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Texas Instruments LM3S9B90-IQC80-B1 — Microcontrollers & Processors (MCU / MPU / DSP)

LM3S9B90-IQC80-B1 Stellaris ARM Cortex-M3 MCU, 80MHz, 256KB Flash

MPNLM3S9B90-IQC80-B1
Obsolete

Texas Instruments Stellaris ARM Cortex-M3S 9000 series 32-bit MCU, LM3S9B90-IQC80-, 80MHz, 256KB Flash, 96K x 8 RAM, 100-LQFP, -40°C to 85°C.

Texas Instruments LM3S9B90-IQC80-B1 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM3S9B90-IQC80-B1 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, SPI, SSI, UART/USART, USB OTG
Number of i (O)60
Core processorARM® Cortex®-M3
Case100-LQFP
Data convertersA/D 16x10b
Program memory size256KB (256K x 8)

Product details

The LM3S9B90-IQC80-B1: The 80 MHz Cortex-M3 delivers enough throughput to run a real-time control loop (e.g., a PID at 10 kHz) alongside protocol stacks for Ethernet and CAN without a separate communications processor. The 96 KB RAM gives headroom for moderate packet buffering and data logging.

Obsolete — sourcing reality for this part

This part is marked obsolete by the manufacturer. For a BOM line that requires this exact order code — for a legacy board in a machine tool, a panel retrofit, or a field repair — the only channel is surplus or independent distribution.

Frequently asked questions

What is the datasheet for LM3S9B90-IQC80-?

The datasheet covers the Stellaris LM3S9B90 in the 100-LQFP package with 80 MHz core, 256 KB Flash, 96 KB RAM, and the full peripheral set including Ethernet, CAN, and USB OTG.