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Texas Instruments LM3S2U93-IQC80-A1T — Microcontrollers & Processors (MCU / MPU / DSP)

LM3S2U93-IQC80-A1T Stellaris ARM Cortex-M3 MCU, 80 MHz, 384 KB Flash

MPNLM3S2U93-IQC80-A1T
Obsolete

Texas Instruments Stellaris ARM Cortex-M3S 2000 series MCU, LM3S2U93-IQC80-A1T, 80 MHz, 384 KB Flash, 96 KB RAM, 67 I/O, 100-LQFP, -40°C to 85°C.

Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM3S2U93-IQC80-A1T 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
PackageTape & Reel (TR)
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

The LM3S2U93-IQC80-A1T is a 32-bit ARM Cortex-M3 microcontroller from the Stellaris series, running at 80 MHz with 384 KB of Flash and 96 KB of RAM. It includes CANbus, I²C, SPI, UART, SSI, a 16-channel 10-bit ADC, PWM, and DMA.

Peripheral set and integration note

The 67 GPIOs are enough to drive a small display, read a keypad, and talk to a CAN transceiver simultaneously. The 16-channel 10-bit ADC covers analog inputs like potentiometers or current-sense resistors without an external mux. Keep the 1.235 V to 1.365 V core supply clean; a local LDO close to the Vcc pins avoids noise coupling into the ADC.

Frequently asked questions

What is the closest pin-compatible alternative to LM3S2U93-IQC80-A1T?

No official pin-compatible successor is listed in the record. Within the Stellaris Cortex-M3 family, other 100-LQFP parts share the same footprint but differ in memory and peripheral mix — verify the specific variant against your firmware and I/O requirements before substituting.

What is LM3S2U93-IQC80-A1T's listed speed?

The core runs at 80 MHz, which is the maximum clock for this Cortex-M3 device.