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AT89S52 - 8-bit Microcontroller

General Description

The AT89S52 is a low-power, high-performance CMOS 8-bit microcontroller with 8K bytes of in-system programmable Flash memory.

The device is manufactured using Atmel’s high-density nonvolatile memory technology and is compatible with the industry-standard 80C51 instruction set and pinout.

Key Features

  • Compatible with MCS®-51 Products.
  • 8K Bytes of In-System Programmable (ISP) Flash Memory.
  • Endurance: 10,000 Write/Erase Cycles.
  • 4.0V to 5.5V Operating Range.
  • Fully Static Operation: 0 Hz to 33 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.
  • Full Duplex UART Serial Channel.
  • Low-power Idle and Po.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
Features • Compatible with MCS®-51 Products • 8K Bytes of In-System Programmable (ISP) Flash Memory – Endurance: 10,000 Write/Erase Cycles • 4.0V to 5.5V Operating Range • Fully Static Operation: 0 Hz to 33 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 • Full Duplex UART Serial Channel • Low-power Idle and Power-down Modes • Interrupt Recovery from Power-down Mode • Watchdog Timer • Dual Data Pointer • Power-off Flag • Fast Programming Time • Flexible ISP Programming (Byte and Page Mode) • Green (Pb/Halide-free) Packaging Option 1. Description The AT89S52 is a low-power, high-performance CMOS 8-bit microcontroller with 8K bytes of in-system programmable Flash memory.