MCP4252-103E/UN Microchip Technology, MCP4252-103E/UN Datasheet - Page 53

• Manufacturer Part Number: MCP4252-103E/UN
• Description: IC RHEOSTAT 10K 2CH 10MSOP
• Manufacturer: Microchip Technology

Specifications of MCP4252-103E/UN

• 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
• Package / Case: 10-MSOP, Micro10™, 10-uMAX, 10-uSOP
• Resistance In Ohms: 10K
• End To End Resistance: 10kohm
• Track Taper: Linear
• No. Of Steps: 257
• Resistance Tolerance: ± 20%
• Supply Voltage Range: 1.8V To 5.5V
• Control Interface: Serial, SPI
• No. Of Pots: Dual
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: MCP4252-103-E/UN; MCP4252-103-E/UN

7.6
The Read command is a 16-bit command. The format
of the command is shown in
The first 6-bits of the Read command determine the
address and the command. The 7th clock will output
the CMDERR bit on the SDO pin. The remaining
9-clocks the device will transmit the 9 data bits (D8:D0)
of the specified address (AD3:AD0).
Figure 7-4
Read command.
FIGURE 7-4:
© 2008 Microchip Technology Inc.
SDI
SDO
Note:
A
D
3
1
1
Read Data
Normal and High Voltage
shows the SDI and SDO information for a
The High Voltage Read Data command is
supported for compatability with system
that also support MCP414X/416X/424X/
426X devices.
D
A
2
1
1
COMMAND BYTE
D
A
1
1
1
D
A
0
1
1
Read Command - SDI and SDO States.
1
1
1
Figure
1
1
1
X
1
0
7-4.
D
X
8
0
D
X
7
0
D
X
6
0
READ DATA
X
D
5
0
MCP413X/415X/423X/425X
DATA BYTE
X
D
4
0
X
D
3
0
X
D
2
0
7.6.1
The read operation requires that the CS pin be in the
active state (V
the inactive state (V
(V
Byte and Data Byte) is then clocked in on the SCK and
SDI pins. The SDO pin starts driving data on the 7th bit
(CMDERR bit) and the addressed data comes out on
the 8th through 16th clocks.
Figure 6-6
Figure 6-5
waveforms when the SDI and SDO signals are
multiplexed on the same pin. For additional information
on the multiplexing of these signals, refer to
Section 6.1.3 “SDI/SDO”.
D
X
1
0
IL
or V
D
X
0
0 Attempted Memory Read of Reserved
IHH
Valid Address/Command combination
Memory location.
show possible waveforms for a single read.
). The 16-bit Read Command (Command
SINGLE READ
and
IL
or V
Figure 6-6
IHH
IH
) and is driven to the active state
). Typically, the CS pin will be in
show the single read
Figure 6-3
DS22060B-page 53
through