HT6513 Datasheet, PDF (1/8 Pages) Holtek Semiconductor Inc – Mouse Controller

HT6513
Mouse Controller
Features
• _{Low power dissipation}
• _{Use 32.768KHz crystal}
• _{Crystal oscillator circuits on-chip}
• _{1200 baud rate serial output}
• _{Power directly from RS-232C without exter-}
nal power supply
• _{Three key-switches and four photo-couples}
inputs
• _{Key-in and key-release debounce interval 52 ms}
• _{The HT6513 can execute two different}
outputs with any of the key-switch inputs
• _{RXD with heavy NMOS output}
General Description
The HT6513 is a specially designed CMOS IC
for mouse control applications. Capable of driv-
ing up to 3 key-switches and 4 photo-couplers
directly into a standard RS-232C line, and it
can be operated without an external power sup-
ply. It is compatible with both Microsoft and
Mouse systems with false entries being pre-
vented by internal debounce circuits.
Pin Assignment
1
23rd Oct ’96