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| Part Number | C8051F821-GSR | C8051F823-GSR | C8051F829-GSR | C8051F822-GSR | C8051F826-GSR | C8051F828-GSR | C8051F831-GSR | C8051F825-GSR | C8051F827-GSR | C8051F824-GSR | C8051F811-GSR | C8051F821-GS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs | 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 | Not For New Designs | Not For New Designs | Not For New Designs | Not For New Designs | Not For New Designs |
| Core Processor | 8051 | 8051 | 8051 | 8051 | 8051 | 8051 | 8051 | 8051 | 8051 | 8051 | 8051 | 8051 |
| Core Size | 8-Bit | 8-Bit | 8-Bit | 8-Bit | 8-Bit | 8-Bit | 8-Bit | 8-Bit | 8-Bit | 8-Bit | 8-Bit | 8-Bit |
| Speed | 25MHz | 25MHz | 25MHz | 25MHz | 25MHz | 25MHz | 25MHz | 25MHz | 25MHz | 25MHz | 25MHz | 25MHz |
| Connectivity | SMBus (2-Wire/I²C), SPI, UART/USART | SMBus (2-Wire/I²C), SPI, UART/USART | SMBus (2-Wire/I²C), SPI, UART/USART | SMBus (2-Wire/I²C), SPI, UART/USART | SMBus (2-Wire/I²C), SPI, UART/USART | SMBus (2-Wire/I²C), SPI, UART/USART | SMBus (2-Wire/I²C), SPI, UART/USART | SMBus (2-Wire/I²C), SPI, UART/USART | SMBus (2-Wire/I²C), SPI, UART/USART | SMBus (2-Wire/I²C), SPI, UART/USART | SMBus (2-Wire/I²C), SPI, UART/USART | SMBus (2-Wire/I²C), SPI, UART/USART |
| Peripherals | Cap Sense, POR, PWM, WDT | POR, PWM, WDT | POR, PWM, WDT | Cap Sense, POR, PWM, WDT | POR, PWM, Temp Sensor, WDT | Cap Sense, POR, PWM, WDT | Cap Sense, POR, PWM, Temp Sensor, WDT | Cap Sense, POR, PWM, Temp Sensor, WDT | Cap Sense, POR, PWM, WDT | Cap Sense, POR, PWM, Temp Sensor, WDT | POR, PWM, WDT | Cap Sense, POR, PWM, WDT |
| Number of I/O | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 |
| Program Memory Size | 8KB (8K x 8) | 8KB (8K x 8) | 8KB (8K x 8) | 8KB (8K x 8) | 8KB (8K x 8) | 8KB (8K x 8) | 4KB (4K x 8) | 8KB (8K x 8) | 8KB (8K x 8) | 8KB (8K x 8) | 16KB (16K x 8) | 8KB (8K x 8) |
| Program Memory Type | Flash | Flash | Flash | Flash | Flash | Flash | Flash | Flash | Flash | Flash | Flash | Flash |
| EEPROM Size | - | - | - | - | - | - | - | - | - | - | - | - |
| RAM Size | 512 x 8 | 512 x 8 | 256 x 8 | 512 x 8 | 256 x 8 | 256 x 8 | 256 x 8 | 256 x 8 | 256 x 8 | 256 x 8 | 512 x 8 | 512 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 | 1.8V ~ 3.6V | 1.8V ~ 3.6V | 1.8V ~ 3.6V | 1.8V ~ 3.6V | 1.8V ~ 3.6V |
| Data Converters | - | - | - | - | A/D 12x10b | - | A/D 12x10b | A/D 12x10b | - | A/D 12x10b | - | - |
| Oscillator Type | Internal | Internal | Internal | Internal | Internal | 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) | -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 | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 16-SOIC (0.154", 3.90mm Width) | 16-SOIC (0.154", 3.90mm Width) | 16-SOIC (0.154", 3.90mm Width) | 16-SOIC (0.154", 3.90mm Width) | 16-SOIC (0.154", 3.90mm Width) | 16-SOIC (0.154", 3.90mm Width) | 16-SOIC (0.154", 3.90mm Width) | 16-SOIC (0.154", 3.90mm Width) | 16-SOIC (0.154", 3.90mm Width) | 16-SOIC (0.154", 3.90mm Width) | 16-SOIC (0.154", 3.90mm Width) | 16-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 16-SOIC | 16-SOIC | 16-SOIC | 16-SOIC | 16-SOIC | 16-SOIC | 16-SOIC | 16-SOIC | 16-SOIC | 16-SOIC | 16-SOIC | 16-SOIC |
