The AT89C51-33JI is an 8-bit 8051 microcontroller with 4KB of FLASH memory and 128B of RAM. It operates at a maximum frequency of 33MHz 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 2 timers/counters. The operating temperature range is from -40°C to 85°C.
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Microchip AT89C51-33JI technical specifications.
| Access Time | 33us |
| Package/Case | PLCC |
| Core Architecture | 8051 |
| Data Bus Width | 8b |
| Interface | UART, USART |
| Lead Free | Contains Lead |
| Max Frequency | 33MHz |
| Max Operating Temperature | 85°C |
| Max Supply Voltage | 6V |
| Memory Size | 4KB |
| Memory Type | FLASH, |
| Min Operating Temperature | -40°C |
| Min Supply Voltage | 4V |
| Mount | Surface Mount |
| Number of I/Os | 32 |
| Number of Programmable I/O | 32 |
| Number of Timers/Counters | 2 |
| Oscillator Type | Internal |
| Package Quantity | 27 |
| Packaging | Rail/Tube |
| RAM Size | 128B |
| Series | 89C |
| RoHS | Not Compliant |
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