TI LM3S9L71-IQC80-C3T — 80MHz ARM Cortex-M3 MCU, 128KB Flash, 100-LQFP
Texas Instruments Stellaris LM3S9L71-IQC80-C3T, 32-bit ARM Cortex-M3 single-core at 80MHz, 128KB Flash / 48KB SRAM, Ethernet + CANbus + USB OTG + UART/SPI/I²C, 72 I/O, 100-LQFP, Tape & Reel, -40°C to 85°C, 1.235V–1.365V core supply.
Specifications
| Parameter | Value |
|---|---|
| Series | Stellaris® ARM® Cortex®-M3S 9000 |
| Mounting | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 1.235V ~ 1.365V |
| Operating temperature | -40°C~85°C(TA) |
| Speed | 80MHz |
| Package | Tape & Reel (TR) |
| RAM size | 48K x 8 |
| Core size | 32-Bit Single-Core |
| Peripherals | Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT |
| Connectivity | CANbus, Ethernet, I²C, IrDA, LINbus, Microwire, QEI, SPI, SSI, UART/USART, USB OTG |
| Number of i (O) | 72 |
| Core processor | ARM® Cortex®-M3 |
| Case | 100-LQFP |
| Data converters | A/D 16x10b |
| Program memory size | 128KB (128K x 8) |
Frequently asked questions
What package and temperature grade does the IQC80 suffix specify?
The IQC80 suffix maps to the industrial temperature grade (-40°C to 85°C), the 100-LQFP-14 package (14×14mm), and tape-and-reel packaging. The core voltage is 1.235V to 1.365V.
Is there an official pin-compatible successor for the LM3S9L71?
No official pin-compatible successor is cited in this ledger. The Stellaris line was migrated to the TI Tiva C Series (TM4C family); a compatible Tiva part will require footprint verification and firmware register migration.
What are the key memory and connectivity specs?
128KB Flash and 48KB SRAM; core runs at 80MHz. Connectivity includes Ethernet MAC, CANbus, LINbus, USB OTG, UART/USART, SPI, I²C, and a 16-channel 10-bit ADC.