The AT89C55-24JC is an 8-bit 8051 microcontroller with 20KB of FLASH memory and 256B of RAM. It operates at a maximum frequency of 24MHz and has a maximum supply voltage of 6V. The device is packaged in a PLCC package and is suitable for surface mount applications. It has 32 programmable I/Os and 3 timers/counters. The microcontroller has an internal oscillator and is not RoHS compliant.
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Microchip AT89C55-24JC technical specifications.
| Access Time | 24us |
| Package/Case | PLCC |
| Core Architecture | 8051 |
| Data Bus Width | 8b |
| Interface | UART |
| Lead Free | Contains Lead |
| Max Frequency | 24MHz |
| Max Operating Temperature | 70°C |
| Max Supply Voltage | 6V |
| Memory Size | 20KB |
| Memory Type | FLASH, |
| Min Operating Temperature | 0°C |
| Min Supply Voltage | 4V |
| Mount | Surface Mount |
| Number of I/Os | 32 |
| Number of Programmable I/O | 32 |
| Number of Timers/Counters | 3 |
| Oscillator Type | Internal |
| Package Quantity | 27 |
| Packaging | Rail/Tube |
| RAM Size | 256B |
| RoHS Compliant | No |
| Series | 89C |
| RoHS | Not Compliant |
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