HT6542, HT6542A, HT6542B Selling Leads, Datasheet
MFG:DIP Package Cooled:DIP D/C:06+
HT6542, HT6542A, HT6542B Datasheet download
Part Number: HT6542
MFG: DIP
Package Cooled: DIP
D/C: 06+
HT6542, HT6542A, HT6542B
- Table of contents:
Info of HT6542
Info of HT6542A
Info of HT6542B
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About HT6542B
PDF/DataSheet Download
Datasheet: HT6542B
File Size: 313253 KB
Manufacturer: HOLTEK [Holtek Semiconductor Inc]
Download : Click here to Download
About HT600
PDF/DataSheet Download
Datasheet: HT600
File Size: 159598 KB
Manufacturer: HOLTEK [Holtek Semiconductor Inc]
Download : Click here to Download
About HT6542B
PDF/DataSheet Download
Datasheet: HT6542B
File Size: 313253 KB
Manufacturer: HOLTEK [Holtek Semiconductor Inc]
Download : Click here to Download
HT6542B General Description
The HT6542B is a keyboard controller developed by Holtek with a 4-bit microprocessor. It is pin-to-pin compatible with Intel 8042 keyboard controller used in IBM PC's. PC manufacturers need not modify any printed wiring layout when using the HT6542B in lieu of the Intel 8042 based keyboard controller. Furthermore, the HT6542B can support a system clock speed of up to 12MHz. The HT6542B can detect the motherboard type automatically, therefore it can be employed on both of AT and PS/2 motherboard.
HT6542B Maximum Ratings
Supply Voltage ..........................0.3V to 5.5V
Input Voltage .............. VSS0.3V to VDD+0.3
Storage Temperature ............. 50 to 125
Operating Temperature ................. 0 to 70
Input Voltage .............. VSS0.3V to VDD+0.3
Storage Temperature ............. 50 to 125
Operating Temperature ................. 0 to 70
HT6542B Features
· High reliability MOS technology
· 8042-type host interface
· 6MHz-12MHz operating frequency
· Communicates with keyboard directly
· Provides enhanced Gate A20 switching
· Support PS/2 compatible mouse
· Auto-detect AT and PS/2 motherboard
· Support 40 pin DIP and 44 pin PLCC packages
· 8042-type host interface
· 6MHz-12MHz operating frequency
· Communicates with keyboard directly
· Provides enhanced Gate A20 switching
· Support PS/2 compatible mouse
· Auto-detect AT and PS/2 motherboard
· Support 40 pin DIP and 44 pin PLCC packages
HT6542B Connection Diagram
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