X9C103PI [XICOR]
E2POT⑩ Nonvolatile Digital Potentiometer; E2POT⑩非易失性数字电位计
| 型号： | X9C103PI |
| 厂家： | 
XICOR INC. |
| 描述： | E2POT⑩ Nonvolatile Digital Potentiometer |
| 文件： | 总15页 (文件大小：85K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
APPLICATION NOTES
A V A I L A B L E
AN42 • AN44–48 • AN50 • AN52 • AN53 • AN71 • AN73
Terminal Voltage ±5V, 100 Taps
X9C102/103/104/503
E2POT™ Nonvolatile Digital Potentiometer
FEATURES
DESCRIPTION
• Compatible with X9102/103/104/503
• Low Power CMOS
TheXicorX9C102/103/104/503isasolidstatenonvola-
tile potentiometer and is ideal for digitally controlled
resistance trimming.
—V
= 5V
CC
—Active Current, 3mA Max
—Standby Current, 500µA Max
• 99 Resistive Elements
TheX9C102/103/104/503isaresistorarraycomposedof
99 resistive elements. Between each element and at
either end are tap points accessible to the wiper element.
The position of the wiper element is controlled by the CS,
U/D, and INC inputs. The position of the wiper can be
stored in nonvolatile memory and then be recalled upon a
subsequent power-up operation.
—Temperature Compensated
—± 20% End to End Resistance Range
• 100 Wiper Tap Points
—Wiper Positioned via Three-Wire Interface
—Similar to TTL Up/Down Counter
—Wiper Position Stored in Nonvolatile
Memory and Recalled on Power-Up
• 100 Year Wiper Position Data Retention
• X9C102 = 1KΩ
The resolution of the X9C102/103/104/503 is equal to
the maximum resistance value divided by 99. As an
example, for the X9C503 (50KΩ) each tap point repre-
sents 505Ω.
• X9C103 = 10KΩ
All Xicor nonvolatile memories are designed and tested
for applications requiring extended endurance and data
retention.
• X9C503 = 50KΩ
• X9C104 = 100KΩ
FUNCTIONAL DIAGRAM
U/D
INC
CS
7-BIT
UP/DOWN
COUNTER
99
V
H
98
97
96
7-BIT
NONVOLATILE
MEMORY
ONE
OF
ONE-
HUNDRED
DECODER
TRANSFER
GATES
RESISTOR
ARRAY
2
1
0
STORE AND
RECALL
CONTROL
CIRCUITRY
V
CC
GND
V
V
L
W
3863 FHD F01
E2POT™ is a trademark of Xicor, Inc.
©Xicor, Inc. 1994, 1995 Patents Pending
3863-2.4 9/18/96 T2/C0/D0 SH
Characteristics subject to change without notice
1
X9C102/103/104/503
PIN DESCRIPTIONS
PIN CONFIGURATION
V and V
H
L
The high (V ) and low (V ) terminals of the X9C102/103/
H
L
DIP/SOIC
104/503 are equivalent to the fixed terminals of a
mechanical potentiometer. The minimum voltage is –5V
and the maximum is +5V. It should be noted that the
INC
U/D
1
2
3
4
8
7
6
5
V
CC
CS
X9C102/
103/104/503
terminology of V and V references the relative position
L
H
V
H
V
L
of the terminal in relation to wiper movement direction
selected by the U/D input and not the voltage potential on
the terminal.
V
V
SS
W
3863 FHD F02.2
V
W
V
W
is the wiper terminal, equivalent to the 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.
PIN NAMES
Symbol
Description
V
V
V
V
V
High Terminal
Wiper Terminal
Low Terminal
Ground
H
Up/Down (U/D)
W
L
The U/D input controls the direction of the wiper
movement and whether the counter is incremented or
decremented.
SS
CC
Supply Voltage
Up/Down Input
Increment Input
Chip Select Input
No Connect
Increment (INC)
U/D
INC
CS
The INC input is negative-edge triggered. Toggling INC
will move the wiper and either increment or decrement
thecounterinthedirectionindicatedbythelogiclevelon
the U/D input.
NC
3863 PGM T01
Chip Select (CS)
The device is selected when the CS input is LOW. The
current counter value is stored in nonvolatile memory
when CS is returned HIGH while the INC input is also
HIGH.AfterthestoreoperationiscompletetheX9C102/
103/104/503 will be placed in the low power standby
mode until the device is selected once again.
