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BU21072MUV データシート(PDF) 7 Page - Rohm

部品番号 BU21072MUV
部品情報  Capacitive Switch Controller ICs
Download  17 Pages
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メーカー  ROHM [Rohm]
ホームページ  http://www.rohm.com
Logo ROHM - Rohm

BU21072MUV データシート(HTML) 7 Page - Rohm

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Datasheet
Datasheet
BU21072MUV / BU21078MUV
TSZ02201-0Y2Y0FZ00020-1-2
© 2012 ROHM Co., Ltd. All rights reserved.
12.Mar.2012 Rev.001
www.rohm.com
TSZ22111・15・001
S
T
A
R
T
W
R
I
T
E
A
C
K
A
C
K
A
C
K
S
T
O
P
S S S S S S S
RRR RR RRR
W W W W W W W W
AA AA AA A
A A A AA AA A
D D D D D D D D
65 432 10
7 6 5 4 3 210
7 654 32 10
S
T
A
R
T
W
R
I
T
E
A
C
K
A
C
K
S
T
A
R
T
R
E
A
D
A
C
K
N
A
C
K
S
T
O
P
S S S S S S S
RRR RR RRR
S S S S S S S
R RR RR RRR
AA AA AA A
A A A AA AA A
A A A A A AA
D D D D D D D D
65 432 10
7 6 5 4 3 210
654 32 10
7 6 5 432 10
S
T
A
R
T
W
R
I
T
E
A
C
K
A
C
K
S
T
A
R
T
R
E
A
D
A
C
K
A
C
K
A
C
K
N
A
C
K
S
T
O
P
S S S S S S S
RRR RR RRR
S S S S S S S
R RR RR RRR
R
R
R R R RRR RR
AA AA AA A
A A A AA AA A
A A A A A AA
D D D D D D D D
D
D
D D D D D D D D
65 432 10
7 6 5 4 3 210
654 32 10
7 6 5 432 10
7
0
7 654 32 10
Read Data
from Register
(Register Address
= n+x)
Slave Address
=0x5C
(BU21072MUV)
=0x5D
(BU21078MUV)
Slave Address
=0x5C
(BU21072MUV)
=0x5D
(BU21078MUV)
Register Address
(n)
Slave Address
=0x5C
(BU21072MUV)
=0x5D
(BU21078MUV)
Read Data
from Register
(Register Address
= n)
Write Data
to Register
(Register Address
= n)
Register Address
(n)
Read Data
from Register
(Register Address
= n)
Slave Address
=0x5C
(BU21072MUV)
=0x5D
(BU21078MUV)
Slave Address
=0x5C
(BU21072MUV)
=0x5D
(BU21078MUV)
Register Address
(n)
●Scan rate
After scan each sensor in time series, MPU convert to the switch operations from the detected results. The number of
sensor ports is difference between BU21072MUV and BU21078MUV, but one scan rate is the same. One scan rate is
about 16msec at typical.
Fig.11 Timing chart of scan rate
Fig.10 2-wire serial bus protocol
BU21072MUV
BU21078MUV
●Sequential Read
●Random Read
●Byte Write
SIN9 is
nonexistent on
BU21078MUV.
SIN8 is the same
above.
SIN13 and
SIN14 are
nonexistent on
BU21072MUV.
SIN11 and
SIN12 are the
same above.
SA : Slave Address
RA : Register Address
RD : Read Data
WD : Write Data


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