MCP4341-502E/ST Microchip Technology, MCP4341-502E/ST Datasheet - Page 62
![IC DGTL POT QUAD 5K 20TSSOP](/photos/29/2/290212/tssop20_sml.jpg)
MCP4341-502E/ST
Manufacturer Part Number
MCP4341-502E/ST
Description
IC DGTL POT QUAD 5K 20TSSOP
Manufacturer
Microchip Technology
Series
WiperLock™r
Datasheet
1.MCP4361-503EML.pdf
(80 pages)
Specifications of MCP4341-502E/ST
Package / Case
20-TSSOP
Taps
129
Resistance (ohms)
5K
Number Of Circuits
4
Temperature Coefficient
150 ppm/°C Typical
Memory Type
Non-Volatile
Interface
SPI Serial
Voltage - Supply
2.7 V ~ 5.5 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Resistance In Ohms
5K
Number Of Pots
Quad
Taps Per Pot
129
Resistance
5 KOhms
Wiper Memory
Non Volatile
Buffered Wiper
Buffered
Digital Interface
SPI
Operating Supply Voltage
2.7 V to 5.5 V
Supply Current
450 uA
Maximum Operating Temperature
+ 125 C
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Supply Voltage (max)
5.5 V
Supply Voltage (min)
2.7 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MCP4341-502E/ST
Manufacturer:
Microchip
Quantity:
329
MCP434X/436X
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® microcontrollers (MCUs) IO2
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
Evaluation Board (Part Number: MCP402XEV). This
method
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. The MCP402X Non-volatile
Digital Potentiometer Evaluation Board User’s Guide
(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).
DS22233A-page 62
OUT
PIC MCU
voltage is 2 * V
Techniques to Force the CS Pin to
V
IO1
IO2
requires
IHH
Figure 8-4
Non-volatile
Figure 8-3
IHH
that
DD
Voltage.
R
Using the TC1240A to
. The resistor R
1
SHDN
shows the method used on the
V
TC1240A
IN
shows a method using the
V
the
OUT
Digital
system
C
OH
C+
2
C-
) and configure the
CS
1
Potentiometer
allows the CS
MCP4XXX
voltage
IL
DD
or V
.
C
1
IH
).
be
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 Non-volatile
Example Application Circuit
© 2009 Microchip Technology Inc.
SS
W
.
R
Bias
1
could
C
To base
of Transistor
(or Amplifier)
2
CS
MCP4XXX
be
used.