AD5254BRUZ50 Analog Devices Inc, AD5254BRUZ50 Datasheet - Page 17

• Manufacturer Part Number: AD5254BRUZ50
• Description: IC POT DGTL QUAD 50K 20TSSOP
• Manufacturer: Analog Devices Inc

Specifications of AD5254BRUZ50

• Memory Type: Non-Volatile
• Temperature Coefficient: 650 ppm/°C Typical
• Taps: 256
• Resistance (ohms): 50K
• Number Of Circuits: 4
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 2.7 V ~ 5.5 V, ±2.25 V ~ 2.75 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-TSSOP
• Resistance In Ohms: 50K
• End To End Resistance: 50kohm
• Track Taper: Linear
• Resistance Tolerance: ± 30%
• No. Of Steps: 256
• No. Of Pots: Quad
• Potentiometer Ic Case: RoHS Compliant
• Supply Voltage Range: ± 2.25V To ± 2.75V
• Control Interface: I2C, Serial
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AD5254EVAL - BOARD EVAL FOR AD5254
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

S = start condition
P = stop condition
A = acknowledge (SDA low)
A = not acknowledge (SDA high)
AD1, AD0 = I
R/ W = read enable bit at logic high; write enable bit at logic low
CMD/ REG = command enable bit at logic high; register access bit at logic low
C3, C2, C1, C0 = command bits
A2, A1, A0 = RDAC/EEMEM register addresses
From Master to Slave
From Slave to Master
S
2
C device address bits, must match with the logic states at Pins AD1, AD0
SLAVE ADDRESS
S
0
1
SLAVE ADDRESS
Figure 29. RDAC Current Read (Restricted to Previously Selected Address Stored in the Register)
0
0 WRITE
1
0
1
S
A
A
D
1
0
RDAC SLAVE ADDRESS
A
D
0
INSTRUCTIONAL AND
1
1 READ
Figure 31. RDAC Quick Command Write (Dummy Write)
1
0
ADDRESS
A
1
Figure 30. RDAC or EEMEM Random Read
1
A
D
1
RDAC_N OR EEMEM_N
A
D
0
0 WRITE
Rev. B | Page 17 of 32
REGISTER DATA
REPEATED START
0
A
A
S
1 CMD
CMD/
REG
(N BYTES + ACKNOWLEDGE)
SLAVE ADDRESS
C
3
C
2
C
1
C
A
0
A
2
RDAC_N + 1 OR EEMEM_N + 1
1 READ
A
1
REGISTER DATA
1
A
0
A
A
P
(N BYTES + ACKNOWLEDGE)
EEMEM DATA
RDAC OR
A
AD5253/AD5254
P
A/A
P