| Part Numbers | Manufacturer Name | Datasheet | Core Processor | Core Size | Speed | Connectivity | RAM Size | Number of I/O | Program Memory Size | Program Memory Type | EEPROM Size | Voltage - Supply (Vcc/Vdd) | Data Converters | Oscillator Type | Operating Temperature | Package / Case |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| C8051F542-IM | SILICON LABORATORIES INC | 8051 | 8-Bit | 50MHz | SMBus (2-Wire/I²C), LIN, SPI, UART/USART | 18 | 16KB (16K x 8) | FLASH | - | 1.25K x 8 | 1.8 V ~ 5.25 V | A/D 18x12b | Internal | -40°C ~ 125°C | 24-WFQFN Exposed Pad | |
| AT89C5130A-PUTUM | ATMEL CORP | 80C51 | 8-Bit | 48MHz | I²C, SPI, UART/USART, USB | 18 | 16KB (16K x 8) | FLASH | 4K x 8 | 1.25K x 8 | 2.7 V ~ 5.5 V | - | Internal | -40°C ~ 85°C | 32-VQFN Exposed Pad | |
| AT89C5131A-TISUL | ATMEL CORP | 80C51 | 8-Bit | 48MHz | I²C, SPI, UART/USART, USB | 18 | 32KB (32K x 8) | FLASH | 4K x 8 | 1.25K x 8 | 3 V ~ 3.6 V | - | Internal | -40°C ~ 85°C | 28-SOIC (0.295, 7.50mm Width) | |
| AT89C5131A-PUTUM | ATMEL CORP | 80C51 | 8-Bit | 48MHz | I²C, SPI, UART/USART, USB | 18 | 32KB (32K x 8) | FLASH | 4K x 8 | 1.25K x 8 | 2.7 V ~ 5.5 V | - | Internal | -40°C ~ 85°C | 32-VQFN Exposed Pad | |
| AT89C5131-TISIL | ATMEL CORP | 80C51 | 8-Bit | 48MHz | I²C, SPI, UART/USART, USB | 18 | 32KB (32K x 8) | FLASH | 4K x 8 | 1.25K x 8 | 3 V ~ 3.6 V | - | Internal | -40°C ~ 85°C | 28-SOIC (0.295, 7.50mm Width) | |
| AT89C5131A-PUTIM | ATMEL CORP | 80C51 | 8-Bit | 48MHz | I²C, SPI, UART/USART, USB | 18 | 32KB (32K x 8) | FLASH | 4K x 8 | 1.25K x 8 | 2.7 V ~ 5.5 V | - | Internal | -40°C ~ 85°C | 32-VQFN Exposed Pad | |
| AT89C5131A-TISIL | ATMEL CORP | 80C51 | 8-Bit | 48MHz | I²C, SPI, UART/USART, USB | 18 | 32KB (32K x 8) | FLASH | 4K x 8 | 1.25K x 8 | 3 V ~ 3.6 V | - | Internal | -40°C ~ 85°C | 28-SOIC (0.295, 7.50mm Width) | |
| C8051F547-IMR | SILICON LABORATORIES INC | 8051 | 8-Bit | 50MHz | SMBus (2-Wire/I²C), SPI, UART/USART | 18 | 8KB (8K x 8) | FLASH | - | 1.25K x 8 | 1.8 V ~ 5.25 V | A/D 18x12b | Internal | -40°C ~ 125°C | 24-WFQFN Exposed Pad | |
| C8051F546-IMR | SILICON LABORATORIES INC | 8051 | 8-Bit | 50MHz | SMBus (2-Wire/I²C), LIN, SPI, UART/USART | 18 | 8KB (8K x 8) | FLASH | - | 1.25K x 8 | 1.8 V ~ 5.25 V | A/D 18x12b | Internal | -40°C ~ 125°C | 24-WFQFN Exposed Pad | |
| C8051F543-IMR | SILICON LABORATORIES INC | 8051 | 8-Bit | 50MHz | SMBus (2-Wire/I²C), SPI, UART/USART | 18 | 16KB (16K x 8) | FLASH | - | 1.25K x 8 | 1.8 V ~ 5.25 V | A/D 18x12b | Internal | -40°C ~ 125°C | 24-WFQFN Exposed Pad |
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