Pt-51

Features of Pt-51

• AT89C5131A microcontroller IC, with 8051 core (6 Clocks per
  Instruction)
• Three 16-bit Timer/Counters: T0, T1 and T2
• 256 Bytes of Scratchpad RAM
• 16/32-KByte On-chip Flash EEPROM In-System Programming
  though USB
• Full-duplex Enhanced UART (EUART)
• Programmable Counter Array (PCA) with 16-bit Counter, High-speed
• Compare/Capture, PWM and Watchdog Timer Capabilities
• Keyboard Interrupt Interface on Port P1 (8 Bits)
• 34 I/O Pins, TWI (Two Wire Interface) 400Kbit/s, SPI Interface
  (Master/Slave Mode)
• 24MHz clock, Power Supply: 2.7V to 5.5V
• 4DIP switches & 4 LEDs for simple I/O based programs, slot for LCD