CATALYST CAT5115LI-50-G

CAT5115
32-Tap Digitally Programmable Potentiometer (DPP™)
FEATURES
DESCRIPTION
„ 32-position linear taper potentiometer
The CAT5115 is a single digitally programmable
potentiometer (DPP™) designed as a electronic
replacement for mechanical potentiometers and trim
pots. Ideal for automated adjustments on high volume
production lines, they are also well suited for
applications where equipment requiring periodic
adjustment is either difficult to access or located in a
hazardous or remote environment.
„ Low power CMOS technology
„ Single supply operation: 2.5V – 6V
„ Increment up/down serial interface
„ Resistance values: 10kΩ, 50kΩ and 100kΩ
„ Available in PDIP, SOIC, TSSOP, MSOP and
space saving 2 x 2.5mm TDFN packages
The CAT5115 contains a 32-tap series resistor array
connected between two terminals RH and RL. An
up/down counter and decoder that are controlled by
three input pins, determines which tap is connected to
the wiper, RW. The wiper is always set to the mid
point, tap 15 at power up. The tap position is not
stored in memory. Wiper-control of the CAT5115 is
¯¯ , U/D
¯,
accomplished with three input control pins, CS
¯¯¯ . The INC
¯¯¯ input increments the wiper in the
and INC
direction which is determined by the logic state of the
¯ input. The CS
¯¯ input is used to select the device.
U/D
APPLICATIONS
„ Automated product calibration
„ Remote control adjustments
„ Offset, gain and zero control
„ Tamper-proof calibrations
„ Contrast, brightness and volume controls
„ Motor controls and feedback systems
„ Programmable analog functions
The digitally programmable potentiometer can be used
as a three-terminal resistive divider or as a two-terminal
variable resistor. DPPs bring variability and programmability to a wide variety of applications including
control, parameter adjustments, and signal processing.
For Ordering Information details, see page 13.
For a pin-compatible device that recalls a stored tap
position on power-up refer to the CAT5114 data sheet.
FUNCTIONAL DIAGRAM
U/D
INC
CS
VCC
INC
RH/VH
30
29
RH/VH
U/D
Control
and
Memory
RH/VH
31
5-BIT
UP/DOWN
COUNTER
5-BIT
NONVOLATILE
MEMORY
ONE 28
OF
THIRTY TWO
DECODER
RW/VW
CS
TRANSFER
GATES
RESISTOR
ARRAY
RW/VW
2
Power On Recall
RL/VL
VCC
GND
GND
STORE AND
RECALL
CONTROL
CIRCUITRY
1
0
RL/VL
RW/VW
General
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
Detailed
1
RL/VL
Electronic Potentiometer
Implementation
Doc. No. MD-2117 Rev. G
CAT5115
PIN CONFIGURATION
PIN DESCRIPTIONS
PDIP 8-Lead (L), SOIC 8-Lead (V),
MSOP 8-Lead (Z)
¯¯¯
INC
1
¯
U/D
2
RH
3
GND
4
TSSOP 8-Lead (Y)
¯¯
CS
1
VCC
2
¯¯¯
INC
3
¯
U/D
4
8
CAT
RL
7
RWB
6
GND
5
RH
CAT
Name Function
8
VCC
¯¯¯
INC
¯
U/D
7
¯¯
CS
RH
6
RL
GND
5
RWB
RW
Buffered Wiper Terminal
TDFN 8-Pad
(ZD7) Top View
RL
Potentiometer Low Terminal
¯¯
CS
Chip Select
VCC
Supply Voltage
¯¯¯ 1
INC
8 VCC
¯ 2
U/D
¯¯
7 CS
RH 3
6 RL
GND 4
Increment Control
Potentiometer High Terminal
Up/Down Control
Ground
5 RWB
PIN FUNCTION
¯¯ : Chip Select
CS
The chip select input is used to activate the control
input of the CAT5115 and is active low. When in a
¯¯¯ and U/D
¯ inputs will not
high state, activity on the INC
affect or change the position of the wiper.
