BU21170MUV Datasheet, PDF (2/33 Pages) Rohm – Capacitive Switch Controller IC

BU21170MUV
Pin Configuration
BU21170MUV
TOP VIEW
15 14 13 12 11
LED4 16
N.C. 17
SIN4 18
SIN3 19
SIN2 20
10 INT
9 SDA
8 SCL
7 TEST
6 VSS
12345
Pin Descriptions
Pin
No.
Pin
Name
Type
1 SIN1 Ain
2 SIN0 Ain
3 AVDD Power
4 VDD Power
5 DVDD Power
6 VSS Ground
7 TEST In
8 SCL InOut
9 SDA InOut
10 INT Out
11 ADR In
12 LED0 Out
13 LED1 Out
14 LED2 Out
15 LED3 Out
16 LED4 Out
17 N.C. -
18 SIN4 Ain
19 SIN3 Ain
20 SIN2 Ain
Figure 2. Pin Configuration
Function
Note
Capacitive touch sensor 1
Capacitive touch sensor 0
LDO output for analog blocks
Power
LDO output for digital blocks
Ground
Test input
Host I/F：SCL
Host I/F：SDA
Interrupt output
Select slave address input
LED control with PWM output 0
LED control with PWM output 1
LED control with PWM output 2
LED control with PWM output 3
LED control with PWM output 4
-
Capacitive touch sensor 4
Capacitive touch sensor 3
Capacitive touch sensor 2
Fixed ‘L’ at the normal operation
Active High interrupt
‘H’:0x4D , ‘L’:0x4C
Active High
Active High
Active High
Active High
Active High
Power
AVDD
AVDD
-
-
-
-
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VDD
-
AVDD
AVDD
AVDD
Initial
Condition
Hi-Z
Hi-Z
-
-
-
-
-
Hi-Z
Hi-Z
‘L’
-
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
-
Hi-Z
Hi-Z
Hi-Z
I/O
Equivalent
Circuit
Figure 3
Figure 3
-
-
-
-
Figure 4
Figure 4
Figure 4
Figure 5
Figure 4
Figure 5
Figure 5
Figure 5
Figure 5
Figure 5
-
Figure 3
Figure 3
Figure 3
I/O Equivalent Circuits
AVDD
VDD
VDD
ASW
AIN
CIN
I
PAD
I
PAD
I
PAD
OEN
OEN
Figure 3. I/O Equivalent Circuit (a)
Figure 4. I/O Equivalent Circuit (b)
Figure 5. I/O Equivalent Circuit (c)
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
2/29
TSZ02201-0L5L0F300830-1-2
14.Jul.2016 Rev.002