MCP4131-502E/SN Microchip Technology, MCP4131-502E/SN Datasheet - Page 39
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MCP4131-502E/SN
Manufacturer Part Number
MCP4131-502E/SN
Description
IC POT DGTL SNGL 5K SPI 8SOIC
Manufacturer
Microchip Technology
Datasheet
1.MCP4131-502EP.pdf
(88 pages)
Specifications of MCP4131-502E/SN
Taps
129
Resistance (ohms)
5K
Number Of Circuits
1
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
8-SOIC (3.9mm Width)
Resistance In Ohms
5K
End To End Resistance
5kohm
No. Of Steps
129
Resistance Tolerance
± 20%
Supply Voltage Range
1.8V To 5.5V
Control Interface
Serial, SPI
No. Of Pots
Single
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MCP4131-502E/SN
Manufacturer:
MICROCHIP
Quantity:
12 000
5.3
Shutdown is used to minimize the device’s current
consumption. The MCP4XXX has two methods to
achieve this. These are:
•
•
The Hardware Shutdown pin is backwards compatible
with the MCP42XXX devices.
5.3.1
The SHDN pin is available on the dual potentiometer
devices. When the SHDN pin is forced active (V
• The P0A and P1A terminals are disconnected
• The P0W and P1W terminals are simultaneously
• The Serial Interface is NOT disabled, and all
The Hardware Shutdown pin mode does NOT corrupt
the values in the Volatile Wiper Registers nor the
TCON register. When the Shutdown mode is exited
(SHDN pin is inactive (V
• The device returns to the Wiper setting specified
• The TCON register bits return to controlling the
FIGURE 5-2:
Resistor Network Configuration.
© 2008 Microchip Technology Inc.
Hardware Shutdown Pin (SHDN)
Terminal Control Register (TCON)
connect to the P0B and P1B terminals,
respectively (see
Serial Interface activity is executed
by the Volatile Wiper value
terminal connection state
Shutdown
HARDWARE SHUTDOWN PIN
(SHDN)
A
B
Figure
Hardware Shutdown
IH
)):
5-2)
W
IL
MCP413X/415X/423X/425X
):
5.3.2
The Terminal Control (TCON) register is a volatile
register used to configure the connection of each
resistor network terminal pin (A, B, and W) to the
Resistor
Register
The RxHW bits forces the selected resistor network
into the same state as the SHDN pin. Alternate
low-power configurations may be achieved with the
RxA, RxW, and RxB bits.
5.3.3
Figure 5-3
RxHW bit signal interact to control the hardware
shutdown of each resistor network (independently).
Using the TCON bits allows each resistor network (Pot
0 and Pot 1) to be individually “shutdown” while the
hardware pin forces both resistor networks to be “shut-
down” at the same time.
FIGURE 5-3:
Interaction.
Note:
SHDN (from pin)
RxHW
(from TCON register)
4-2.
Network.
shows how the SHDN pin signal and the
TERMINAL CONTROL REGISTER
(TCON)
When the RxHW bit forces the resistor
network into the hardware SHDN state,
the state of the TCON register RxA, RxW,
and RxB bits is overridden (ignored).
When the state of the RxHW bit no longer
forces the resistor network into the hard-
ware SHDN state, the TCON register RxA,
RxW, and RxB bits return to controlling the
terminal connection state. In other words,
the RxHW bit does not corrupt the state of
the RxA, RxW, and RxB bits.
INTERACTION OF SHDN PIN AND
TCON REGISTER
This
RxHW bit and SHDN pin
register
To Pot x Hardware
Shutdown Control
DS22060B-page 39
is
shown
in