2
X9C102/103/104/503
DEVICE OPERATION
OPERATION NOTES
There are three sections of the X9C102/103/104/503:
the input control, counter and decode section; the non-
volatilememory;andtheresistorarray.Theinputcontrol
section operates just like an up/down counter. The
output of this counter is decoded to turn on a single
electronicswitchconnectingapointontheresistorarray
to the wiper output. Under the proper conditions the
contents of the counter can be stored in nonvolatile
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.
ThesystemmayselecttheX9C102/103/104/503, move
the wiper, and deselect the device without having to
store the latest wiper, position in nonvolatile memory.
The wiper movement is performed as described above;
once the new position is reached, the system would the
keep INC LOW while taking CS HIGH. The new wiper
position would be maintained until changed by the
system or until a power-down/up cycle recalled the
previously stored data.
This would allow the system to always power-up to a
preset value stored in nonvolatile memory; then during
system operation minor adjustments could be made.
The adjustments might be based on user preference:
system parameter changes due to temperature drift,
etc...
TheINC,U/DandCSinputscontrolthemovementofthe
wiper along the resistor array. With CS set LOW the
X9C102/103/104/503 is selected and enabled to
respond to the U/D and INC inputs. HIGH to LOW
transitions on INC will increment or decrement
(depending on the state of the U/D input) a seven-bit
counter. The output of this counter is decoded to
select one of one-hundred wiper positions along the
resistive array.
The state of U/D may be changed while CS remains
LOW. This allows the host system to enable the
X9C102/103/104/503 and then move the wiper up and
down until the proper trim is attained.
T
/R
IW TOTAL
The electronic switches on the X9C102/103/104/503
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
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.
t
IW
(INCtoV change). TheR
valueforthedevice
W
TOTAL
can temporarily be reduced by a significant amount
if the wiper is moved several positions.
The value of the counter is stored in nonvolatile memory
whenever CS transistions HIGH while the INC input is
also HIGH.
R
TOTAL
with V Removed
CC
Theendtoendresistanceofthearraywillfluctuateonce
is removed.
When the X9C102/103/104/503 is powered-down, the
last counter position stored will be maintained in the
nonvolatile memory. When power is restored, the con-
tentsofthememoryarerecalledandthecounterisreset
to the value last stored.
V
CC
SYMBOL TABLE
WAVEFORM
INPUTS
OUTPUTS
Must be
steady
Will be
steady
May change
from LOW
to HIGH
Will change
from LOW
to HIGH
May change
from HIGH
to LOW
Will change
from HIGH
to LOW
Don’t Care:
Changes
Allowed
Changing:
State Not
Known
N/A
Center Line
is High
Impedance
3
X9C102/103/104/503
ABSOLUTE MAXIMUM RATINGS*
*COMMENT
Temperature under Bias .................. –65°C to +135°C
Storage Temperature ....................... –65°C to +150°C
Stresses above those listed under “Absolute Maximum
Ratings” may cause permanent damage to the device.
This is a stress rating only and the functional operation
of the device at these or any other conditions above
those listed in the operational sections of this specifica-
tion is not implied. Exposure to absolute maximum
ratingconditionsforextendedperiodsmayaffectdevice
reliability.
Voltage on CS, INC, U/D and V
CC
with Respect to V ............................... –1V to +7V
SS
L
Voltage on V and V
H
Referenced to V
................................. –8V to +8V
SS
∆V = |V –V |
H
L
X9C102............................................................. 4V
X9C103, X9C503, and X9C104...................... 10V
Lead Temperature (Soldering, 10 seconds).... +300°C
Wiper Current..................................................... ±1mA
ANALOG CHARACTERISTICS
Electrical Characteristics
Temperature Coefficient
End-to-End Resistance Tolerance ..................... ±20%
Power Rating at 25°C
(–40°C to +85°C)
X9C102 ......................................+600 ppm/°C Typical
X9C103, X9C503, X9C104 ........+300 ppm/°C Typical
Ratiometric Temperature Coefficient ............ ±20 ppm
X9C102....................................................... 16mW
X9C103, X9C503, and X9C104.................. 10mW
Wiper Current............................................ ±1mA Max.
