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Texas Instruments LM3S9B95-IQC80-C5T — Microcontrollers & Processors (MCU / MPU / DSP)

LM3S9B95-IQC80-C5T Stellaris ARM Cortex-M3 MCU, 80 MHz, 256 KB Flash

MPNLM3S9B95-IQC80-C5T
Obsolete

Texas Instruments Stellaris ARM Cortex-M3S 9000 series LM3S9B95-IQC80-C5T, 32-bit MCU, 80 MHz, 256 KB Flash, 96 KB RAM, 65 I/O, CAN/Ethernet/USB OTG, -40 to 85 °C, 100-LQFP.

Texas Instruments LM3S9B95-IQC80-C5T datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM3S9B95-IQC80-C5T 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
PackageTape & Reel (TR)
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
Case100-LQFP
Data convertersA/D 16x10b
Program memory size256KB (256K x 8)

Product details

The 96 KB RAM is enough for moderate TCP/IP buffers and a small RTOS heap; designs that need larger packet queues or display frame buffers should budget external SRAM via the EBI/EMI interface.

Texas Instruments has marked the LM3S9B95-IQC80-C5T as obsolete. No official successor order code is listed in the current lifecycle record. For new production, a pin-compatible drop-in is not guaranteed; the closest functional path is to evaluate a current TI Cortex-M4 or M7 part with Ethernet and CAN, but that requires a board respin and software migration.

Frequently asked questions

What is the equivalent replacement for LM3S9B95?

No official pin-compatible replacement is listed. A functional migration path leads to current TI Cortex-M4 or M7 parts with Ethernet and CAN (e.g., TM4C129 series), but this requires a PCB layout change and software port. For legacy BOM support, the LM3S9B95-IQC80-C5T is available on the surplus market.

What are the key specifications of LM3S9B95-IQC80-C5T?

It is a 32-bit ARM Cortex-M3 MCU running at 80 MHz, with 256 KB Flash, 96 KB RAM, 65 GPIOs, Ethernet MAC+PHY, CAN 2.0B, USB OTG, and a 16-channel 10-bit ADC, in a 100-LQFP package rated for -40 °C to 85 °C.