AD5241BRU1M Analog Devices Inc, AD5241BRU1M Datasheet - Page 5

• Manufacturer Part Number: AD5241BRU1M
• Description: IC DGTL POT 256POS 14-TSSOP
• Manufacturer: Analog Devices Inc

Specifications of AD5241BRU1M

• Rohs Status: RoHS non-compliant
• Taps: 256
• Resistance (ohms): 1M
• Number Of Circuits: 1
• Temperature Coefficient: 30 ppm/°C Typical
• Memory Type: Volatile
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 2.7 V ~ 5.5 V, ±2.3 V ~ 2.7 V
• Operating Temperature: -40°C ~ 105°C
• Mounting Type: Surface Mount
• Package / Case: 14-TSSOP
• Resistance In Ohms: 1.00M

TIMING DIAGRAMS
Data of AD5241/AD5242 is accepted from the I
Table 2.
S
where:
S = start condition
P = stop condition
A = acknowledge
X = don’t care
AD1, AD0 = Package pin programmable address bits. Must be matched with the logic states at Pins AD1 and AD0.
R/ W = Read enable at high and output to SDA. Write enable at low.
A /B = RDAC subaddress select; 0 for RDAC1 and 1 for RDAC2.
RS = Midscale reset, active high.
SD = Shutdown in active high. Same as SHDN except inverse logic.
O
D7, D6, D5, D4, D3, D2, D1, D0 = data bits.
START BY
1
MASTER
, O
0
SDA
SCL
2
= Output logic pin latched values
1
0
Slave Address Byte
1
1
0
START BY
1
SDA
SCL
MASTER
1
SLAVE ADDRESS BYTE
AD1
SDA
SCL
0
FRAME 1
P
1
AD0
t
1
1
0
1
Figure 5. Reading Data from a Previously Selected RDAC Register in Write Mode
S
AD1
R/ W
t
2
1
AD0
SLAVE ADDRESS BYTE
A
0
t
R/W
3
FRAME 1
2
ACK BY
AD5241
A /B
C bus in the following serial format.
1
Figure 4. Writing to the RDAC Serial Register
9
t
8
t
8
1
A/B
RS SD
1
Figure 3. Detail Timing Diagram
AD1
t
6
RS
Instruction Byte
AD0
Rev. C | Page 5 of 20
SD
t
INSTRUCTION BYTE
R/W
9
t
O
4
1
ACK BY
O
AD5241
FRAME 2
1
O
9
2
O
2
DATA BYTE FROM PREVIOUSLY SELECTED
D7
1
X
t
7
X
RDAC REGISTER IN WRITE MODE
D6
X
X
D5
X
S
X
ACK BY
AD5241
D4
t
5
FRAME 2
A
9
t
2
D3
D7
D7
1
D2
D6
D6
D1
D5
D5
D0
NO ACK BY
MASTER
D4
DATA BYTE
FRAME 3
Data Byte
D4
9
P
STOP BY
MASTER
D3
t
10
AD5241/AD5242
D3
D2
D1
D2
D0
D1
ACK BY
AD5241
9
STOP BY
MASTER
D0
A
P