BU21010MUV-E2 Rohm Semiconductor, BU21010MUV-E2 Datasheet - Page 5

• 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

●HOST I/F
© 2009 ROHM Co., Ltd. All rights reserved.
BU21010MUV
www.rohm.com
【Data format】
【PROTOCOL】
・Write Protocol
・Read Protocol
・ 2 wire serial, BUS
fSCL : SCL Clock Freq
t
t
t
t
t
t
t
condition
HD;STA
LOW
HIGH
HD;DAT
SU;DAT
SU;STO
BUF
Slave mode only
Slave Address = 5Eh
Normal （Normal mode. 100kHz Transfer rate）
Fs mode (Fast mode. 400kHz Transfer rate) also.
Not adapting sequential read / write.
S
S
: Free time of bus between STOP condition and START
: SCL “L”
: SCL “H”
SLAVE ADDRESS
SLAVE ADDRESS
: Data setup time
SCL
: START condition hold time
: Data hold time
: START condition hold time
SDA
7bit = 5Eh
7bit = 5Eh
START
t
HD;STA
Address
W
W
from Master to Slave
from Slave to Master
Parameter
A
A
Read
ACK
REGISTER
REGISTER
ADDRESS
ADDRESS
8bit
8bit
Data
5/14
A
A
t
SU;DAT
W
S SLAVE ADDRESS R A
S
P
R
A
N
ACK
WRITE DATA
= STOP condition
= START condition
= data direction READ (SDA HIGH)
= data direction WRITE (SDA LOW)
= acknowledge (SDA LOW)
= not acknowledge (SDA HIGH)
7bit = 5Eh
Standard mode
0.25
MIN
4.0
4.7
4.0
0.1
4.0
4.7
0
8bit
Data
MAX
3.45
100
t
HD;DAT
-
-
-
-
-
-
A
ACK
P
High Speed mode
MIN
0.1
1.3
0.6
1.3
0.6
0.1
0.6
0
STOP
READ DATA
t
2009.04 - Rev.B
Technical Note
SU;STO
8bit
MAX
400
0.9
-
-
-
-
-
-
μsec
μsec
μsec
μsec
μsec
μsec
μsec
Unit
kHz
N
P