MCP4251-103E/SL Microchip Technology, MCP4251-103E/SL Datasheet - Page 56

• Manufacturer Part Number: MCP4251-103E/SL
• Description: IC DGTL POT 10K 2CH 14SOIC
• Manufacturer: Microchip Technology

Specifications of MCP4251-103E/SL

• Package / Case: 14-SOIC (3.9mm Width), 14-SOL
• Taps: 257
• Resistance (ohms): 10K
• Number Of Circuits: 2
• Temperature Coefficient: 150 ppm/°C Typical
• Memory Type: Volatile
• Interface: SPI Serial
• Voltage - Supply: 1.8 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Resistance In Ohms: 10K
• Number Of Pots: Dual
• Taps Per Pot: 256
• Resistance: 10 KOhms
• Wiper Memory: Volatile
• Digital Interface: Serial (SPI)
• Operating Supply Voltage: 2.5 V or 3.3 V or 5 V
• Supply Current: 1 mA
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 1.8 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: MCP4251-103-E/SL; MCP4251-103-E/SL

MCP413X/415X/423X/425X
7.7.2
Continuous Increments are possible only when writing
to the wiper registers.
Figure 7-7
for three continuous writes. The writes do not need to
be to the same volatile memory address.
When executing an continuous Increment commands,
the selected wiper will be altered from n to n+1 for each
Increment command received. The wiper value will
increment up to 100h on 8-bit devices and 80h on 7-bit
devices. After the wiper value has reached Full-Scale
(8-bit =100h, 7-bit =80h), the wiper value will not be
incremented further. If the Wiper register has a value
between 101h and 1FFh, the Increment command is
disabled.
FIGURE 7-7:
DS22060B-page 56
SDI
SDO
A
D
3
1
1
1
1
Note 1: Only functions when writing the volatile wiper registers (AD3:AD0) 0h and 1h.
(INCR COMMAND (n+1) )
shows a Continuous Increment sequence
CONTINUOUS INCREMENTS
A
D
2
1
1
1
1
COMMAND BYTE
2: Valid Address/Command combination.
3: Invalid Address/Command combination.
4: If an Error Condition occurs (CMDERR = L), all following SDO bits will be low until the CMDERR
D
A
1
1
1
1
1
condition is cleared (the CS pin is forced to the inactive state).
D
A
0
1
1
1
1
Continuous Increment Command - SDI and SDO States.
0
1
1
1
1
1
1 1* 1
1
1
1
X
0
1
1
X
0
1
1
D
A
3
1
0
1
1
(INCR COMMAND (n+2) )
D
A
2
1
0
1
1
COMMAND BYTE
D
A
1
1
0
1
1
A
D
0
1
0
1
1
0
1
0
1
1
1
1 1* 1
0
1
1
Increment commands can be sent repeatedly without
raising CS until a desired condition is met. The value in
the Volatile Wiper register can be read using a Read
Command.
When executing a continuous command string, The
Increment command can be followed by any other valid
command.
The wiper terminal will move after the command has
been received (8th clock).
After the wiper is incremented to the desired position,
the CS pin should be forced to V
unexpected transitions (on the SCK pin do not cause
the wiper setting to change). Driving the CS pin to V
should occur as soon as possible (within device
specifications) after the last desired increment occurs.
X
0
0
1
X
0
0
1
D
A
3
1
0
0
1
(INCR COMMAND (n+3) )
A
D
2
1
0
0
1
COMMAND BYTE
A
D
1
1
0
0
1
A
D
0
1
0
0
1
© 2008 Microchip Technology Inc.
0
1
0
0
1
1 1* 1 Note 1, 2
1
1
0
0
X
0
0
0
IH
X
0 Note 3, 4
0 Note 3, 4
0 Note 3, 4
to ensure that
IH