BU21010MUV-E2 Rohm Semiconductor, BU21010MUV-E2 Datasheet - Page 10

• Manufacturer Part Number: BU21010MUV-E2
• Description: IC CTLR CAP SENSOR 8CH 16VQFN
• Manufacturer: Rohm Semiconductor
• Type: Capacitive Sensor Controllerr

Specifications of BU21010MUV-E2

• Input Type: Logic
• Output Type: Logic
• Interface: 2-Wire Serial
• Current - Supply: 300µA
• Mounting Type: Surface Mount
• Package / Case: 16-VQFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

© 2009 ROHM Co., Ltd. All rights reserved.
BU21010MUV
www.rohm.com
【F0h : Sensor Channel Setting】
【F2h : LED Channel Setting】
【F3h : Idle Exit Condition】
【F5h : LED to Sensor Linkage】
【F6h : Sampling Interval and Number of Samples Used for Button Press】
Initial val.
Initial val.
Initial val.
Initial val.
Initial val.
Name:
Address:
Description:
Address:
Description: Enables and disables the channels to be used as LED outputs.
Name:
Address:
Description:
Name:
Address:
Description: Allows the LED outputs to be automatically linked to the input channels without need for
Name:
Address:
Description:
Name:
R/W
R/W
R/W
R/W
R/W
F0h
F2h
F3h
F5h
F6h
CONT_T[3:0] : Push and hold judgment time ：
Governs how long it is before the chip decides it is push and hold. Given by the following equation:
Push-Hold Time = system clock x 2
SAMP[3:0] : Sampling Interval ：
Given by the following equation:
Sampling interval = system clock x 2
CONT_T[3]
SIN7
SIN7
Individual enabling and disabling of sensor channels. 1：Effective 0：Not in use
Valid for the 8 LED outputs.1：Effective 0：Not in use
1：Effective 0：Not used
1 : It synchronizes with the button. 0 : It synchronizes with data (The register name: DLED) from host.
Defines the sampling interval and number of samples required to recognise as a button press.
Bit7
Bit7
Bit7
Bit7
SENS_CH
F0h
F2h
IDLE_CH
F3h
LED_LINK
F5h
TIMES
F6h
LED_CH
Bit7
W
Defines which channels cause the device to wake up – i.e. go from idle mode to normal operation on a
W
key press. Selection is made on a per channel basis.
any software control.
0
1
W
-
-
-
-
-
-
0
CONT_T[2]
SIN6
SIN6
Bit6
Bit6
Bit6
Bit6
W
W
0
1
Bit6
-
-
-
-
-
-
W
0
19
13
CONT_T[1]
x CONT_T (Example: system clock 1[MHz] time : About 520[msec]).
SIN5
SIN5
Bit5
Bit5
Bit5
Bit5
x SAMP (Example: system clock 1[MHz] time : About 8.2[msec]).
W
W
0
1
-
-
-
-
-
-
Bit5
W
0
CONT_T[0]
SIN4
SIN4
Bit4
Bit4
Bit4
Bit4
10/14
W
W
0
1
-
-
-
-
-
-
Bit4
W
0
LED3
LED3
SIN3
SIN3
Bit3
Bit3
Bit3
Bit3
W
W
W
W
SAMP[3]
0
0
1
1
Bit3
W
0
LED2
LED2
SIN2
SIN2
Bit2
Bit2
Bit2
Bit2
W
W
W
W
SAMP[2]
0
0
1
1
Bit2
W
0
LED1
LED1
SIN1
SIN1
Bit1
Bit1
Bit1
Bit1
W
W
W
W
SAMP[1]
0
0
1
1
Bit1
W
0
2009.04 - Rev.B
Technical Note
LED0
LED0
SIN0
SIN0
Bit0
Bit0
Bit0
Bit0
W
W
W
W
SAMP[0]
0
0
1
1
Bit0
W
0