X9C503P Intersil, X9C503P Datasheet - Page 6
![no-image](/images/manufacturer_photos/0/3/341/intersil_sml.jpg)
X9C503P
Manufacturer Part Number
X9C503P
Description
IC DIGITAL POT 50K 100TP 8DIP
Manufacturer
Intersil
Series
XDCP™r
Datasheet
1.X9C503SIZT1.pdf
(10 pages)
Specifications of X9C503P
Taps
100
Resistance (ohms)
50K
Number Of Circuits
1
Temperature Coefficient
300 ppm/°C Typical
Memory Type
Non-Volatile
Interface
Up/Down (3-Wire)
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Through Hole
Package / Case
8-DIP (0.300", 7.62mm)
Resistance In Ohms
50K
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
X9C503P
Manufacturer:
XICOR
Quantity:
5 510
Part Number:
X9C503P
Manufacturer:
XICOR
Quantity:
20 000
Company:
Part Number:
X9C503PI
Manufacturer:
BOSCH
Quantity:
23
Company:
Part Number:
X9C503PIZ
Manufacturer:
Intersil
Quantity:
1 800
Company:
Part Number:
X9C503PZ
Manufacturer:
Intersil
Quantity:
38
AC Timing Diagram
Pin Descriptions
R
The high (V
ISLX9C102, X9C103, X9C104, X9C503 are equivalent to
the fixed terminals of a mechanical potentiometer. The
minimum voltage is -5V and the maximum is +5V. The
terminology of V
position of the terminal in relation to wiper movement
direction selected by the U/D input and not the voltage
potential on the terminal.
R
V
movable terminal of a mechanical potentiometer. The
position of the wiper within the array is determined by the
control inputs. The wiper terminal series resistance is typically
40Ω.
Up/Down (U/D)
The U/D input controls the direction of the wiper movement
and whether the counter is incremented or decremented.
Increment (INC)
The INC input is negative-edge triggered. Toggling INC will
move the wiper and either increment or decrement the
counter in the direction indicated by the logic level on the
U/D input.
Chip Select (CS)
The device is selected when the CS input is LOW. The
current counter value is stored in non-volatile memory when
CS is returned HIGH while the INC input is also HIGH. After
the store operation is complete the ISLX9C102, X9C103,
X9C104, X9C503 device will be placed in the low power
standby mode until the device is selected once again.
W
W
H
/V
/R
/V
H
W
W
NOTE: MI REFERS TO THE MINIMUM INCREMENTAL CHANGE IN THE V
and R
is the wiper terminal, and is equivalent to the
H
INC
U/D
CS
V
/R
W
L
H
/V
H
) and low (V
/R
L
H
t
CI
and V
t
IW
L
/R
L
/R
6
L
L
references the relative
) terminals of the
t
IL
t
ID
t
CYC
X9C102, X9C103, X9C104, X9C503
t
IH
t
DI
t
IC
MI
(NOTE)
W
Principles of Operation
There are three sections of the X9C102, X9C103, ISL9C104
and ISL9C503: the input control, counter and decode section;
the non-volatile memory; and the resistor array. The input
control section operates just like an up/down counter. The
output of this counter is decoded to turn on a single electronic
switch connecting a point on the resistor array to the wiper
output. Under the proper conditions, the contents of the
counter can be stored in non-volatile memory and retained for
future use. The resistor array is comprised of 99 individual
resistors connected in series. At either end of the array and
between each resistor is an electronic switch that transfers the
potential at that point to the wiper.
The wiper, when at either fixed terminal, acts like its
mechanical equivalent and does not move beyond the last
position. That is, the counter does not wrap around when
clocked to either extreme.
The electronic switches on the device operate in a
“make-before-break” mode when the wiper changes tap
positions. If the wiper is moved several positions, multiple
taps are connected to the wiper for t
change). The R
reduced by a significant amount if the wiper is moved
several positions.
When the device is powered-down, the last wiper position
stored will be maintained in the non-volatile memory. When
power is restored, the contents of the memory are recalled
and the wiper is reset to the value last stored.
The internal charge pump allows a wide range of voltages
(from -5V to 5V) applied to XDCP terminals yet given a
convenience of single power supply. The typical charge
pump noise of 20mV at 850kHz should be taken in
consideration when designing an application circuit.
OUTPUT DUE TO A CHANGE IN THE WIPER POSITION.
t
CPH
TOTAL
t
F
value for the device can temporarily be
90%
10%
90%
IW
(INC to V
t
R
W
/R
July 20, 2009
W
FN8222.3