HT6513B

HT6513B M+ Plug & Play Mouse Controller Features · Supports optomechanical mouse · In M+ mode, compatible with Plug and Play · Fit a defined Windows 95 class name in M+ mode · Uses 32.768kHZ crystal · Crystal oscillator circuits on chip · 1200/9600 baud rate serial output · Power directly from RS-232C without external power supply General Description The HT6513B is specially designed for PnP compatible mouse controller. Capable of driving up to 3 key-switches and 4 photo-couplers (optomechanical mouse) directly into a standard Block Diagram · Three key-switches and four photo-coupler inputs · Compatible with both M+ and Mouse systems · Microsoft system mode with middle key supported · Mouse mode (M+/PC) changeable during power on reset · RXD with heavy NMOS open drain output RS-232C line, and it can be operated without an external power supply. It is compatible with both M+ and Mouse systems with false entries being prevented by internal debounce circuits. X1 X2 Y1 Y2 TEST L M R MS O SCI O SCO C o m p a ra to r a n d M o tio n D e te c to r D ebounce O s c illa to r C ir c u it M o d e S e le c to r T im in g C o n tro l H B _LB P lu g & P la y ID C o n v e rte r D a ta C om m and D ecoder R TS D a ta O u tp u t RXD 1 February 1, 2000 HT6513B Pin Assignment H B _LB TEST MS O SCI O SCO R TS RXD VSS 1 16 2 15 3 14 4 13 5 12 6 11 7 10 89 H T6513B 1 6 D IP VDD Y2 Y1 X2 X1 L M R Pad Description Pad No. Pad Name 1 HB_LB 2 TEST 3 MS 4 5 6 7 8 9~11 OSCI OSCO RTS ...