| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AT89C1051-12SC | ATMEL CORP | 8051 | 8-Bit | 12MHz | - | 15 | 1KB (1K x 8) | FLASH | - | 64 x 8 | 2.7 V ~ 6 V | - | Internal | 0°C ~ 70°C | 20-SOIC (0.295, 7.50mm Width) | |
| AT89C1051-12SI | ATMEL CORP | 8051 | 8-Bit | 12MHz | - | 15 | 1KB (1K x 8) | FLASH | - | 64 x 8 | 2.7 V ~ 6 V | - | Internal | -40°C ~ 85°C | 20-SOIC (0.295, 7.50mm Width) | |
| AT89C1051-24SC | ATMEL CORP | 8051 | 8-Bit | 24MHz | - | 15 | 1KB (1K x 8) | FLASH | - | 64 x 8 | 4 V ~ 6 V | - | Internal | 0°C ~ 70°C | 20-SOIC (0.295, 7.50mm Width) | |
| AT89C1051-24SI | ATMEL CORP | 8051 | 8-Bit | 24MHz | - | 15 | 1KB (1K x 8) | FLASH | - | 64 x 8 | 4 V ~ 6 V | - | Internal | -40°C ~ 85°C | 20-SOIC (0.295, 7.50mm Width) | |
| AT89C1051U-12SI | ATMEL CORP | 8051 | 8-Bit | 12MHz | UART/USART | 15 | 1KB (1K x 8) | FLASH | - | 64 x 8 | 2.7 V ~ 6 V | - | Internal | -40°C ~ 85°C | 20-SOIC (0.295, 7.50mm Width) | |
| W79E821ASG | NUVOTON TECHNOLOGY CORP | 8051 | 8-Bit | 20MHz | I²C, UART/USART | 18 | 1KB (1K x 8) | FLASH | - | 128 x 8 | 2.7 V ~ 5.5 V | A/D 4x10b | Internal | -40°C ~ 85°C | 20-SOIC (0.295, 7.50mm Width) | |
| COP8SAA720M9 | TEXAS INSTRUMENTS INC | COP8 | 8-Bit | 10MHz | Microwire/Plus (SPI) | 16 | 1KB (1K x 8) | OTP | - | 64 x 8 | 2.7 V ~ 5.5 V | - | Internal | 0°C ~ 70°C | 20-SOIC (0.295, 7.50mm Width) | |
| COP8SAA720M7 | TEXAS INSTRUMENTS INC | COP8 | 8-Bit | 10MHz | Microwire/Plus (SPI) | 16 | 1KB (1K x 8) | OTP | - | 64 x 8 | 2.7 V ~ 5.5 V | - | Internal | -40°C ~ 125°C | 20-SOIC (0.295, 7.50mm Width) | |
| COP8SAA720M8 | TEXAS INSTRUMENTS INC | COP8 | 8-Bit | 10MHz | Microwire/Plus (SPI) | 16 | 1KB (1K x 8) | OTP | - | 64 x 8 | 2.7 V ~ 5.5 V | - | Internal | -40°C ~ 85°C | 20-SOIC (0.295, 7.50mm Width) | |
| Z86E0412HSC1866 | ZILOG INC | Z8 | 8-Bit | 12MHz | - | 14 | 1KB (1K x 8) | OTP | - | 125 x 8 | 4.5 V ~ 5.5 V | - | Internal | 0°C ~ 70°C | 20-SOIC (0.295, 7.50mm Width) |
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