| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| P87C521SF76 | INTEL CORP | MCS 51 | 8-Bit | 16MHz | SIO | 32 | 8KB (8K x 8) | OTP | - | 256 x 8 | 4 V ~ 6 V | - | External | 0°C ~ 70°C | 40-DIP | |
| P87C5233SF76 | INTEL CORP | MCS 51 | 8-Bit | 33MHz | SIO | 32 | 8KB (8K x 8) | OTP | - | 256 x 8 | 4 V ~ 6 V | - | External | 0°C ~ 70°C | 40-DIP | |
| P87C5224SF76 | INTEL CORP | MCS 51 | 8-Bit | 24MHz | SIO | 32 | 8KB (8K x 8) | OTP | - | 256 x 8 | 4 V ~ 6 V | - | External | 0°C ~ 70°C | 40-DIP | |
| P87C51FA33SF76 | INTEL CORP | MCS 51 | 8-Bit | 33MHz | SIO | 32 | 8KB (8K x 8) | OTP | - | 256 x 8 | 4.5 V ~ 5.5 V | - | External | 0°C ~ 70°C | 40-DIP | |
| P87C51FA24SF76 | INTEL CORP | MCS 51 | 8-Bit | 24MHz | SIO | 32 | 8KB (8K x 8) | OTP | - | 256 x 8 | 4.5 V ~ 5.5 V | - | External | 0°C ~ 70°C | 40-DIP | |
| TP87C51FA24SF76 | INTEL CORP | MCS 51 | 8-Bit | 24MHz | SIO | 32 | 8KB (8K x 8) | OTP | - | 256 x 8 | 4.5 V ~ 5.5 V | - | External | -40°C ~ 85°C | 40-DIP | |
| TP87C51FA1SF76 | INTEL CORP | MCS 51 | 8-Bit | 16MHz | SIO | 32 | 8KB (8K x 8) | OTP | - | 256 x 8 | 4.5 V ~ 5.5 V | - | External | -40°C ~ 85°C | 40-DIP | |
| P87C51RA1 | INTEL CORP | MCS 51 | 8-Bit | 16MHz | SIO | 32 | 8KB (8K x 8) | OTP | - | 512 x 8 | 4 V ~ 6 V | - | External | 0°C ~ 70°C | 40-DIP | |
| P87C51RA24 | INTEL CORP | MCS 51 | 8-Bit | 24MHz | SIO | 32 | 8KB (8K x 8) | OTP | - | 512 x 8 | 4.5 V ~ 5.5 V | - | External | 0°C ~ 70°C | 40-DIP | |
| P87C251SP16 | INTEL CORP | MCS 251 | 8-Bit | 16MHz | SIO | 32 | 8KB (8K x 8) | OTP | - | 512 x 8 | 4.5 V ~ 5.5 V | - | External | 0°C ~ 70°C | 40-DIP |
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