HT82H791, HT82K19C-1, HT82K28A Selling Leads, Datasheet
MFG:HOLTEK Package Cooled:QFP D/C:98+
HT82H791, HT82K19C-1, HT82K28A Datasheet download
Part Number: HT82H791
MFG: HOLTEK
Package Cooled: QFP
D/C: 98+
HT82H791, HT82K19C-1, HT82K28A
- Table of contents:
Info of HT82H791
Info of HT82K19C-1
Info of HT82K28A
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About HT80232
PDF/DataSheet Download
Datasheet: HT80232
File Size: 1122633 KB
Manufacturer:
Download : Click here to Download
About HT80232
PDF/DataSheet Download
Datasheet: HT80232
File Size: 1122633 KB
Manufacturer:
Download : Click here to Download
About HT82K28A
PDF/DataSheet Download
Datasheet: HT82K28A
File Size: 146993 KB
Manufacturer: HOLTEK [Holtek Semiconductor Inc]
Download : Click here to Download
HT82K28A General Description
The HT82K28A is a keyboard encoder especially designed for IBM PC/AT, IBM PS/2 and all compatible machines.
The HT82K28A accepts keyboard inputs and contains a 16-character first-in-first-out buffer in which data is stored. An inexpensive RC oscillator can be used for the system clock. The device offers the advantage of simple implementation in high performance and low cost keyboard applications.
HT82K28A Maximum Ratings
Supply Voltage.........................4.75V to 5.25V
Input Voltage................VSS-0.3V to VDD+0.3V
Storage Temperature................ -55to 125
Operating Temperature ..................- to 70
Note: These are stress ratings only. Stresses exceeding the range specified under "Absolute MaximumRatings " may cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability.
Input Voltage................VSS-0.3V to VDD+0.3V
Storage Temperature................ -55to 125
Operating Temperature ..................- to 70
Note: These are stress ratings only. Stresses exceeding the range specified under "Absolute MaximumRatings " may cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability.
HT82K28A Features
· Designed for Windows 95/98/NT
· Supports 3 Windows 95 Keys
· Supports Power, Sleep and Wake-up Windows 98 ACPI functions
· Supports Japanese, Korean and Portuguese
· Supports Japanese DOS/V 106-key keyboard
· Supports code set 1, for PS/2 model 30 keyboard
· Supports code set 2, for PC/AT, PS/2 model 50,60 keyboards
· Supports code set 3, for PS/2 model 80 keyboard
· RC oscillator
· Phantom key detection
· Minimal external components
· Pin-compatible with Holtek HT6547E-2
· 40-pin DIP/DICE form
· Supports 3 Windows 95 Keys
· Supports Power, Sleep and Wake-up Windows 98 ACPI functions
· Supports Japanese, Korean and Portuguese
· Supports Japanese DOS/V 106-key keyboard
· Supports code set 1, for PS/2 model 30 keyboard
· Supports code set 2, for PC/AT, PS/2 model 50,60 keyboards
· Supports code set 3, for PS/2 model 80 keyboard
· RC oscillator
· Phantom key detection
· Minimal external components
· Pin-compatible with Holtek HT6547E-2
· 40-pin DIP/DICE form
HT82K28A Connection Diagram
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