¯¯¯ : Increment Control Input
INC
¯¯¯ input moves the wiper in the up or down
The INC
¯ input.
direction determined by the condition of the U/D
¯ : Up/Down Control Input
U/D
¯ input controls the direction of the wiper
The U/D
¯¯ is low, any
movement. When in a high state and CS
¯¯¯ will cause the wiper to
high-to-low transition on INC
move one increment toward the RH terminal. When in
¯¯ is low, any high-to-low transition
a low state and CS
¯¯¯ will cause the wiper to move one increment
on INC
towards the RL terminal.
DEVICE OPERATION
The CAT5115 operates like a digitally controlled
potentiometer with RH and RL equivalent to the high
and low terminals and RW equivalent to the
mechanical potentiometer's wiper. There are 32
available tap positions including the resistor end
points, RH and RL. There are 31 resistor elements
connected in series between the RH and RL terminals.
The wiper terminal is connected to one of the 32 taps
¯¯¯ , U/D
¯ and CS
¯¯ .
and controlled by three inputs, INC
These inputs control a five-bit up/down counter whose
output is decoded to select the wiper position.
RH: High End Potentiometer Terminal
RH is the high end terminal of the potentiometer. It is
not required that this terminal be connected to a
potential greater than the RL terminal. Voltage applied
to the RH terminal cannot exceed the supply voltage,
VCC or go below ground, GND.
¯¯ set LOW the CAT5115 is selected and will
With CS
¯ and INC
¯¯¯ inputs. HIGH to LOW
respond to the U/D
¯¯¯ will increment or decrement the
transitions on INC
¯ input and
wiper (depending on the state of the U/D
five-bit counter). The wiper, when at either fixed
terminal, acts like its mechanical equivalent and does
not move beyond the last position. When the
CAT5115 is powered-down, the wiper position is
reset. When power is restored, the counter is set to
the mid point, tap 15.
RW: Wiper Potentiometer Terminal
RW is the wiper terminal of the potentiometer. Its
position on the resistor array is controlled by the
¯¯¯, U/D
¯ and CS
¯¯ . Voltage applied to
control inputs, INC
the RW terminal cannot exceed the supply voltage,
VCC or go below ground, GND.
RL: Low End Potentiometer Terminal
RL is the low end terminal of the potentiometer. It is
not required that this terminal be connected to a
potential less than the RH terminal. Voltage applied to
the RL terminal cannot exceed the supply voltage, VCC
or go below ground, GND. RL and RH are electrically
interchangeable.
Doc. No. MD-2117 Rev. G
2
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
CAT5115
RH
OPERATION MODES
¯¯¯
INC
¯¯
CS
¯
U/D
Operation
High to Low
Low
High
Wiper toward H
High to Low
Low
Low
Wiper toward L
High
Low to High
X
Store Wiper Position
Low
Low to High
X
No Store, Return to Standby
X
High
X
Standby
CH
RWI
RW
CW
CL
RL
Potentiometer
Equivalent Circuit
ABSOLUTE MAXIMUM RATINGS (1)
Parameters
Supply Voltage
VCC to GND
Inputs
¯¯ to GND
CS
¯¯¯ to GND
INC
¯ to GND
U/D
H to GND
L to GND
W to GND
Ratings
Units
-0.5 to +7V
V
-0.5 to VCC +0.5
-0.5 to VCC +0.5
-0.5 to VCC +0.5
-0.5 to VCC +0.5
-0.5 to VCC +0.5
-0.5 to VCC +0.5
V
V
V
V
V
V
Parameters
Operating Ambient Temperature
Industrial (‘I’ suffix)
Junction Temperature
Storage Temperature
Lead Soldering (10s max)
Ratings
Units
-40 to +85
+150
-65 to 150
+300
ºC
ºC
ºC
ºC
RELIABILITY CHARACTERISTICS
Symbol
Parameter
VZAP(2)
ILTH(2) (3)
Test Method
Min
Typ
Max
Units
ESD Susceptibility
MIL-STD-883, Test Method 3015
2000
V
Latch-Up
JEDEC Standard 17
100
mA
TDR
Data Retention
MIL-STD-883, Test Method 1008
100
Years
NEND
Endurance
MIL-STD-883, Test Method 1003
1,000,000
Stores
DC ELECTRICAL CHARACTERISTICS
VCC = +2.5V to +6V unless otherwise specified
Power Supply
Symbol
Parameter
VCC
Operating Voltage Range
ICC1
Supply Current (Increment)
ISB1(3)
Supply Current (Standby)
Conditions
Min
Typ
Max
Units
2.5
–
6
V
VCC = 6V, f = 1MHz, IW = 0
–
–
100
µA
VCC = 6V, f = 250kHz, IW = 0
¯¯ = VCC - 0.3V
CS
¯ , INC
¯¯¯ = VCC - 0.3V or GND
U/D
–
–
50
µA
–
0.01
1
µA
Notes:
(1) Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions outside of those listed in the operational sections of this
specification is not implied. Exposure to any absolute maximum rating for extended periods may affect device performance and reliability.
