LM3S817-IQN50-C2T datasheet
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

LM3S817-IQN50-C2T Technical Specifications
ParameterValue
SeriesStellaris® ARM® Cortex®-M3S 800
Mounting typeSurface 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
ConnectivityMicrowire, SPI, SSI, UART/USART
Number of i (O)30
Core processorARM® Cortex®-M3
Case48-LQFP
Data convertersA/D 6x10b
Program memory size64KB (64K x 8)

Product details

What the LM3S817-IQN50-C2T is and where it fits

The Texas Instruments LM3S817-IQN50-C2T is a 32-bit ARM Cortex-M3 microcontroller from the Stellaris family, clocked at 50 MHz with 64 KB of Flash program memory and 8 KB of RAM. It provides 30 general-purpose I/O lines and a 6-channel 10-bit analog-to-digital converter, along with serial interfaces including SPI, SSI, UART/USART, and Microwire. The device operates from a 3.0 V to 3.6 V supply over the industrial temperature range of -40°C to 85°C, and is housed in a 48-pin LQFP package measuring 7 mm by 7 mm. Typical applications include industrial control, sensor interfacing, motor drive logic, and embedded protocol bridging where a moderate-performance Cortex-M3 core with a compact footprint is required.

Memory sizing — 64 KB Flash / 8 KB RAM

With 64 KB of Flash and 8 KB of RAM, the LM3S817 fits firmware images for bootloaders, communication stacks, and moderate application code.

Industrial temperature grade and package

Rated for -40°C to 85°C operation, this MCU is suitable for factory-floor enclosures, outdoor telecom cabinets, and under-hood automotive auxiliary modules.

Sourcing this part

Frequently asked questions

Is LM3S817-IQN50-C2T obsolete or EOL?

The LM3S817-IQN50-C2T is NRND (Not Recommended for New Designs), meaning TI no longer recommends it for new projects, but it is not fully discontinued. Existing stock is available through independent distributors.

What is the replacement for LM3S817-IQN50-C2T?

TI's recommended successor family for the Stellaris LM3S800 series is the TM4C123 series (Cortex-M4F). Check pin compatibility and peripheral mapping before substituting, as the TM4C parts have different ADC and serial interface configurations.

Where can I buy LM3S817-IQN50-C2T?

This part is available to order through independent distribution. Submit an RFQ for current pricing and availability — stock is confirmed at quote time.

What is LM3S817-IQN50-C2T's listed speed?

The LM3S817-IQN50-C2T is rated for a 50 MHz core clock, delivering approximately 62.5 DMIPS on the Cortex-M3 pipeline.

Is LM3S817-IQN50-C2T compatible with LM3S811?

The LM3S811 is a sibling in the same Stellaris family with identical 64 KB Flash and 8 KB RAM, but it has a different peripheral set (e.g., fewer ADC channels). Verify the exact pinout and peripheral list before assuming drop-in compatibility.