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EM78M611E

EM78M611E

The EM78M611E is an integrated USB MTP controller IC. It has a built-in USB transceiver, built-in 4-bit EEPROM, built-in PWM function and built-in AD converter. The EM78M611E can be a USB & PS/2 Keyboard & Mouse controller.
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The EM78M611E is an integrated USB MTP controller IC. It has a built-in USB transceiver, built-in 4-bit EEPROM, built-in PWM function and built-in AD converter. The EM78M611E can be a USB & PS/2 Keyboard & Mouse controller.
Features
  • Fully compliant with the Universal Serial Bus Specification, version 1.1
  • USB keyboard design is compliant with USB Device Class Definition for Human
    Interface Device (HID), Firmware Specification, and version 1.1
  • Two 8-bit transmit FIFOs
  • One 8-bit bidirectional FIFO
  • 6K x 13 on-chip Program ROM
  • 144 bytes of General Purpose RAM
  • 11 LED direct sink pins with internal serial resistor (P70-P72, P76-P77, P90-P93,
    P95-P96)
  • Built-in 4-bit EEPROM with a minimum of 10K write/erase cycles (achieved by
    F/W)
  • Built-in PWM (Pulse Width Modulation) function
  • Built-in 24 channels Analog-to-Digital converter with 10-bit resolution
  • 8-level stack for subroutine nesting
  • RC Oscillator with internal RC
  • Ports 5, 6, 8, 9, P74~P77 with pull-up resistors
  • Wake-up pins in Ports 6, 9, P74~P77
  • Operates at 6MHz or 12MHz frequency
    * 6MHz Frequency: 2.5V~5.5V
    * 12MHz Frequency: 4.0V~5.5V only
  • Available in 40-pin DIP, 44-pin QFP, 20-pin PDIP/SOP/SSOP, 24-pin PDIP/SOP
  • Built-in 20MHz Low Pass Filter in Oscillator (maximum MCU frequency is 12MHz)

Applications
  • USB Keyboard only
  • Keyboard switch with USB or PS/2
  • USB keyboard with PS/2 mouse port
  • USB joystick
? ? ? 芯片資料下載:
? ? ?EM78M611E芯片手冊(cè)


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