MICOM DATA
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AT89C52 8-BIT MICROCONTROLLER WITH 8K BYTES FLASH
FEATURES
• Compatible with MCS-51
TM
‚ Products
• 8K Bytes of In-System Reprogrammable Flash Memory
• Endurance: 1,000 Write/Erase Cycles
• Fully Static Operation: 0 Hz to 24 MHz
• Three-level Program Memory Lock
• 256 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
DESCRIPTION
The AT89C52 is a low-power, high-performance CMOS 8-bit microcomputer with 8K bytes of Flash
programmable and erasable read only memory (PEROM). 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 reprogrammed in-system
or by a conventional nonvolatile memory programmer. By combining a versatile 8-bit CPU with Flash on a
monolithic chip, the Atmel AT89C52 is a powerful microcomputer which provides a highly-flexible and cost-
effective solution to many embedded control applications.
PIN CONFIGURATIONS
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