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参数资料
| 型号： | ISL23711 |
| 厂商： | Intersil Corporation |
| 英文描述： | Terminal Voltage +-3V or +-5V, 128 Taps IC Serial Interface |
| 中文描述： | 终端电压3V或5V供电，128丝锥集成电路串行接口 |
| 文件页数： | 2/9页 |
| 文件大小： | 270K |
| 代理商： | ISL23711 |
2
FN6127.0
August 16, 2005
Block Diagram
7-BIT
WIPER
REGISTER
(VOLATILE)
RECALL
CONTROL
CIRCUITRY
ONE
OF
128
DECODER
RESISTOR
ARRAY
R
H
SDA
SCL
TRANSFER
GATES
R
L
R
W
INTERFACE
AND
CONTROL
V-
R
H
R
W
R
L
SIMPLE BLOCK DIAGRAM
DETAILED BLOCK DIAGRAM
0
1
2
124
125
126
127
V
CC
SLAVE
ADDRESS
DECODE
A1
A0
SDA
SCL
A1
A0
GND
Pin Descriptions
PIN NUMBER
SYMBOL
DESCRIPTION
1
SDA
Data I/O for I
2
C serial interface. It has an open drain output and may be wire ORed with other open
drain active low outputs.
2
V-
Negative supply voltage for the potentiometer wiper control.
3
GND
Ground. Should be connected to a digital ground
4
A1
A1 and A0 are address select pins used to set the slave address for the I
2
C serial interface.
5
A0
A1 and A0 are address select pins used to set the slave address for the I
2
C serial interface.
6
RH
A fixed terminal for one end of the potentiometer resistor.
7
RW
The wiper terminal which is equivalent to the movable terminal of a potentiometer.
8
RL
A fixed terminal for one end of the potentiometer resistor.
9
V
CC
Positive logic supply voltage.
10
SCL
Clock input for the I
2
C serial interface.
ISL23711
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