Skip to main content
Log in
Texas Instruments LM3S9D92-IBZ80-A2 — Microcontrollers & Processors (MCU / MPU / DSP)

LM3S9D92-IBZ80-A2 Stellaris ARM Cortex-M3 MCU, 80 MHz, 512 KB Flash

MPNLM3S9D92-IBZ80-A2
Obsolete

Texas Instruments Stellaris® ARM® Cortex®-M3S 9000 series MCU, LM3S9D92-IBZ80-A2, 32-bit single-core at 80 MHz, 512 KB Flash, 96 KB RAM, 65 I/O, CAN, Ethernet, USB OTG, 108-BGA (10x10 mm), -40°C to 85°C.

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

Specifications

LM3S9D92-IBZ80-A2 specifications
ParameterValue
SeriesStellaris® ARM® Cortex®-M3S 9000
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, Ethernet, I²C, IrDA, LINbus, Microwire, QEI, SPI, SSI, UART/USART, USB OTG
Number of i (O)65
Core processorARM® Cortex®-M3
Case108-LFBGA
Data convertersA/D 16x12b
Program memory size512KB (512K x 8)

Product details

The LM3S9D92-IBZ80-A2: 32-bit ARM Cortex-M3 MCU from the Stellaris 9000 series, clocked at 80 MHz with 512 KB Flash and 96 KB SRAM. Interfaces include CAN, Ethernet, USB OTG, UART, SPI, I²C, and 16-channel 12-bit ADC.

80 MHz and the connectivity stack

At 80 MHz the Cortex-M3 has enough headroom to run a lightweight TCP/IP stack (lwIP or similar) alongside a CANopen master and a Modbus RTU slave on the UARTs. The 96 KB SRAM is the tight spot — if you're buffering large Ethernet frames or running a USB host stack, budget that RAM early. The 512 KB Flash holds a full firmware image with room for a bootloader and a small file system.

Frequently asked questions

What is the closest pin-compatible alternative to LM3S9D92-IBZ80-A2?

No official pin-compatible successor is listed. Check the Stellaris or TM4C series from Texas Instruments for a similar 108-BGA part with comparable peripherals; verify the core supply voltage and pinout against your PCB layout before ordering.

What is the speed rating on LM3S9D92-IBZ80-A2?

The core runs at 80 MHz.