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Texas Instruments LM3S9790-IQC80-C0 — Microcontrollers & Processors (MCU / MPU / DSP)

LM3S9790-IQC80-C0 Stellaris ARM Cortex-M3 MCU, 80 MHz, 128 KB Flash

MPNLM3S9790-IQC80-C0
Obsolete

Texas Instruments Stellaris® ARM® Cortex®-M3S 9000 series LM3S9790-IQC80-C0, 32-bit single-core MCU, 80MHz, 128KB Flash, 64K x 8 RAM, 60 I/O, CAN/Ethernet/USB OTG, 100-LQFP, -40°C to 85°C.

Texas Instruments LM3S9790-IQC80-C0 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM3S9790-IQC80-C0 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 size64K 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 size128KB (128K x 8)

Product details

The LM3S9790-IQC80-C0 is a Texas Instruments Stellaris ARM Cortex-M3 MCU from the 9000 series, built around a 32-bit single-core processor running at 80 MHz. The 16-channel 10-bit ADC and PWM timers suit it for motor-control or sensor-fusion nodes that also need network connectivity.

Connectivity set — gateway-class I/O

The EBI/EMI interface allows glueless connection to external SRAM, Flash, or an FPGA, which is useful if the on-chip 64 KB SRAM is tight for Ethernet buffering. The CAN controller and USB OTG mean this single MCU can act as a protocol gateway between a CAN-based machine bus and a USB-attached HMI or a factory Ethernet network.

Texas Instruments has marked the LM3S9790-IQC80-C0 as obsolete. If you are in the design phase, consider whether a currently active Cortex-M3 or M4 with similar CAN/Ethernet/USB peripherals could be a pin-compatible or software-portable alternative — but no such cross-reference is documented here.

Frequently asked questions

What is a suitable replacement or equivalent for LM3S9790-IQC80-C0?

No official successor or cross-reference part number is documented in the available records. For a currently active alternative, consider a TI Tiva-C or Stellaris-series ARM Cortex-M4 with similar CAN, Ethernet, and USB peripherals — but pin-compatibility and software porting effort would need to be verified against your specific layout and firmware.

Where can I buy LM3S9790-IQC80-C0 available via RFQ confirmation today?

We source this obsolete MCU through independent distribution and can quote it to order against an RFQ. Availability and current pricing are confirmed at the time of your quote request.

What are the key specifications of LM3S9790-IQC80-C0?

The core is a 32-bit ARM Cortex-M3 running at 80 MHz, with 128 KB Flash, 64K x 8 SRAM, 16-channel 10-bit ADC, 60 I/O, and connectivity including CAN, Ethernet, USB OTG, and multiple serial interfaces. It operates from -40°C to 85°C in a 100-LQFP package.