Typical Wiper Resistance......................... 40Ω at 1mA
Typical Noise..........................< –120dB/ Hz Ref: 1V
Wiper Adjustability
Unlimited Wiper Adjustment (Non-Store operation)
Wiper Position Store Operations ................... 10,000
Data Changes
Resolution
Resistance ............................................................. 1%
Physical Characteristics
Linearity
Marking Includes
(1)
(3)
(2)
(2)
Manufacturer‘s Trademark
Resistance Value or Code
Date Code
Absolute Linearity ........................................ ±1.0 Ml
Relative Linearity ..................................... ±0.2 Ml
Test Circuit #1
Test Circuit #2
V
H
V
H
TEST POINT
TEST POINT
V
W
FORCE
CURRENT
V
W
V
L
V
L
3863 FHD F04
3863 FHD F05
Notes: (1) Absolute Linearity is utilized to determine actual wiper voltage versus expected voltage
= (V (actual) – V (expected)) = ±1 Ml Maximum.
w(n)
w(n)
(2) 1 Ml = Minimum Increment = R
/99.
TOT
(3) Relative Linearity is a measure of the error in step size between taps = V
– [V
+ Ml] = +0.2 Ml.
W(n+1)
w(n)
4
X9C102/103/104/503
RECOMMENDED OPERATING CONDITIONS
Temperature
Min.
Max.
Supply Voltage
Limits
Commercial
Industrial
Military
0°C
+70°C
+85°C
+125°C
X9C102/103/104/503
5V ±10%
3863 PGM T04.2
–40°C
–55°C
3863 PGM T03.1
D.C. OPERATING CHARACTERISTICS (Over recommended operating conditions unless otherwise specified.)
Limits
(4)
Symbol
Parameter
Min.
Typ.
Max.
Units
Test Conditions
CS = V , U/D = V or V and
I
I
I
V
Active Current
1
3
mA
CC
SB
LI
CC
IL
IL
IH
INC = 0.4V to 2.4V @ max. t
CYC
Standby Supply Current
200
500
µA
µA
V
CS = V – 0.3V, U/D and INC =
CC
V
SS
or V – 0.3V
CC
CS, INC, U/D Input
Leakage Current
±10
V
IN
= V to V
SS CC
V
V
CS, INC, U/D Input
HIGH Voltage
2
V
+ 1
CC
IH
CS, INC, U/D Input
–1
0.8
V
IL
LOW Voltage
R
Wiper Resistence
40
100
+5
Ω
V
Max. Wiper Current ±1mA
W
H
L
V
V
VH Terminal Voltage
VL Terminal Voltage
–5
–5
+5
V
(5)
C
IN
CS, INC, U/D Input
10
pF
V
CC
= 5V, V = V
,
IN
SS
Capacitance
T = 25°C, f = 1MHz
A
3863 PGM T05.3
STANDARD PARTS
Part Number
Maximum Resistance
Wiper Increments
Minimum Resistance
X9C102
X9C103
X9C503
X9C104
1KΩ
10KΩ
50KΩ
100KΩ
10.1Ω
101Ω
505Ω
1010Ω
40Ω
40Ω
40Ω
40Ω
3863 PGM T08.1
Notes: (4) Typical values are for T = 25°C and nominal supply voltage.
A
(5) This parameter is periodically sampled and not 100% tested.
5
X9C102/103/104/503
A.C. CONDITIONS OF TEST
MODE SELECTION
Input Pulse Levels
0V to 3V
10ns
CS
INC
U/D
Mode
Wiper Up
Input Rise and Fall Times
Input Reference Levels
L
L
H
L
1.5V
Wiper Down
3863 PGM T05.1
H
X
L
X
X
X
Store Wiper Position
Standby Current
No Store, Return to
H
Standby
3863 PGM T06
A.C. OPERATING CHARACTERISTICS (Over recommended operating conditions unless otherwise specified)
Limits
(6)
Symbol
Parameter
CS to INC Setup
INC HIGH to U/D Change
U/D to INC Setup
INC LOW Period
INC HIGH Period
INC Inactive to CS Inactive
CS Deselect Time
INC to Vw Change
INC Cycle Time
INC Input Rise and Fall Time
Power up to Wiper Stable
Min.
Typ.
Max.
Units
t
t
t
t
t
t
t
t
t
t
t
100
100
2.9
1
ns
ns
µs
µs
µs
µs
ms
µs
µs
µs
µs
Cl
lD
DI
lL
1
lH
1
lC
20
CPH
IW
CYC
100
500
4
(7)
t
500
500
50
R, F
(7)
PU
(7)
t V
V Power-up Rate
CC
0.2
mV/µs
R
CC
3863 PGM T07.3
A.C. Timing
CS
t
CYC
t
t
t
t
t
CI
IL
IH
IC
CPH
90% 90%
10%
INC
U/D
t
t
t
t
ID
DI
F
R
t
IW
(8)
MI
V
W
3863 FHD F03
Notes: (6) Typical values are for T = 25°C and nominal supply voltage.
