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| Part Number | LM3S2939-EQC50-A2T | LM3S2939-IQC50-A2T | LM3S2739-EQC50-A2T | LM3S2939-EQC50-A2 |
|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Status | Obsolete | Not For New Designs | Obsolete | Obsolete |
| Core Processor | ARM® Cortex®-M3 | ARM® Cortex®-M3 | ARM® Cortex®-M3 | ARM® Cortex®-M3 |
| Core Size | 32-Bit Single-Core | 32-Bit Single-Core | 32-Bit Single-Core | 32-Bit Single-Core |
| Speed | 50MHz | 50MHz | 50MHz | 50MHz |
| Connectivity | CANbus, I²C, IrDA, Microwire, QEI, SPI, SSI, UART/USART | CANbus, I²C, IrDA, Microwire, QEI, SPI, SSI, UART/USART | CANbus, I²C, IrDA, Microwire, QEI, SPI, SSI, UART/USART | CANbus, I²C, IrDA, Microwire, QEI, SPI, SSI, UART/USART |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT | Brown-out Detect/Reset, POR, PWM, WDT | Brown-out Detect/Reset, POR, PWM, WDT | Brown-out Detect/Reset, POR, PWM, WDT |
| Number of I/O | 57 | 57 | 56 | 57 |
| Program Memory Size | 256KB (256K x 8) | 256KB (256K x 8) | 128KB (128K x 8) | 256KB (256K x 8) |
| Program Memory Type | Flash | Flash | Flash | Flash |
| EEPROM Size | - | - | - | - |
| RAM Size | 64K x 8 | 64K x 8 | 64K x 8 | 64K x 8 |
| Voltage - Supply (Vcc/Vdd) | 2.25V ~ 2.75V | 2.25V ~ 2.75V | 2.25V ~ 2.75V | 2.25V ~ 2.75V |
| Data Converters | A/D 3x10b | A/D 3x10b | A/D 4x10b | A/D 3x10b |
| Oscillator Type | Internal | Internal | Internal | Internal |
| Operating Temperature | -40°C ~ 105°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 105°C (TA) | -40°C ~ 105°C (TA) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 100-LQFP | 100-LQFP | 100-LQFP | 100-LQFP |
| Supplier Device Package | 100-LQFP (14x14) | 100-LQFP (14x14) | 100-LQFP (14x14) | 100-LQFP (14x14) |
