Microchip Technology, Inc. Integrated Circuits (ICs) - Embedded - Microcontrollers AT80C51RD2-3CSUM

The AT80C51RD2 microcontroller is a high-performance 8-bit device compatible with the 80C52 architecture. It features four 8-bit I/O ports, three 16-bit timer/counters, and 256 bytes of internal scratch pad RAM. The microcontroller supports up to 40 MHz operation in standard mode and offers 16K or 32K bytes of on-chip ROM program memory, with a ROMless version available. It includes 1024 bytes of expandable RAM (XRAM) that can be configured in various sizes, and it supports eight interrupt sources with four priority levels. Additional features include a programmable counter array with five channels, a full duplex enhanced UART with a dedicated baud rate generator, and a hardware watchdog timer. The device operates within a supply voltage range of 2.7V to 5.5V and is available in multiple package types, including PDIL40, PLCC44, and VQFP44. The operating temperature ranges from -40¬8C to +85¬8C, making it suitable for both commercial and industrial applications. This microcontroller is ideal for projects requiring robust performance and flexibility in embedded systems.