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Texas Instruments LM3S6100-IQC25-A2T — Microcontrollers & Processors (MCU / MPU / DSP)

LM3S6100-IQC25-A2T Stellaris ARM Cortex-M3 MCU, 25 MHz

MPNLM3S6100-IQC25-A2T
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Texas Instruments Stellaris ARM Cortex-M3S 6000 series LM3S6100-IQC25-A2T, 32-bit single-core MCU, 25 MHz, 64 KB Flash, 16 KB RAM, Ethernet MAC, 30 I/O, 100-LQFP (14x14), -40°C to 85°C, 2.25 V to 2.75 V supply, Tape & Reel.

$32.2314Ref. price · indicative, final on quote
Texas Instruments LM3S6100-IQC25-A2T datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

LM3S6100-IQC25-A2T specifications
ParameterValue
SeriesStellaris® ARM® Cortex®-M3S 6000
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))2.25V ~ 2.75V
Operating temperature-40°C~85°C(TA)
Speed25MHz
PackageTape & Reel (TR)
RAM size16K x 8
Core size32-Bit Single-Core
PeripheralsBrown-out Detect/Reset, POR, PWM, WDT
ConnectivityEthernet, IrDA, Microwire, SPI, SSI, UART/USART
Number of i (O)30
Core processorARM® Cortex®-M3
Case100-LQFP
Program memory size64KB (64K x 8)

Product details

25 MHz Cortex-M3 with Ethernet — a connected-control workhorse

The 64 KB Flash (64K x 8) and 16 KB SRAM (16K x 8) set a clear code-and-data ceiling. A lightweight TCP/IP stack plus a Modbus or BACnet application layer fits comfortably; a full embedded Linux or heavy GUI framework does not. For designs that need a deterministic control loop with Ethernet connectivity and moderate data logging, this memory partition is well matched to the 25 MHz core — no flash-wait-state surprises when the PLL is engaged.

This is a straight path for new-design qualification and multi-year production commitments.

Frequently asked questions

Does LM3S6100-IQC25-A2T have built-in Ethernet?

Yes, it integrates an Ethernet MAC controller as part of its connectivity block, alongside IrDA, Microwire, SPI, SSI, and UART/USART interfaces. An external PHY chip is still needed for the physical-layer connection to the RJ45 magnetics.

Can LM3S6100-IQC25-A2T replace LM3S6100-IQC25 on an existing board?

The base product number is LM3S6100, and the suffix -A2T indicates a specific revision and tape-and-reel packaging. Pin-compatibility across the LM3S6100 family is typical, but verify the exact silicon revision and errata against your firmware build — the -A2T suffix may carry fixes or timing changes that affect an existing software image.