The LM3S5C51-IQC80-A2 is obsolete.
Package and footprint — 100-LQFP (14x14 mm)
The device is supplied in a 100-lead LQFP with a 14x14 mm body (supplier device package 100-LQFP (14x14)). It is a surface-mount package. The part ships in trays.
LM3S5C51-IQC80-A2 Stellaris ARM Cortex-M3 MCU, 80 MHz
MPNLM3S5C51-IQC80-A2
Obsolete
Texas Instruments Stellaris ARM Cortex-M3S 5000 series LM3S5C51-IQC80-A2, 32-bit single-core MCU, 80 MHz, 512 KB Flash, 64 KB SRAM, USB OTG, CAN, 67 I/O, 100-LQFP, -40°C to 85°C.
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Series | Stellaris® ARM® Cortex®-M3S 5000 |
| Mounting | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 3V ~ 3.6V |
| Operating temperature | -40°C~85°C(TA) |
| Speed | 80MHz |
| Package | Tray |
| RAM size | 64K x 8 |
| Core size | 32-Bit Single-Core |
| Peripherals | Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT |
| Connectivity | CANbus, I²C, IrDA, LINbus, Microwire, QEI, SPI, SSI, UART/USART, USB OTG |
| Number of i (O) | 67 |
| Core processor | ARM® Cortex®-M3 |
| Case | 100-LQFP |
| Data converters | A/D 16x12b |
| Program memory size | 512KB (512K x 8) |
Product details
Frequently asked questions
What is the direct replacement or equivalent for LM3S5C51-IQC80-A2?
A pin-compatible alternative within the Stellaris family or a migration to a current TI Cortex-M series (such as the TM4C family) should be evaluated by the design team based on the specific peripheral and memory requirements.