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| Manufacturer | Silicon Labs |
|---|---|
| Series | Universal Bee |
| Package | - |
| Standard Package | 250 |
| Product Status | Active |
| Core Processor | CIP-51 8051 |
| Core Size | 8-Bit |
| Speed | 48MHz |
| Connectivity | EBI/EMI | I²C | SMBus | SPI | UART/USART | USB |
| Peripherals | Brown-out Detect/Reset | POR | PWM | WDT |
| Number of I/O | 40 |
| Program Memory Size | 64KB (64K x 8) |
| Program Memory Type | FLASH |
| EEPROM Size | - |
| RAM Size | 4.25K x 8 |
| Voltage - Supply (Vcc/Vdd) | 2.65V ~ 3.6V |
| Data Converters | A/D 32x10b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
| Package / Case | 48-TQFP |
| Supplier Device Package | 48-TQFP (7x7) |
| Base Product Number | EFM8UB20 |
| RoHS Status | |
|---|---|
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
| REACH Status | |
| ECCN | 3A991A2 |
| HTSUS | 8542.31.0001 |