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| Part Number | SIM3U144-B-GMR | SIM3U146-B-GMR | SIM3U154-B-GMR | SIM3U164-B-GMR | SIM3C144-B-GMR | SIM3U134-B-GMR | SIM3U144-B-GM |
|---|---|---|---|---|---|---|---|
| Manufacturer | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs |
| Product Status | Not For New Designs | Not For New Designs | Not For New Designs | Not For New Designs | Not For New Designs | Not For New Designs | Not For New Designs |
| Core Processor | ARM® Cortex®-M3 | ARM® Cortex®-M3 | ARM® Cortex®-M3 | 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 | 32-Bit Single-Core | 32-Bit Single-Core | 32-Bit Single-Core |
| Speed | 80MHz | 80MHz | 80MHz | 80MHz | 80MHz | 80MHz | 80MHz |
| Connectivity | I²C, IrDA, SmartCard, SPI, UART/USART, USB | EBI/EMI, I²C, IrDA, SmartCard, SPI, UART/USART, USB | I²C, IrDA, SmartCard, SPI, UART/USART, USB | I²C, IrDA, SmartCard, SPI, UART/USART, USB | I²C, IrDA, SmartCard, SPI, UART/USART | I²C, IrDA, SmartCard, SPI, UART/USART, USB | I²C, IrDA, SmartCard, SPI, UART/USART, USB |
| 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 | 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 | Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT |
| Number of I/O | 28 | 50 | 28 | 28 | 28 | 28 | 28 |
| Program Memory Size | 64KB (64K x 8) | 64KB (64K x 8) | 128KB (128K x 8) | 256KB (256K x 8) | 64KB (64K x 8) | 32KB (32K x 8) | 64KB (64K x 8) |
| Program Memory Type | Flash | Flash | Flash | Flash | Flash | Flash | Flash |
| EEPROM Size | - | - | - | - | - | - | - |
| RAM Size | 16K x 8 | 16K x 8 | 32K x 8 | 32K x 8 | 16K x 8 | 8K x 8 | 16K x 8 |
| Voltage - Supply (Vcc/Vdd) | 1.8V ~ 3.6V | 1.8V ~ 3.6V | 1.8V ~ 3.6V | 1.8V ~ 3.6V | 1.8V ~ 3.6V | 1.8V ~ 3.6V | 1.8V ~ 3.6V |
| Data Converters | A/D 18x12b; D/A 2x10b | A/D 28x12b; D/A 2x10b | A/D 18x12b; D/A 2x10b | A/D 18x12b; D/A 2x10b | A/D 18x12b; D/A 2x10b | A/D 18x12b; D/A 2x10b | A/D 18x12b; D/A 2x10b |
| Oscillator Type | Internal | Internal | Internal | Internal | Internal | Internal | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 40-VFQFN Exposed Pad | 64-VFQFN Exposed Pad | 40-VFQFN Exposed Pad | 40-VFQFN Exposed Pad | 40-VFQFN Exposed Pad | 40-VFQFN Exposed Pad | 40-VFQFN Exposed Pad |
| Supplier Device Package | 40-QFN (6x6) | 64-QFN (9x9) | 40-QFN (6x6) | 40-QFN (6x6) | 40-QFN (6x6) | 40-QFN (6x6) | 40-QFN (6x6) |
