BR34E02NUX-3E2 데이터 시트보기 (PDF) - ROHM Semiconductor
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BR34E02NUX-3E2 Datasheet PDF : 20 Pages
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BR34E02FVT-3,BR34E02NUX-3
●Block diagram
A0 1
A1 2
PROTECT_MEMORY_ARRAY
2Kbit_MEMORY_ARRAY
8bit
ADDRESS
SLAVE , WORD
DECODER 8bit ADDRESS REGISTER
8bit
DATA
REGISTER
Technical Note
8 VCC
7 WP
A2 3
START
STOP
CONTOROL LOGIC
ACK
GND 4 HIGH VOLTAGE GEN.
VCC LEVEL DETECT
6 SCL
5 SDA
Fig.2 Block Diagram
●Pinout diagram and description
Pin Name
Input/Output
Functions
A0 1
8 VCC
A1 2
A2 3
BR34E02FVT-3
BR34E02NUX-3
7 WP
6 SCL
GND 4
5 SDA
VCC
GND
A0,A1,A2
SCL
SDA
－
－
IN
IN
IN / OUT
Power Supply
Ground 0V
Slave Address Set.
Serial Clock Input
Slave and Word Address,
*1
Serial Data Input, Serial Data Output
WP
IN
Write Protect Input
*2
Fig.3 Pin Configuration
*1 Open drain output requires a pull-up resistor.
*2 WP Pin has a Pull-Down resistor. Please leave unconnected or
connect to GND when not in use.
●Electrical characteristics curves
The following characteristic data are typ. value.
6
5
4
SPEC
3
2
1
0
0
1
34:I2C
2
VCC[V]
Ta=85℃
Ta=-40℃
Ta=25℃
3
4
Fig.4 "H" Input Voltage VIH
(A0,A1,A2,SCL,SDA,WP)
6
5
4
3
Ta=85℃
Ta=-40℃
2
Ta=25℃
1
SPEC
0
0
1
2
3
4
VCC[V]
Fig.5 "L" Input Voltage VIL
(A0,A1,A2,SCL,SDA,WP)
1
0.8
0.6
SPEC
0.4
Ta=85℃
0.2
Ta=25℃
0
Ta=-40℃
0
1
2
3
4
IOL1[mA]
Fig.6 "L" Output Voltage VOL1-IOL1
(VCC=2.5V)
1
0.8
0.6
0.4 SPEC
Ta=85℃
Ta=25℃
0.2
Ta=-40℃
0
0
1
2
3
4
IOL2[mA]
Fig.7 "L" Output Voltage VOL2-IOL2
(VCC=1.7V)
1.2
SPEC
1
0.8
0.6
0.4
0.2
Ta=85℃
Ta=25℃
Ta=-40℃
0
0
1
2
3
4
VCC[V]
Fig.8 Input Leakage Current ILI1
(A0,A1,A2,SCL,SDA)
16
SPEC
12
8
Ta=85℃
4
Ta=25℃
Ta=-40℃
0
0
1
2
3
4
VCC[V]
Fig.9 Input Leakage Current ILI2
(WP)
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© 2011 ROHM Co., Ltd. All rights reserved.
4/19
2011.11 - Rev.A
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