A
(7) This parameter is periodically sampled and not 100% tested.
(8) MI in the A.C. timing diagram refers to the minimum incremental change in the V output due to a change in the wiper position.
W
6
X9C102/103/104/503
Typical Frequency Response for X9C102
9
6
TEST CONDITIONS
VCC = 5V
Temp. = 25°C
Wiper @ Tap 50
VH = 0.5VRMS
3
0
Normalized (0dB @ 1KHz)
Test Circuit #1
–3
–6
–9
–12
–15
–18
–21
0.01
0.10
1.00
10.00 100.00 1000.00 10000.00
FREQUENCY IN KHz
3863 FHD F06
Typical Total Harmonic Distortion for X9C102
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
TEST CONDITIONS
VCC = 5V
Temp. = 25°C
Wiper @ Tap 50
VH = 2VRMS
Test Circuit #1
0.01
0.10
1.00
10.00 100.00 1000.00 10000.00
FREQUENCY IN KHz
3863 FHD F07
7
X9C102/103/104/503
Typical Linearity for X9C102
10
8
TEST CONDITIONS
VCC = 5V
Temp. = 25°C
Test Circuit #2
6
4
2
KEY:
0
= ABSOLUTE
–2
–4
–6
–8
–10
= RELATIVE
0
10 20 30 40 50 60 70 80 90 100
WIPER POSITION
3863 FHD F08
Typical Frequency Response for X9C103
9
6
TEST CONDITIONS
VCC = 5V
3
Temp. = 25°C
Wiper @ Tap 50
VH = 0.5VRMS
0
Normalized (0dB @ 1KHz)
Test Circuit #1
–3
–6
–9
–12
–15
–18
–21
0.01
0.10
1.00
10.00 100.00 1000.00
FREQUENCY IN KHz
3863 FHD F09
8
X9C102/103/104/503
Typical Total Harmonic Distortion for X9C103
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
TEST CONDITIONS
VCC = 5V
Temp. = 25°C
Wiper @ Tap 50
VH = 2VRMS
Test Circuit #1
0.01
0.10
1.00
10.00 100.00 1000.00
FREQUENCY IN KHz
3863 FHD F10
Typical Linearity for X9C103
10
8
TEST CONDITIONS
VCC = 5V
Temp. = 25°C
Test Circuit #2
6
4
2
KEY:
0
= ABSOLUTE
–2
–4
–6
–8
–10
= RELATIVE
0
10 20 30 40 50 60 70 80 90 100
WIPER POSITION
3863 FHD F11
9
X9C102/103/104/503
Typical Frequency Response for X9C503
9
6
TEST CONDITIONS
VCC = 5V
Temp. = 25°C
Wiper @ Tap 50
VH = 0.5VRMS
Normalized (0dB @ 1 KHz)
Test Circuit #1
3
0
-3
-6
-9
-12
-15
-18
-21
0.01
0.10
1.00
10.00
100.00
1000.00
FREQUENCY IN KHz
3863 FHD F12
Typical Total Harmonic Distortion for X9C503
9
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
TEST CONDITIONS
VCC = 5V
Temp. = 25°C
Wiper @ Tap 50
VH = 2VRMS
Test Circuit #1
0.01
0.10
1.00
10.00 100.00 1000.00
FREQUENCY IN KHz
3863 FHD F13
10
X9C102/103/104/503
Typical Linearity for X9C503
10
8
TEST CONDITIONS
VCC = 5V
Temp. = 25°C
Test Circuit #2
6
4
2
KEY:
0
= ABSOLUTE
-2
-4
-6
-8
-10
= RELATIVE
0
10 20 30 40 50 60 70 80 90 100
WIPER POSITION
3863 FHD F14
Typical Frequency Response for X9C104
9
6
TEST CONDITIONS
VCC = 5V
Temp. = 25°C
Wiper @ Tap 50
VH = 0.5VRMS
3
0
Normalized (0dB @ 1 KHz)
Test Circuit #1
-3
-6
-9
-12
-15
-18
-21
0.01
0.10
1.00
10.00
100.00
1000.00
FREQUENCY IN KHz
3863 FHD F15
11
X9C102/103/104/503
Typical Total Harmonic Distortion for X9C104
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
TEST CONDITIONS
VCC = 5V
Temp. = 25°C
Wiper @ Tap 50
VH = 2VRMS
Test Circuit #1
0.01
0.10
1.00
10.00 100.00 1000.00 10000.00
FREQUENCY IN KHz
3863 FHD F16
Typical Linearity for X9C104
10
8
TEST CONDITIONS
VCC = 5V
Temp. = 25°C
Test Circuit #2
6
4
2
KEY:
0
= ABSOLUTE
= RELATIVE
-2
-4
-6
-8
-10
0
10 20 30 40 50 60 70 80 90 100
WIPER POSITION
3863 FHD F17
12
X9C102/103/104/503
PACKAGING INFORMATION
8-LEAD PLASTIC DUAL IN-LINE PACKAGE TYPE P
0.430 (10.92)
0.360 (9.14)
0.092 (2.34)
DIA. NOM.
