MCP4332-503E/ST Microchip Technology, MCP4332-503E/ST Datasheet - Page 63

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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

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Part Number
Manufacturer
Quantity
Price
Part Number:
MCP4332-503E/ST
Manufacturer:
Microchip Technology
Quantity:
135
8.0
Digital potentiometers have a multitude of practical
uses in modern electronic circuits. The most popular
uses include precision calibration of set point thresh-
olds, sensor trimming, LCD bias trimming, audio atten-
uation, adjustable power supplies, motor control
overcurrent trip setting, adjustable gain amplifiers and
offset trimming. The MCP433X/435X devices can be
used to replace the common mechanical trim pot in
applications where the operating and terminal voltages
are within CMOS process limitations (V
5.5V).
8.1
All inputs that would be used to interface to a host
controller support high voltage on their input pin. This
allows the MCP43XX device to be used in split power
rail applications.
An example of this is a battery application where the
PIC
(4.8V) and the MCP43XX device is powered by the
3.3V regulated voltage.
For SPI applications, these inputs are:
• CS
• SCK
• SDI (or SDI/SDO)
• RESET
Figure 8-1
rail systems. In this system, the MCP43XX interface
input signals need to be able to support the PIC MCU
output high voltage (V
In Example #1
input signals need to be able to support the PIC MCU
output high voltage (V
becomes too large, then the customer may be required
to do some level shifting due to MCP43XX V
related to host controller V
In Example #2
input signals need to be able to support the lower
voltage of the PIC MCU output high voltage level (V
Table 8-1
voltage
specifications. So this PIC MCU operating at 3.3V will
drive a V
at 5.5V, the V
signals meet specifications.
 2010 Microchip Technology Inc.
®
MCU is directly powered by the battery supply
APPLICATIONS EXAMPLES
Split Rail Applications
OH
shows an example PIC microcontroller I/O
through
specifications
at 2.64V, and for the MCP43XX operating
IH
(Figure
(Figure
is 2.47V. Therefore, the interface
Figure 8-2
OH
OH
8-1), the MCP43XX interface
8-2), the MCP43XX interface
).
). If the split rail voltage delta
IH
and
levels.
show three example split
the
DD
MCP43XX
= 2.7V to
OH
levels
OH
).
FIGURE 8-1:
System 1.
FIGURE 8-2:
System 2.
TABLE 8-1:
5.5
5.0
4.5
3.3
3.0
2.7
Note 1:
V
DD
PIC
5V
®
2:
3:
4.4
4.0
3.6
2.64 2.64 4.5
2.4
2.16 2.16 5.5
PIC
V
Voltage
Regulator
MCU
3V
IH
V
V
V
V
V
V
V
V
The only MCP4XXX output pin is SDO,
which is open-drain (or open-drain with
internal pull-up) with high voltage support
®
PIC
SDO
OH
OL
IH
IL
OH
OL
IH
IL
Voltage
Regulator
SCK
MCU
SDI
4.4
4.0
3.6
2.4
MCP433X/435X
(1)
CS
I/O
V
maximum = 0.2 * V
maximum = 0.2 * V
minimum = 0.8 * V
minimum = 0.45 * V
maximum = 0.6V
maximum = 0.2 * V
®
minimum = 0.8 * V
minimum (SDA only) =;
OH
SDO
V
SCK
MCU
SDI
CS
OH
I/O
2.7
3.0
3.3
5.0
V
Example Split Rail
Example Split Rail
DD
– V
MCP4XXX
3V
IH
1.215 —
1.35
1.485 —
2.025 —
2.25
2.475 —
V
COMPARISONS
IH
DD
DD
DD
DD
MCP4XXX
(2)
DD
DD
SDI
V
CS
SCK
RESET
SDO
DS22242A-page 63
;
;
OH
;
(3)
(3)
(3)
(3)
(3)
(3)
;
MCP4XXX
SDI
CS
SCK
RESET
SDO
Comment
5V

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