MCP4332-503E/ST Microchip Technology, MCP4332-503E/ST Datasheet - Page 64

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MCP4332-503E/ST

Manufacturer Part Number
MCP4332-503E/ST
Description
IC DGTL POT QUAD 50K 14TSSOP
Manufacturer
Microchip Technology
Datasheet

Specifications of MCP4332-503E/ST

Taps
129
Resistance (ohms)
50K
Number Of Circuits
4
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
14-TSSOP
Resistance In Ohms
50K
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MCP4332-503E/ST
Manufacturer:
Microchip Technology
Quantity:
135
MCP433X/435X
8.2
The circuit in
TC1240A doubling charge pump. When the SHDN pin
is high, the TC1240A is off, and the level on the CS pin
is controlled by the PIC
pin.
When the SHDN pin is low, the TC1240A is on and the
V
pin to go higher than the voltage such that the PIC
MCU’s IO2 pin “clamps” at approximately V
FIGURE 8-3:
Generate the V
The circuit in
MCP402X Nonvolatile Digital Potentiometer Evaluation
Board (Part Number: MCP402XEV). This method
requires that the system voltage be approximately 5V.
This ensures that when the PIC10F206 enters a
brown-out condition, there is an insufficient voltage
level on the CS pin to change the stored value of the
wiper.
Potentiometer
(DS51546) contains a complete schematic.
GP0 is a general purpose I/O pin, while GP2 can either
be a general purpose I/O pin or it can output the internal
clock.
For the serial commands, configure the GP2 pin as an
input (high-impedance). The output state of the GP0
pin will determine the voltage on the CS pin (V
For high-voltage serial commands, force the GP0
output pin to output a high level (V
GP2 pin to output the internal clock. This will form a
charge pump and increase the voltage on the CS pin
(when the system voltage is approximately 5V).
DS22242A-page 64
OUT
PIC
voltage is 2 * V
®
MCU
Techniques to Force the CS Pin to
V
IO1
IO2
The
IHH
Figure 8-4
Figure 8-3
Evaluation
IHH
“MCP402X
DD
Voltage.
R
Using the TC1240A to
®
. The resistor R
1
SHDN
shows the method used on the
V
microcontrollers (MCUs) IO2
TC1240A
IN
shows a method using the
V
OUT
Board
C
Nonvolatile
OH
C+
2
C-
) and configure the
CS
User’s
1
allows the CS
MCP4XXX
DD
IL
.
C
or V
1
Guide”
Digital
IH
).
FIGURE 8-4:
Digital Potentiometer Evaluation Board
(MCP402XEV) implementation to generate the
V
8.3
Figure 8-5
the
Disconnecting the wiper allows the transistor input to
be taken to the bias voltage level (disconnecting A and
or B may be desired to reduce system current).
Disconnecting Terminal A modifies the transistor input
by the R
Disconnecting Terminal B modifies the transistor input
by the R
Common A and Common B connections could be
connected to V
FIGURE 8-5:
using Terminal Disconnects.
IHH
PIC10F206
Input
Input
voltage.
independent
Using Shutdown Modes
GP0
GP2
AW
BW
shows a possible application circuit where
Balance
rheostat value to the Common A. The
DD
rheostat value to the Common B.
B
A
C
and V
1
Common A
Common B
terminals
MCP4XXX Nonvolatile
Example Application Circuit
 2010 Microchip Technology Inc.
SS
W
.
R
Bias
1
could
C
To base
of Transistor
(or Amplifier)
2
CS
MCP4XXX
be
used.

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