CAT5132 查看數據表（PDF） - ON Semiconductor
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CAT5132 Datasheet PDF : 12 Pages
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CAT5132
VCC
V+
SDA
SCL
A0
CONTROL LOGIC AND
ADDRESS DECODE
127
RH
A1
128 TAP POSITION
DECODE CONTROL
7−BIT
NONVOLATILE
MEMORY
REGISTER
(DR)
7−BIT WIPER
CONTROL
REGISTER
(WCR)
0
RL
Figure 1. Block Diagram
RW
Table 1. PIN FUNCTION DESCRIPTION
Pin No. Pin Name
Description
1
SDA
Serial Data Input/Output − Bidirectional Serial Data pin used to transfer data into and out of the CAT5132.
This is an Open-Drain I/O and can be wire OR’d with other Open-Drain (or Open Collector) I/Os.
2
GND
Ground
3
VCC
Digital Supply Voltage (2.7 V to 5.5 V)
4
A1
Address Select Input to select slave address for I2C bus.
5
A0
Address Select Input to select slave address for I2C bus.
6
RH
High Reference Terminal for the potentiometer
7
RW
Wiper Terminal for the potentiometer
8
RL
Low Reference Terminal for the potentiometer
9
V+
Analog Supply Voltage for the potentiometer (+8.0 V to 16.0 V)
10
SCL
Serial Bus Clock input for the I2C Serial Bus. This clock is used to clock all data transfers into and out of
the CAT5132
Table 2. ABSOLUTE MAXIMUM RATINGS
Rating
Value
Unit
Temperature Under Bias
−55 to +125
C
Storage Temperature
−65 to +150
C
Voltage on any SDA, SCL, A0 & A1 pins with respect to Ground (Note 4)
Voltage on RH, RL & RW pins with respect to Ground
VCC with respect to Ground
V+ with respect to Ground
−0.3 to VCC + 0.3
V
V+
−0.3 to +6
V
−0.3 to +16.5
V
Wiper Current (10 sec)
6
mA
Lead Soldering temperature (10 sec)
+300
C
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
4. Latch-up protection is provided for stresses up to 100 mA on address and data pins from −0.3 V to VCC +0.3 V.
Table 3. RECOMMENDED OPERATING CONDITIONS
Rating
VCC
V+
Operating Temperature Range
Value
Unit
+2.7 to +5.5
V
+8.0 to +16
V
−40 to +85
C
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