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AT89S64 - 8-bit Flash Microcontroller

This page provides the datasheet information for the AT89S64, a member of the AT89S54 8-bit Flash Microcontroller family.

Features

  • 80C52 Compatible.
  • 8051 Instruction Compatible.
  • Six 8-bit I/O Ports (64 Pins or 68 Pins Versions).
  • Four 8-bit I/O Ports (44 Pins Version).
  • Three 16-bit Timer/Counters.
  • 256 Bytes Scratch Pad RAM.
  • 9 Interrupt Sources with 4 Priority Levels.
  • Integrated Power Monitor (POR/PFD) to Supervise Internal Power Supply (AT89S64 Only).
  • ISP (In-System Programming) Using Standard VCC Power Supply.
  • 2048 Bytes Boot ROM Cont.

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Full PDF Text Transcription

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Features • 80C52 Compatible – 8051 Instruction Compatible – Six 8-bit I/O Ports (64 Pins or 68 Pins Versions) – Four 8-bit I/O Ports (44 Pins Version) – Three 16-bit Timer/Counters – 256 Bytes Scratch Pad RAM – 9 Interrupt Sources with 4 Priority Levels • Integrated Power Monitor (POR/PFD) to Supervise Internal Power Supply (AT89S64 Only) • ISP (In-System Programming) Using Standard VCC Power Supply • 2048 Bytes Boot ROM Contains Low Level Flash Programming Routines and a Default Serial Loader • High-speed Architecture – In Standard Mode: 40 MHz (Vcc 2.7V to 5.5V, both Internal and external code execution) 60 MHz (Vcc 4.5V to 5.5V and Internal Code execution only) – In X2 mode (6 Clocks/machine cycle) 20 MHz (Vcc 2.7V to 5.5V, both Internal and external code execution) 30 MHz (Vcc 4.
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