BU21077MUV Datasheet, PDF (2/16 Pages) Rohm – Capacitive Switch Controller IC

BU21077MUV
Pin Configurations
15
16
SIN1
SIN0
AVDD
DVDD
RSTB
20
1
BU21077MUV
TOP VIEW
11
10
SIN5
SIN6
SIN7
TEST
INT
6
5
Pin Descriptions
Figure 2. Pin Configurations
Pin
No.
Pin Name
I/O
Functions
Note
Power
Initial
Condition
I/O
Equivalent
Circuit
1
VDD Power Power
-
-
-
2
VSS Ground Ground
-
-
-
3
NC
-
-
-
-
-
4
SCL
In Host-I/F SCL pin
VDD
Hi-Z
b
5
SDA
InOut Host-I/F SDA pin
VDD
Hi-Z
b
6
INT
Out Interrupt output
VDD
Hi-Z
b
7 TEST
In Test input
Fix ‘L’ at the normal operation VDD
Hi-Z
c
8
SIN7
InOut Sensor 7
AVDD Hi-Z
a
9
SIN6
InOut Sensor 6
AVDD Hi-Z
a
10
SIN5
InOut Sensor 5
AVDD Hi-Z
a
11
NC
-
-
-
-
-
12
SIN4
InOut Sensor 4
AVDD Hi-Z
a
13
SIN3
InOut Sensor 3
AVDD Hi-Z
a
14
SIN2
InOut Sensor 2
AVDD Hi-Z
a
15
NC
-
-
-
-
-
16
SIN1
InOut Sensor 1
AVDD Hi-Z
a
17
SIN0
InOut Sensor 0
AVDD Hi-Z
a
18 AVDD Power LDO output for analog blocks
-
-
-
19 DVDD Power LDO output for digital blocks
-
-
-
20 RSTB
In Reset bar input
Active ‘L’
VDD
Hi-Z
c
I/O Equivalent Circuits
AVDD
VDD
VDD
ASW
AIN
CIN
I
PAD
I
PAD
PAD
I
OEN
OEN
Figure 3. I/O Equivalent Circuit (a)
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TSZ22111・15・001
Figure 4. I/O Equivalent Circuit (b)
2/12
Figure 5. I/O Equivalent Circuit (c)
TSZ02201-0L5L0F300820-1-2
14.Jul.2016 Rev.002