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Texas Instruments LM3S9792-IQC80-C1 — Microcontrollers & Processors (MCU / MPU / DSP)

LM3S9792-IQC80-C1 Stellaris ARM Cortex-M3 MCU, 80MHz

MPNLM3S9792-IQC80-C1
Obsolete

Texas Instruments Stellaris® ARM® Cortex®-M3S 9000 series LM3S9792-IQC80-C1, 32-Bit Single-Core MCU, 80MHz, 128KB Flash, 64K x 8 RAM, 65 I/O, CANbus, Ethernet, USB OTG, -40°C~85°C, 100-LQFP.

Texas Instruments LM3S9792-IQC80-C1 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM3S9792-IQC80-C1 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, QEI, SPI, SSI, UART/USART, USB OTG
Number of i (O)65
Core processorARM® Cortex®-M3
Case100-LQFP
Data convertersA/D 16x10b
Program memory size128KB (128K x 8)

Product details

80 MHz Cortex-M3 with Ethernet and USB OTG — what this MCU brings

The LM3S9792-IQC80-C1: On-chip data conversion comes from a 16-channel 10-bit ADC. The 100-pin LQFP package (14x14 mm) exposes 65 GPIOs.

The core logic runs from a 1.235 V to 1.365 V supply rail, which means a separate 1.3 V regulator is needed alongside the 3.3 V I/O rail — a two-supply design that the board layout must accommodate.

128 KB Flash, 64 KB RAM — memory sizing for the application

With 128 KB of on-chip Flash and 64 KB of SRAM, this part fits firmware images for a TCP/IP stack with a small web server, a CANopen node, or a USB device class driver. The 64 KB RAM provides enough headroom for Ethernet packet buffers and a modest RTOS heap.

Frequently asked questions

Is LM3S9792-IQC80-C1 obsolete?

Determines if the part can be sourced new or if a replacement is needed, directly impacting procurement decisions.

What is the replacement for LM3S9792-IQC80-C1?

Essential for design continuity and sourcing alternative components when the original is no longer available.

Where can I buy LM3S9792-IQC80-C1?

Identifies authorized distributors or stockists to procure the part, critical for order fulfillment.

How much does LM3S9792-IQC80-C1 cost?

Cost is a key factor for budget planning and comparing with alternatives in sourcing decisions.

What is the datasheet for LM3S9792-IQC80-C1?

Technical specifications required for design validation and pin compatibility checks.

What is the pinout of LM3S9792-IQC80-C1?

Needed for designing the PCB layout and ensuring correct connections.