| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AT80C51ID2-SLSIM | ATMEL CORP | 80C51 | 8-Bit | 20MHz | - | 32 | - | ROMless | - | 2K x 8 | - | - | Internal | -40°C ~ 85°C | 44-LCC (J-Lead) | |
| AT80C51ID2-SLSIL | ATMEL CORP | 80C51 | 8-Bit | 20MHz | - | 32 | - | ROMless | - | 2K x 8 | - | - | Internal | -40°C ~ 85°C | 44-LCC (J-Lead) | |
| AT80C51ID2-RLTIM | ATMEL CORP | 80C51 | 8-Bit | 20MHz | - | 32 | - | ROMless | - | 2K x 8 | - | - | Internal | -40°C ~ 85°C | 44-LQFP | |
| AT80C51ID2-RLTIL | ATMEL CORP | 80C51 | 8-Bit | 20MHz | - | 32 | - | ROMless | - | 2K x 8 | - | - | Internal | -40°C ~ 85°C | 44-LQFP |
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