CAT5271ZI-50-GT3 ON Semiconductor, CAT5271ZI-50-GT3 Datasheet - Page 12

• Manufacturer Part Number: CAT5271ZI-50-GT3
• Description: IC POT DPP 50K 256TAP 10MSOP
• Manufacturer: ON Semiconductor

Specifications of CAT5271ZI-50-GT3

• Package / Case: 10-MSOP, Micro10™, 10-uMAX, 10-uSOP
• Mounting Type: Surface Mount
• Voltage - Supply: 2.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Temperature Coefficient: 100 ppm/°C Typical
• Interface: I²C, 2-Wire Serial
• Resistance In Ohms: 50K
• Number Of Circuits: 2
• Memory Type: Volatile
• Taps: 256
• Number Of Pots: Dual
• Taps Per Pot: 256
• Resistance: 50 KOhms
• Wiper Memory: Volatile
• Digital Interface: I2C
• Operating Supply Voltage: 2.7 V to 5.5 V
• Supply Current: 0.3 uA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Description/function: Dual 256-Tap Digital Potentiometer
• Mounting Style: SMD/SMT
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2.7 V
• Tolerance: 20 %
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Legend
Legend
SDA
S
A
R
SDA
T
T
Table 10. CAT5271 Write
Table 11. CAT5271 READ
Table 12. CAT5273 Write
Table 13. CAT5273 READ
SDA
S =
P =
A =
D =
R =
W =
S =
P =
A =
D =
R =
W =
A0 =
S
S
SDA
R
S
A
R
S
T
A
T
T
T
S
A
R
S
T
T
S
0
0
0
0
Slave Address Byte
1 0
1 0
1
1
Slave Address Byte
Slave Address Byte
0
0
0
0
Slave Address Byte
0
0
Slave Address Byte
1
1
Slave Address Byte
1
1
1 1
Slave Address Byte
1 1
Slave Address Byte
1
1
Start
Stop
Acknowledge
Data bit
Read (bit is 1 for Read instruction)
Write (bit is 0 for Write instruction)
Start
Stop
Acknowledge
Data bit
Read (bit is 1 for Read instruction)
Write (bit is 0 for Write instruction)
Potentiometer Channel (1 or 2) Select Bit
0
0
0
0
1
1 AD1 AD0
AD1 AD0
1
1 1
1
1
1
1
1 AD1 AD0
1
1
1
AD1 AD0
1
R/W
1
1 1
W
R/W
W
1
A
C
K
R/W
A
R/W
A
C
K
R
A
R
A0
A0
A0
A0
A
C
K
A
C
A
K
A
SD
SD
SD
SD
Instruction Byte
D7
D7
D7
D7
Instruction Byte
Instruction Byte
X
X
Instruction Byte
X
X
http://onsemi.com
X
X
D6
D6
X
D6
X
D6
X
X
X
X
X X X
X
12
X X X
D5
D5
X
D5
D5
X
X
X
A0 =
SD =
X =
SD =
X =
AD1, AD0 =
X
D4
D4
Data Byte
Data Byte
C
A
K
D4
D4
Data Byte
A
Data Byte
A
C
K
A
D7
D7
D7
D7
D3
D3
D3
D3
D6
D6
D6
D6
Potentiometer Channel (1 or 2) Select Bit
Shut Down:
0: normal operation
1: wiper is parked at B terminal and
terminal A is open circuit.
Don’t Care
Shut Down:
0: normal operation
1: wiper is parked at B terminal
and terminal A is open circuit.
Don’t Care
Bits that must match the logic levels
on pins AD1 and AD0
D2
D2
D2
D5
D2
D5
D5
D5
Data Byte
D4
Data Byte
D4
Data Byte
Data Byte
D4
D1
D1
D4
D1
D1
D3
D3
D3
D3
D0
D0
D0
D0
D2
D2
D2
D2
N
A
C
K
D1
A
D1
D1
D1
N
A
C
K
A
D0
D0
D0
D0
S
O
P
T
P
O
P
S
T
P
A
C
A
A
K
A
C
K
O
O
S
T
P
S
T
P
P
P