MCP4661-502E/ST Microchip Technology, MCP4661-502E/ST Datasheet - Page 59

• Manufacturer Part Number: MCP4661-502E/ST
• Description: IC DGTL POT 5K 256TAPS 14-TSSOP
• Manufacturer: Microchip Technology

Specifications of MCP4661-502E/ST

• Memory Type: Non-Volatile
• Taps: 257
• Resistance (ohms): 5K
• Number Of Circuits: 2
• Temperature Coefficient: 150 ppm/°C Typical
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 14-TSSOP
• Resistance In Ohms: 5K
• End To End Resistance: 5kohm
• Resistance Tolerance: ± 20%
• No. Of Steps: 257
• Supply Voltage Range: 2.7V To 5.5V
• Control Interface: I2C
• No. Of Pots: Dual
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

FIGURE 7-2:
FIGURE 7-3:
© 2008 Microchip Technology Inc.
Note:
S
S
0 1 0
0 1 0
Fixed
Address
Fixed
Address
Only functions when writing the volatile wiper registers (AD3:AD0 = 00h, 01h, and 04h)
or the TCON register
Control Byte
Control Byte
AD AD AD AD
3
1
I
1
I
2
2
2
WRITE Command
C Write Sequence.
C Continuous Volatile Wiper Write.
A2 A1 A0 0
Variable
Address
A2 A1 A0 0
Variable
Address
1
0
AD AD AD AD
3
0
Write bit
2
Write bit
WRITE Command
0 x D8 A
1
A
A
AD AD AD AD
0
3
AD AD AD AD
3
Device
Memory
Address
Device
Memory
Address
0
2
WRITE Command
2
MCP454X/456X/464X/466X
WRITE Command
0 x D8 A
1
D7 D6 D5 D4
1
0
0
Write Data bits
Command
Command
0
0
0 x D8 A
0 x D8 A
D7 D6 D5 D4
D3
Write Data bits
D2 D1 D0 A
D7 D6 D5 D4
Write “Data” bits
D7 D6 D5 D4
Write “Data” bits
D3
Write Data bits
Write Data bits
D2 D1 D0 A P
STOP bit
D3
D3
D2 D1 D0 A P
D2 D1 D0 A
DS22107A-page 59