(2) This parameter is tested initially and after a design or process change that affects the parameter.
(3) Latch-up protection is provided for stresses up to 100mA on address and data pins from -1V to VCC + 1V.
(4) IW = source or sink.
(5) These parameters are periodically sampled and are not 100% tested.
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
3
Doc. No. MD-2117 Rev. G
CAT5115
Logic Inputs
Symbol
Parameter
Conditions
IIH
Input Leakage Current
IIL
Input Leakage Current
VIH1
TTL High Level Input Voltage
VIL1
TTL Low Level Input Voltage
VIH2
CMOS High Level Input Voltage
VIL2
CMOS Low Level Input Voltage
Min
Typ
Max
Units
VIN = VCC
–
–
10
µA
VIN = 0V
–
–
-10
µA
2
–
VCC
V
0
–
0.8
V
VCC x 0.7
–
VCC + 0.3
V
-0.3
–
VCC x 0.2
V
4.5V ≤ VCC ≤ 5.5V
2.5V ≤ VCC ≤ 6V
Potentiometer Characteristics
Symbol
RPOT
Parameter
Potentiometer Resistance
Conditions
Min
Typ
-10 Device
10
-50 Device
50
-00 Device
100
Pot. Resistance Tolerance
Max
Units
kΩ
±20
%
VRH
Voltage on RH pin
0
VCC
V
VRL
Voltage on RL pin
0
VCC
V
Resolution
3.2
%
INL
Integral Linearity Error
IW ≤ 2µA
0.5
1
LSB
DNL
Differential Linearity Error
IW ≤ 2µA
0.25
0.5
LSB
RWI
Wiper Resistance
VCC = 5V, IW = 1mA
70
200
Ω
VCC = 2.5V, IW = 1mA
150
400
Ω
1
mA
±300
ppm/ºC
20
ppm/ºC
IW
Wiper Current
TCRPOT
TC of Pot Resistance
TCRATIO
Ratiometric TC
VN
CH/CL/CW
fc
Noise
(1)
±50
100kHz / 1kHz
Potentiometer Capacitances
Frequency Response
Doc. No. MD-2117 Rev. G
Passive Attenuator, 10kΩ
4
8/24
nV/√Hz
8/8/25
pF
1.7
MHz
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
CAT5115
AC CONDITIONS OF TEST
VCC Range
2.5V ≤ VCC ≤ 6.0V
Input Pulse Levels
0.2VCC to 0.7VCC
Input Rise and Fall Times
10ns
Input Reference Levels
0.5VCC
AC OPERATING CHARACTERISTICS
VCC = +2.5V to +6.0V, VH = VCC, VL = 0V, unless otherwise specified
Symbol
tCI
tDI
tID
tIL
tIH
tIC
tCPH
tIW
tCYC
tR, tF
tPU
(2)
(2)
Parameter
Min
Typ (1)
Max
Units
¯¯ to INC
¯¯¯ Setup
CS
¯ to INC
¯¯¯ Setup
U/D
100
–
–
ns
50
–
–
ns
¯ to INC
¯¯¯ Hold
U/D
¯¯¯ LOW Period
INC
100
–
–
ns
250
–
–
ns
¯¯¯ HIGH Period
INC
¯¯¯ Inactive to CS
¯¯ Inactive
INC
250
–
–
ns
1
–
–
µs
¯¯ Deselect Time
CS
¯¯¯ to VOUT Change
INC
100
–
–
ns
–
1
5
µs
¯¯¯ Cycle Time
INC
¯¯¯ Input Rise and Fall Time
INC
1
–
–
µs
–
–
500
µs
Power-up to Wiper Stable
–
–
1
ms
A.C. TIMING
CS
tCI
tIL
tCYC
tIC
tIH
(store)
tCPH
90%
INC
90%
10%
tDI
tID
tF
U /D
tIW
tR
MI(3)
RW
Notes:
(1) Typical values are for TA = 25ºC and nominal supply voltage.
