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| Part Number | LM3S9U81-IQC80-A2T | LM3S9D81-IQC80-A2T | LM3S9U81-IQC80-A1T |
|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Status | Obsolete | Obsolete | Obsolete |
| Core Processor | ARM® Cortex®-M3 | ARM® Cortex®-M3 | ARM® Cortex®-M3 |
| Core Size | 32-Bit Single-Core | 32-Bit Single-Core | 32-Bit Single-Core |
| Speed | 80MHz | 80MHz | 80MHz |
| Connectivity | CANbus, Ethernet, I²C, IrDA, LINbus, Microwire, SPI, SSI, UART/USART, USB OTG | CANbus, EBI/EMI, Ethernet, I²C, IrDA, LINbus, Microwire, SPI, SSI, UART/USART, USB OTG | CANbus, Ethernet, I²C, IrDA, LINbus, Microwire, SPI, SSI, UART/USART, USB OTG |
| Peripherals | Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT | Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT | Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT |
| Number of I/O | 65 | 65 | 65 |
| Program Memory Size | 384KB (384K x 8) | 512KB (512K x 8) | 384KB (384K x 8) |
| Program Memory Type | Flash | Flash | Flash |
| EEPROM Size | - | - | - |
| RAM Size | 96K x 8 | 96K x 8 | 96K x 8 |
| Voltage - Supply (Vcc/Vdd) | 1.235V ~ 1.365V | 1.235V ~ 1.365V | 1.235V ~ 1.365V |
| Data Converters | A/D 16x12b | A/D 16x12b | A/D 16x12b |
| Oscillator Type | Internal | Internal | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 100-LQFP | 100-LQFP | 100-LQFP |
| Supplier Device Package | 100-LQFP (14x14) | 100-LQFP (14x14) | 100-LQFP (14x14) |
