89C51RC

Features Compatible with MCS®-51 Products 32K Bytes of Reprogrammable Flash Memory Endurance: 1000 Write/Erase Cycles 4V to 5.5V Operating Range Fully Static Operation: 0 Hz to 33 MHz Three-level Program Memory Lock 512 x 8-bit Internal RAM 32 Programmable I/O Lines Three 16-bit Timer/Counters Eight Interrupt Sources Programmable Serial Channel www.DataSheet4U.com Low-power Idle and Power-down Modes Interrupt Recovery from Power-down Mode Hardware Watchdog Timer Dual Data Pointer Power-off Flag Green (Pb/Halide-free) Packaging Option 8-bit Microcontroller with 32K Bytes Flash AT89C51RC 1. Description The AT89C51RC is a low-power, high-performance CMOS 8-bit microcontroller with 32K bytes of Flash programmable read-only memory and 512 bytes of RAM. The device is manufactured using Atmel’s high-density nonvolatile memory technology and is compatible with the industry-standard 80C51 and 80C52 instruction set and pinout. The on-chip Flash allows the program memory to be user programmed by a conventional nonvolatile memory programmer. A total of 512 bytes of internal RAM are available in the AT89C51RC. The 256-byte expanded internal RAM is accessed via MOVX instructions after clearing bit 1 in the SFR located at address 8EH. The other 256-byte RAM segment is accessed the same way as the Atmel AT89-series and other 8052-compatible products. By combining a versatile 8-bit CPU with Flash on a monolithic chip, the Atmel AT89C51RC is a powerful micro...