0.255 (6.47)
0.245 (6.22)
PIN 1 INDEX
PIN 1
0.060 (1.52)
0.020 (0.51)
0.300
(7.62) REF.
HALF SHOULDER WIDTH ON
ALL END PINS OPTIONAL
0.140 (3.56)
0.130 (3.30)
SEATING
PLANE
0.020 (0.51)
0.015 (0.38)
0.150 (3.81)
0.125 (3.18)
0.062 (1.57)
0.058 (1.47)
0.110 (2.79)
0.090 (2.29)
0.020 (0.51)
0.016 (0.41)
0.325 (8.25)
0.300 (7.62)
0.015 (0.38)
MAX.
0°
15°
TYP. 0.010 (0.25)
NOTE: ALL DIMENSIONS IN INCHES (IN PARENTHESES IN MILLIMETERS)
3926 FHD F01
13
X9C102/103/104/503
PACKAGING INFORMATION
8-LEAD PLASTIC SMALL OUTLINE GULL WING PACKAGE TYPE S
0.150 (3.80)
0.158 (4.00)
0.228 (5.80)
0.244 (6.20)
PIN 1 INDEX
PIN 1
0.014 (0.35)
0.019 (0.49)
0.188 (4.78)
0.197 (5.00)
(4X) 7°
0.053 (1.35)
0.069 (1.75)
0.004 (0.19)
0.010 (0.25)
0.050 (1.27)
0.010 (0.25)
0.020 (0.50)
X 45°
0° – 8°
0.0075 (0.19)
0.010 (0.25)
0.027 (0.683)
0.037 (0.937)
NOTE: ALL DIMENSIONS IN INCHES (IN PARENTHESIS IN MILLIMETERS)
3926 FHD F22
14
X9C102/103/104/503
ORDERING INFORMATION
X9CXXX
X
X
Temperature Range
Blank = Commercial = 0°C to +70°C
I = Industrial = –40°C to +85°C
M = Military = –55°C to +125°C
Package
P = 8-Lead Plastic DIP
S = 8-Lead SOIC
End to End Resistance
102 = 1KΩ
103 = 10KΩ
503 = 50KΩ
104 = 100KΩ
LIMITED WARRANTY
Devices sold by Xicor, Inc. are covered by the warranty and patent indemnification provisions appearing in its Terms of Sale only. Xicor, Inc. makes no warranty,
express, statutory, implied, or by description regarding the information set forth herein or regarding the freedom of the described devices from patent infringement.
Xicor, Inc. makes no warranty of merchantability or fitness for any purpose. Xicor, Inc. reserves the right to discontinue production and change specifications and
prices at any time and without notice.
Xicor, Inc. assumes no responsibility for the use of any circuitry other than circuitry embodied in a Xicor, Inc. product. No other circuits, patents, licenses are
implied.
U.S. PATENTS
Xicor products are covered by one or more of the following U.S. Patents: 4,263,664; 4,274,012; 4,300,212; 4,314,265; 4,326,134; 4,393,481; 4,404,475;
4,450,402; 4,486,769; 4,488,060; 4,520,461; 4,533,846; 4,599,706; 4,617,652; 4,668,932; 4,752,912; 4,829, 482; 4,874, 967; 4,883, 976. Foreign patents and
additional patents pending.
LIFE RELATED POLICY
In situations where semiconductor component failure may endanger life, system designers using this product should design the system with appropriate error
detection and correction, redundancy and back-up features to prevent such an occurence.
Xicor's products are not authorized for use in critical components in life support devices or systems.
1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and whose
failure to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant
injury to the user.
2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life
support device or system, or to affect its safety or effectiveness.
15
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