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Texas Instruments LM3S2U93-IQC80-A2 — Microcontrollers & Processors (MCU / MPU / DSP)

LM3S2U93-IQC80-A2 Stellaris ARM Cortex-M3 MCU, 80MHz

MPNLM3S2U93-IQC80-A2
Obsolete

Texas Instruments Stellaris® ARM® Cortex®-M3S 2000 series LM3S2U93-IQC80-A2, 32-Bit Single-Core MCU, 80MHz, 384KB Flash, 96K x 8 RAM, 67 I/O, CANbus/EBI/EMI/I²C/SPI/UART, 100-LQFP, -40°C~85°C.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM3S2U93-IQC80-A2 specifications
ParameterValue
SeriesStellaris® ARM® Cortex®-M3S 2000
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.235V ~ 1.365V
Operating temperature-40°C~85°C(TA)
Speed80MHz
PackageTray
RAM size96K x 8
Core size32-Bit Single-Core
PeripheralsBrown-out Detect/Reset, DMA, I²S, POR, PWM, WDT
ConnectivityCANbus, EBI/EMI, I²C, IrDA, Microwire, QEI, SPI, SSI, UART/USART
Number of i (O)67
Core processorARM® Cortex®-M3
Case100-LQFP
Data convertersA/D 16x10b
Program memory size384KB (384K x 8)

Product details

80 MHz Cortex-M3 with 384 KB Flash — what the memory map means

Peripheral set — CAN, EBI/EMI, and serial interfaces

The EBI/EMI port lets you attach parallel SRAM, Flash, or an FPGA without bit-banging GPIO, which is useful for data-logging or display-frame buffers. The 16-channel 10-bit ADC covers analog inputs like thermocouple or current-sense signals, and the I²S interface handles digital audio if the application needs it.

Industrial temperature grade — deployment environment

The 1.235 V to 1.365 V core supply is tight — the board's regulator tolerance needs to stay inside that window, especially at the temperature extremes where the LDO reference drifts.

The Stellaris line was acquired and absorbed into the TI MCU portfolio; the closest functional match today would be a Tiva-C series part with similar peripheral mix and pin count, but those are not pin-to-pin compatible — the board layout would need a re-spin.

Package and mounting — 100-LQFP

Supplied in a 100-LQFP (14x14 mm) surface-mount package.

Frequently asked questions

What is the replacement for LM3S2U93-IQC80-A2?

Buyers need to find a compatible alternative to avoid redesign.

Is LM3S2U93-IQC80-A2 obsolete?

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Where can I buy LM3S2U93-IQC80-A2?

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What are the specifications of LM3S2U93-IQC80-A2?

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Does LM3S2U93-IQC80-A2 have a RoHS compliant version?

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