Details, datasheet, quote on part number: HT82K68E-L
PartHT82K68E-L
CategoryMicrocontrollers => 8 bit
DescriptionMultimedia Keyboard Encoder 8-Bit MCU
This device is an 8-bit high performance peripheral interface IC, designed for multiple I/O products and multimedia applications. It supports interface to a low speed PC with multimedia keyboard or wireless keyboard in Windows 95, Windows 98 or Windows 2000 environment. A HALT feature is included to reduce power consumption.
CompanyHoltek Semiconductor Inc.
DatasheetDownload HT82K68E-L datasheet
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Features, Applications

Features

Operating voltage: 1.8V~5.5V 34 bidirectional I/O line and 3 CMOS output One 8-bit programmable timer counter with overflow 2.0V LVR by option (default disable) HALT function and wake-up feature reduce power

Six-level subroutine nesting Bit manipulation instructions 16-bit table read instructions 63 powerful instructions All instructions or 2 machine cycles 20/28-pin SOP, 48-pin SSOP package

Crystal or RC oscillator Watchdog Timer 3K16 program EPROM 1608 data RAM One external interrupt pin (shared with PC2)

This device an 8-bit high performance peripheral interface IC, designed for multiple I/O products and multimedia applications. It supports interface to a low speed PC with multimedia keyboard or wireless keyboard in Windows 95, Windows 98 or Windows 2000 environment. A HALT feature is included to reduce power consumption. The mask version HT82K68A-L is fully pin and functionally compatible with the OTP version HT82K68E-L device.

Pin Name I/O Mask Option Wake-up Pull-high or None Pull-high or None Wake-up Pull-high or None Wake-up Pull-high or None Wake-up Pull-high or None Pull-high or None Pull-high or None Description Bidirectional 8-bit input/output port. Each bit can be configured as a wake-up input by mask option. Software* instructions determine the CMOS output or Schmitt Trigger input with or without 12K pull-high resistor. Bidirectional 8-bit input/output port. Software* instructions determine the output or Schmitt Trigger input with or without pull-high resistor. This pin is an I/O port. NMOS open drain output with pull-high resistor and can be used as DATA or CLOCK line of PS2. This pin can be configured as a wake-up input by mask option. This pin is an I/O port. NMOS open drain output with pull-high resistor and can be used as DATA or CLOCK line of PS2. This pin can be configured as a wake-up input by mask option. Bidirectional 2-bit input/output port. Each bit can be configured as a wake-up input by mask option. Software* instructions determine the CMOS output or Schmitt Trigger input with or without pull-high resistor. PC2 also as external interrupt input pin. PE0 determine whether rising edge or falling edge PC2 to trigger the INT circuit. Bidirectional 4-bit input/output port. Software* instructions determine the CMOS output or Schmitt Trigger input with or without pull-high resistor. Bidirectional 8-bit input/output port. Software* instructions determine the CMOS output or Schmitt Trigger input with or without pull-high resistor.


 

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