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Texas Instruments LM3S9D92-IBZ80-A1 — Microcontrollers & Processors (MCU / MPU / DSP)

Texas Instruments LM3S9D92-IBZ80-A1 Stellaris ARM Cortex-M3 MCU, 80 MHz

MPNLM3S9D92-IBZ80-A1
Obsolete

Texas Instruments Stellaris LM3S9D92-IBZ80-A1, ARM Cortex-M3 core at 80 MHz, 512 KB Flash, 96 KB RAM, 16x12b ADC, 65 I/O, Ethernet + USB OTG + CAN, 108-LFBGA tray, -40°C to 85°C, 1.235 V–1.365 V core.

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

Specifications

LM3S9D92-IBZ80-A1 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-A1: Stellaris ARM Cortex-M3 MCU running at 80 MHz with 512 KB Flash and 96 KB RAM. Includes Ethernet MAC+PHY, USB OTG, CAN, serial interfaces, 16-channel 12-bit ADC, and 65 GPIOs in a 108-ball BGA (10x10 mm).

The 80 MHz core clock gives this part enough headroom to run an Ethernet TCP/IP stack (lwIP or similar) alongside a real-time control task and a USB OTG host. The 96 KB RAM is tight for a full web server buffer, but adequate for a Modbus TCP gateway or a data logger with a small frame buffer. If your firmware needs more than 512 KB Flash, you are looking at a different density tier — this part is the top of the Stellaris 9000 series in its BGA footprint.

Texas Instruments has marked the LM3S9D92-IBZ80-A1 as obsolete. No factory last-time-buy window remains; the only channel is surplus and independent distribution.

Frequently asked questions

What is the closest pin-compatible alternative to LM3S9D92-IBZ80-A1?

There is no official pin-compatible drop-in from TI. The Stellaris 9000 series is end-of-life; the Tiva C series uses a different package and pinout. For a BOM freeze, secure stock now or plan a PCB redesign.

What is LM3S9D92-IBZ80-A1's listed speed?

80 MHz — the ARM Cortex-M3 core runs at that clock, with a separate 1.235 V–1.365 V core supply.