Single-Chip 8-Bit Microcontroller with 10-Bit A/D, Capture/Compare Timer, High-Speed Outputs, PWM

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Product Details

Block Diagram

Block diagram: P80C552EBA, P80C552EBB, P80C552EFA, P80C552EFB, P80C552IBA, P80C552IFA, P83C552EFA


  • 80C51 central processing unit
  • 8k ? 8 ROM expandable externally to 64 kbytes
  • ROM code protection
  • An additional 16-bit timer/counter coupled to four capture registers and three compare registers
  • Two standard 16-bit timer/counters
  • 256 ? 8 RAM, expandable externally to 64 kbytes
  • Capable of producing eight synchronized, timed outputs
  • A 10-bit ADC with eight multiplexed analog inputs
  • Two 8-bit resolution, pulse width modulation outputs
  • Five 8-bit I/O ports plus one 8-bit input port shared with analog inputs
  • I²C-bus serial I/O port with byte oriented controller and target functions
  • Full-duplex UART compatible with the standard 80C51
  • On-chip watchdog timer
  • Three speed ranges:
    • 3.5 to 16 MHz
    • 3.5 to 24 MHz (ROM, ROMless only)
  • Three operating ambient temperature ranges:
    • P83C552xBx: 0 Cel to +70 Cel
    • P83C552xFx: ?40 Cel to +85 Cel (XTAL frequency max. 24 MHz)
    • P83C552xHx: ?40 Cel to +125 Cel (XTAL frequency max. 16 MHz)


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