BU9206 Datasheet, PDF (3/6 Pages) Rohm – PS / 2 Mouse Controller

Multimedia ICs
•^{Pin descriptions}
Pin No. Pin name I / O
Function
1
SWR
Right switch input
IN
Pull-up resistor built in
Low active
2
SWL
3
XA
4
XB
5
YA
6
YB
Left switch input
IN
Pull-up resistor built in
Low active
IN
Rotary encoder X-direction, A-phase input
IN
Rotary encoder X-direction, B-phase input
IN
Rotary encoder Y-direction, A-phase input
IN
Rotary encoder Y-direction, B-phase input
BU9206
I / O format
SWR
SWL
Typ.38kΩ
XA
XB
+
YA
YB
COMP
–
Vref
Serial clock input / output
7
SCLK
I / O Pull-up resistor built in
Open drain output
Typ.5kΩ
8
VSS
9
TEST2B
—
Input / output reference voltage: 0V
Tip test input
IN
Pull-up resistor built in
Low active
10
TEST1B
IN
Normally open or connected to VDD
—
TEST1B
TEST2B
Typ.11kΩ
11
TEST0
IN
Pull-up resistor built in
Normally connected to GND
TURBO
Typ.38kΩ
3