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| Part Number | EFM8UB20F32G-B-QFP48 | EFM8UB20F32G-B-QFP48R | EFM8UB20F32G-A-QFP48 |
|---|---|---|---|
| Manufacturer | Silicon Labs | Silicon Labs | Silicon Labs |
| Product Status | Active | Active | Discontinued at Digi-Key |
| Core Processor | CIP-51 8051 | CIP-51 8051 | CIP-51 8051 |
| Core Size | 8-Bit | 8-Bit | 8-Bit |
| Speed | 48MHz | 48MHz | 48MHz |
| Connectivity | EBI/EMI, I²C, SMBus, SPI, UART/USART, USB | EBI/EMI, I²C, SMBus, SPI, UART/USART, USB | EBI/EMI, I²C, SMBus, SPI, UART/USART, USB |
| Peripherals | 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 | 40 | 40 | 40 |
| Program Memory Size | 32KB (32K x 8) | 32KB (32K x 8) | 32KB (32K x 8) |
| Program Memory Type | Flash | Flash | Flash |
| EEPROM Size | - | - | - |
| RAM Size | 2.25K x 8 | 2.25K x 8 | 2.25K x 8 |
| Voltage - Supply (Vcc/Vdd) | 2.65V ~ 3.6V | 2.65V ~ 3.6V | 2.65V ~ 3.6V |
| Data Converters | A/D 32x10b | A/D 32x10b | A/D 32x10b |
| 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 | 48-TQFP | 48-TQFP | 48-TQFP |
| Supplier Device Package | 48-TQFP (7x7) | 48-TQFP (7x7) | 48-TQFP (7x7) |
