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Texas Instruments LM3S9U96-IBZ80-A2 — Microcontrollers & Processors (MCU / MPU / DSP)

LM3S9U96-IBZ80-A2 Stellaris ARM Cortex-M3 MCU, 80 MHz

MPNLM3S9U96-IBZ80-A2
Obsolete

Texas Instruments Stellaris® ARM® Cortex®-M3S 9000 series LM3S9U96-IBZ80-A2, 32-Bit Single-Core MCU, 80 MHz, 384KB FLASH, 96K x 8 RAM, Ethernet, USB OTG, CAN, 65 I/O, 108-LFBGA, -40°C to 85°C.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM3S9U96-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, 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 size384KB (384K x 8)

Product details

80 MHz Cortex-M3 with Ethernet and USB OTG — what this BGA part delivers

The LM3S9U96-IBZ80-A2: On-chip analog is handled by a 16-channel, 12-bit ADC. The 80 MHz core paired with the DMA controller means the CPU can sustain Ethernet and USB traffic without stalling on interrupt overhead — useful for a small industrial gateway or a motor-drive node that also serves a web interface. The 12-bit ADC with 16 channels covers multi-axis current sensing or temperature monitoring on a single chip.

108-ball BGA: footprint, rework, and the industrial temperature grade

The 108-LFBGA (10x10 mm body) requires a multi-layer PCB for routing the 65 I/O and connectivity signals. BGA rework needs a hot-air station and stencil.

Texas Instruments has designated the LM3S9U96-IBZ80-A2 as Obsolete. There is no LTB window remaining through the factory. Engineers planning a new design should evaluate current-generation Cortex-M4 or M7 parts with equivalent Ethernet + USB OTG + CAN peripherals from TI's Tiva C Series or a comparable vendor. Pin compatibility is not guaranteed — a board respin is expected.

Frequently asked questions

What does the 80 MHz core speed mean for this MCU?

The 80 MHz ARM Cortex-M3 core, combined with the DMA controller, can handle Ethernet and USB OTG traffic without saturating the CPU. It is sufficient for industrial protocol stacks (Modbus TCP, EtherNet/IP slave) and real-time control loops with sub-100 µs response targets.

What package does the LM3S9U96-IBZ80-A2 use?

It is supplied in a 108-ball LFBGA (10x10 mm body, 0.8 mm ball pitch), designated as 108-BGA. A multi-layer PCB and reflow soldering are required; hand-soldering is not practical.

Where can I buy the LM3S9U96-IBZ80-A2?

Submit an RFQ for current availability and pricing — no stock or lead-time figures are published.