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AT89C51RC

ATMEL Corporation
Part Number AT89C51RC
Manufacturer ATMEL Corporation
Description 8-bit Microcontroller
Published Mar 23, 2005
Detailed Description Features • Compatible with MCS®-51 Products • 32K Bytes of Reprogrammable Flash Memory • Endurance: 10,000 Write/Erase C...
Datasheet PDF File AT89C51RC PDF File

AT89C51RC
AT89C51RC

Overview
Features • Compatible with MCS®-51 Products • 32K Bytes of Reprogrammable Flash Memory • Endurance: 10,000 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 • 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 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 microcomputer which provides a highly-flexible and cost-effective solution to many embedded control applications.
The AT89C51RC provides the following standard features: 32K bytes of Flash, 512 bytes of RAM, 32 I/O lines, three 16-bit timer/counters, a six-vector two-level interrupt architecture, a full duplex serial port, on-chip oscillator, and clock circuitry.
In addition, the AT89C51RC is designed with static logic for operation down to zero frequency and supports two software selectable power saving modes.
The Idle Mode stops the CPU while allowing the RAM, timer/cou...


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