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Texas Instruments LM3S6420-EQC25-A2T — Microcontrollers & Processors (MCU / MPU / DSP)

Texas Instruments LM3S6420-EQC25-A2T ARM Cortex-M3 MCU

MPNLM3S6420-EQC25-A2T
Obsolete

Texas Instruments Stellaris ARM Cortex-M3S 6000 series MCU, LM3S6420-EQC25-A2T, 32-bit single-core at 25 MHz, 96KB Flash, 32K x 8 RAM, 100-LQFP, -40°C to 105°C.

Texas Instruments LM3S6420-EQC25-A2T datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM3S6420-EQC25-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~105°C(TA)
Speed25MHz
PackageTape & Reel (TR)
RAM size32K 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)46
Core processorARM® Cortex®-M3
Case100-LQFP
Program memory size96KB (96K x 8)

Product details

Cortex-M3 with Ethernet — what the peripheral set means for your board

The LM3S6420-EQC25-A2T: On-chip memory is 96 KB Flash and 32K x 8 RAM — enough for a lightweight TCP/IP stack or a control loop with moderate data logging. The connectivity block includes Ethernet, SPI, SSI, UART/USART, IrDA, and Microwire — so this part can serve as a networked sensor hub or a fieldbus gateway without an external PHY for the Ethernet MAC. The 46 GPIOs give room for parallel displays or a bank of opto-isolated inputs.

Obsolete — sourcing reality for the BOM line

Texas Instruments lists the LM3S6420-EQC25-A2T as Obsolete. Sourced per RFQ — quantities are lot-specific and confirmed at quote time. No stock-holding claim; each order is verified against the BOM quantity.

Frequently asked questions

Where can I buy LM3S6420-EQC25-A2T and how do I get a price?

The LM3S6420-EQC25-A2T is obsolete and sourced through independent distribution.