MCP4013 Microchip Technology, MCP4013 Datasheet - Page 28

• Manufacturer Part Number: MCP4013
• Description: Low-Cost 64-Step Volatile Digital POT
• Manufacturer: Microchip Technology

MCP4011/2/3/4
4.2
When the device powers up (rising V
Trip Point Voltage (V
restored.
the wiper on POR/BOR.
TABLE 4-1:
While V
may not meet the data sheet specifications (see
Figure
device may be capable of incrementing or decrement-
ing, if a valid command is detected on the CS and U/D
pins.
FIGURE 4-2:
DS21978C-page 28
-202
-502
-103
-503
Package
Code
4-2). The wiper state may be unknown. Also, the
DD
Power-up
Table 4-1
V
1.8V
V
V
< V
DD
TP
SS
Mid-scale
Mid-scale
Mid-scale
Mid-scale
Default
Setting
min
Wiper
POR
DEFAULT POR WIPER
SETTING SELECTION
shows the default value loaded into
(1.8V), the electrical performance
TP
Power-up and Brown-out.
)), the “default” wiper setting is
Wiper
Code
1Fh
1Fh
1Fh
1Fh
DD
R
crosses the
10.0 kΩ
50.0 kΩ
Typical
AB
2.1 kΩ
5.0 kΩ
POR Trip Point (on Rising V
Value
Outside Device Operation
4.3
If the device V
voltage, care must be taken to ensure that the CS and
U/D pins do not “create” any of the serial commands.
When the device V
electrical performance may not meet the data sheet
specifications (see
unknown. Also, the device may be capable of
incrementing or decrementing, if a valid command is
detected on the CS and U/D pins.
When the device voltage rises from below the power-
up trip point (V
range, the wiper state will be forced to the default POR
wiper setting (see
4.4
The serial interface is inactive any time the CS pin is at
V
IH
and all write cycles are completed.
DD
)
Brown Out
Serial Interface Inactive
Wiper Forced to Default POR Setting
DD
TP
Table
) into the valid operation voltage
Figure
is below the specified minimum
DD
© 2006 Microchip Technology Inc.
drops below V
4-1).
4-2). The wiper state may be
MIN
(1.8V), the