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Texas Instruments LM3S5651-IBZ80-C3 — Microcontrollers & Processors (MCU / MPU / DSP)

LM3S5651-IBZ80-C3 Stellaris ARM Cortex-M3 MCU, 80 MHz, 128 KB Flash, 108-BGA

MPNLM3S5651-IBZ80-C3
Obsolete

Texas Instruments Stellaris® ARM® Cortex®-M3S 5000 series LM3S5651-IBZ80-C3, 32-bit Single-Core MCU, 80 MHz, 128KB (128K x 8) FLASH, 32K x 8 RAM, 108-LFBGA, -40°C~85°C.

Texas Instruments LM3S5651-IBZ80-C3 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM3S5651-IBZ80-C3 specifications
ParameterValue
SeriesStellaris® ARM® Cortex®-M3S 5000
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.08V ~ 1.32V
Operating temperature-40°C~85°C(TA)
Speed80MHz
PackageTray
RAM size32K x 8
Core size32-Bit Single-Core
PeripheralsBrown-out Detect/Reset, DMA, I²S, POR, PWM, WDT
ConnectivityCANbus, I²C, IrDA, LINbus, Microwire, QEI, SPI, SSI, UART/USART, USB OTG
Number of i (O)67
Core processorARM® Cortex®-M3
Case108-LFBGA
Data convertersA/D 16x10b
Program memory size128KB (128K x 8)

Product details

The LM3S5651-IBZ80-C3: 32-bit ARM Cortex-M3 MCU, 80 MHz, 128 KB Flash, 32K x 8 SRAM. Peripherals include USB OTG, CAN, I²C, SPI, SSI, UART, LIN, IrDA, 16-channel 10-bit ADC, PWM, and QEI.

EOL — last-time-buy window closed

This part is obsolete. The last-time-buy window has passed; production ceased. Any available units are from surplus or broker channels.

The 80 MHz core on this Stellaris MCU handles real-time control loops and protocol stacks without external memory. The 128 KB Flash is enough for moderate firmware loads; the 32K x 8 SRAM supports a modest RTOS heap and data buffers. The USB OTG peripheral adds host/device flexibility for field-update or data-logging applications.

Frequently asked questions

Where to buy LM3S5651-IBZ80-C3?

We can source this obsolete part through our independent distribution network. Submit an RFQ for current availability and pricing.

What is the core of LM3S5651-IBZ80-C3?

The core is a 32-bit ARM Cortex-M3 running at 80 MHz.

What package is LM3S5651-IBZ80-C3?

It comes in a 108-LFBGA package (supplier device package 108-BGA, 10x10 mm).