8-bit microcontroller (MCU) with 16KB FLASH memory and 1.25KB RAM. Features an 8051 core architecture operating at up to 60MHz, with an access time of 60µs. Includes SPI, UART, and USART interfaces, 32 programmable I/Os, and 3 timers/counters. Packaged in a 44-pin PLCC with tin, matte contact plating, this surface-mount device operates from 2.7V to 3.6V and is RoHS compliant. Peripherals include POR, PWM, and a watchdog timer.
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Microchip AT89C51RB2-SLSUL technical specifications.
| Access Time | 60us |
| Package/Case | PLCC |
| Contact Plating | Tin, Matte |
| Core Architecture | 8051 |
| Data Bus Width | 8b |
| Frequency | 40MHz |
| Interface | SPI, UART, USART |
| Lead Free | Lead Free |
| Max Frequency | 60MHz |
| Max Operating Temperature | 85°C |
| Memory Size | 16KB |
| Memory Type | FLASH, |
| Min Operating Temperature | -40°C |
| Max Power Dissipation | 1W |
| Max Supply Voltage | 3.6V |
| Min Supply Voltage | 2.7V |
| Mount | Surface Mount |
| Number of I/Os | 32 |
| Number of Programmable I/O | 32 |
| Number of Timers/Counters | 3 |
| Operating Supply Voltage | 3.3V |
| Oscillator Type | External |
| Package Quantity | 972 |
| Packaging | Rail/Tube |
| Peripherals | POR, PWM, WDT |
| RAM Size | 1.25KB |
| RoHS Compliant | Yes |
| Series | 89C |
| Watchdog Timer | Yes |
| RoHS | Compliant |
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