BU9206 [ROHM]
PS / 2 Mouse Controller; PS / 2鼠标控制器
| 型号： | BU9206 |
| 厂家： | 
ROHM |
| 描述： | PS / 2 Mouse Controller |
| 文件： | 总6页 (文件大小：64K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Multimedia ICs
PS / 2 Mouse Controller
BU9206
The BU9206 is a PS / 2 mouse communication controller for PCs. This processor shapes waveforms and counts sig-
nals from the mouse rotary encoder as the mouse is moved, to provide two-way communication between mouse and
PC system.
Applications
•
PC mouse
Features
•
1) For PS / 2 mouse.
3) CMOS process enables low current consumption.
2) Compatible with a wide range of input signals, be-
cause it automatically sets the input threshold levels
for the X and Y direction, corresponding to the out-
put level of the rotary encoder inside the mouse.
Absolute maximum ratings (Ta = 25°C)
•
Parameter
Power supply voltage
Power dissipation
Operating temperature
Storage temperature
Input voltage
Symbol
VDD
Limits
Unit
– 0.3 ~ + 7.0
1000
V
mW
°C
°C
V
Pd
Topr
Tstg
VIN
– 25 ~ + 75
– 55 ~ + 125
– 0.3 ~ VDD + 0.3
– 0.3 ~ VDD + 0.3
VOUT
V
Output voltage
Reduced by 10 mW for each increase in Ta of 1°C over 25°C.
Recommended operating conditions (Ta = 25°C)
•
Parameter
Symbol
Min.
4.5
Typ.
5.0
Max.
5.5
Unit
V
Application pin
Power supply voltage
VDD
VDD
SWR, SWL, TEST2B, TEST1B,
TEST0, RESETB
H input voltage 1
H input voltage 2
L input voltage 1
VIH1
VIH2
VIL1
0.8 VDD
0.4 VDD
0
—
—
VDD
VDD
V
V
V
SCLK, SDATA
SWR, SWL, TEST2B, TEST1B,
TEST0, RESETB
—
0.2 VDD
L input voltage 2
XY input H voltage
XY input L voltage
VIL2
VAUP
VALP
0
0.3 VDD
0
—
—
—
0.16 VDD
0.8 VDD
V
V
V
SCLK, SDATA
XA, XB, YA, YB
XA, XB, YA, YB
0.48 VAUP
1
Multimedia ICs
BU9206
Block diagram
•
Data decoder
Noise
cancel
Latch
Latch
SWR
SWL
XA
1
2
3
4
5
6
7
8
16 VDD
Data shifter
for input
Noise
cancel
Data shifter
for output
15 SDATA
Peak det.
Comp.
Data encoder
14 RESETB
Scaling and
turbo
Accumlator
Sample
timing
Comp.
Regi.
XB
13 OSC1
Clk gen.
Peak det.
Comp.
Osc
YA
12 OSC2
Accumlator
Regi.
Comp.
YB
11 TEST0
SCLK gen.
I / O inhibit
SCLK
10 TEST1B
VSS
9
TEST2B
2
Multimedia ICs
BU9206
Pin descriptions
•
Pin No.
Pin name
I / O
IN
Function
I / O format
Right switch input
Pull-up resistor built in
Low active
1
SWR
Typ.38kΩ
SWR
SWL
Left switch input
Pull-up resistor built in
Low active
2
SWL
IN
3
4
5
6
XA
XB
YA
YB
IN
IN
IN
IN
Rotary encoder X-direction, A-phase input
Rotary encoder X-direction, B-phase input
Rotary encoder Y-direction, A-phase input
Rotary encoder Y-direction, B-phase input
XA
XB
YA
YB
+
–
COMP
Vref
Typ.5kΩ
Serial clock input / output
Pull-up resistor built in
Open drain output
7
SCLK
I / O
8
9
V
SS
—
IN
Input / output reference voltage: 0V
—
Tip test input
Pull-up resistor built in
Low active
TEST2B
TEST1B
Typ.11kΩ
TEST1B
TEST2B
Normally open or connected to VDD
10
IN
Typ.38kΩ
Pull-up resistor built in
Normally connected to GND
11
TEST0
IN
TURBO
3
Multimedia ICs
BU9206
Pin No.
Pin name
OSC2
I / O
Function
I / O format
12
IN
Pin to connect oscillator for clock
Connect a 4MHz oscillator between
OSC1 and OSC2.
OSC2
OSC1
13
OSC1
OUT
Typ.38kΩ
Reset input
Pull-up resistor built in
Low active
14
RESETB
IN
RESETB
Typ.5kΩ
Serial data input / output
Pull-up resistor built in
Open drain output
15
16
SDATA
I / O
SDATA
Power supply pin
Connect a 4.5 - 5.5V power supply.
VDD
—
—
4
Multimedia ICs
BU9206
Electrical characteristics (unless otherwise noted, Ta = 25°C, VDD = 5.0V)
•
Parameter
Symbol Min.
Typ.
2.1
0.43
130
440
1.0
—
Max.
4.0
0.6
195
660
1.5
10
Unit
mA
V
Conditions
fCK = 4.0MHz
ISINK = 4.0mA
VIN = VSS
Applied pin
Supply current
IDD
VOL1
IIL1
0.5
—
VDD
Output low level voltage 1
Input low level current 1
Input low level current 2
Input low level current 3
Input low level current 4
Input high level current 1
Input high level current 2
Input high level current 3
Input high level current 4
OSC2 input current
SCLK, SDATA
98
330
0.75
—
µA
µA
mA
µA
µA
µA
µA
µA
µA
MHz
SWR, SWL, TEST0, RESETB
TEST1B, TEST2B
SCLK, SDATA
IIL2
VIN = VSS
IIL3
VIN = VSS
IIL4
VIN = VSS
XA, XB, YA, YB
IIH1
IIH2
IIH3
IIH4
IOSC
fOSC
—
—
10
VIN = VDD
SWR, SWL, TEST0, RESETB
TEST1B, TEST2B
SCLK, SDATA
—
—
10
VIN = VDD
—
—
10
VIN = VDD
—
—
10
VIN = VDD
XA, XB, YA, YB
—
± 6
4.0
± 20
—
VIN = GND or VDD OSC2
OSC1
Oscillation frequency
—
Application circuit
•
1
2
3
4
5
6
7
8
SWR
VDD
16
15
14
13
VDD
SWL
XA
SDATA
SDATA
VSS
SCLK
RESETB
OSC1
XB
YA
OSC2
12
11
10
9
YB
TEST0
TEST1B
TEST2B
SCLK
VSS
Fig. 1
5
Multimedia ICs
BU9206
External dimensions (Units: mm)
•
19.4 ± 0.3
16
1
9
8
7.62
2.54
0.5 ± 0.1
0° ~ 15°
DIP16
6
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