(2) This parameter is periodically sampled and not 100% tested.
(3) MI in the A.C. Timing diagram refers to the minimum incremental change in the W output due to a change in the wiper position.
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
5
Doc. No. MD-2117 Rev. G
CAT5115
APPLICATIONS INFORMATION
POTENTIOMETER CONFIGURATION
(a) resistive divider
(b) variable resistance
(c) two-port
APPLICATIONS
3
V1 (-)
2
+
1
R3
–
+5V
9
R2
4
–
R1
1 DPP
7
R2
10
+
A3
11
8
RA
CAT5113/5114/5115
V2 (+)
5
6
1 DPP
7
VO
pRPOT
5
4
3
R3
–
3
555
+
R4
6
+2.5V
7
A1 = A2 = A3 = ¼ LM6064
R2 = R3 = R4 = 5kΩ
RPOT = 10kΩ
10kΩ
+200mV
–
1 DPP
7
4
+
20kΩ
8
2
5
2
1
0.01µF
Programmable Sq. Wave Oscillator (555)
7
+5V
0.01µF
0.01µF
0.003µF
C
IC3A
¼ 74HC132
OSC
8
(1-p)R POT
R2
Programmable Instrumentation Amplifier
+
ICIB
6
VREF = 1V
5
499kΩ
VCORR
–
CS
4
7
RB
4
6
R1
8
2
8
+5V
+5V
+5V
2
R4
499kΩ
+5V
2
CAT5111/5112
IC2
3
–
+
4
1
VOUT = 1V ± 1mV
11 ICIA
Sensor
-5V
VSHIFT = 100mV
499kΩ
499kΩ
VSENSOR = 1V ± 50mV
Sensor Auto Referencing Circuit
Doc. No. MD-2117 Rev. G
6
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
CAT5115
100kΩ
+5V
8
2
SHUTDOWN
SD
FB
4
R3
10kΩ
5
CAT5113/5114/5115
7
–
3
IS
3
+
330Ω
1MΩ
3
5
+5V
2
POR
pR (1-p)R
6
R2
820Ω
Control
and
Memory
7
6.8µF
330Ω
8
2
1
0.1µF
1.23V
GND
1µF
+5V
4
R1
11kΩ
2952
VIN (UNREG)
1 DPP CAT5113/5114
7
VO (REG)
VOUT
A1
+5V
2
10k
6
4
3
7
–
+
A2
VO
6
4
6
LT1097
Programmable Voltage Regulator
+2.5V
Programmable I to V Converter
+5V
IC1
393
IC2
74HC132
–
1
OSC
+
CLO
VLL
2
R1
3
R2
–
CHI 7
10kΩ
0.1µF
+
U/D
+5V
VUL
C1
0.001µF
1µF
R3
100k Ω
C2
R1
50kΩ
5
10kΩ
3
4
VS
3
+
7
4
A1
+2.5V
CAT5113/5114
4
+2.5V
VO
6
1 DPP
7
2.5 ≤ VO ≤ 5V
AI
IC4
CS
R2
10k Ω
8
2
VO
+
–
0.001µF
+5V
–
+5V
2
VS
8
1 INC
7
R3
5
+5V
IC3
CAT5114/5113
+5V
6
2
6
0 ≤ VS ≤ 2.5V
Programmable Bandpass Filter
Automatic Gain Control
CAT5111/5112
+5V
Serial
Bus
R1
100k Ω
+5V
–
R1
100k Ω
VS
+5V
2
–
+
+2.5V
R1
100k Ω
3
+
R
2.5kΩ
7
IS
1
11
R1
100k Ω
+
7
5
+2.5V
–
A2
6
A1 = A2 = LMC6064A
Programmable Current Source/Sink
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
7
Doc. No. MD-2117 Rev. G
CAT5115
PACKAGE OUTLINE DRAWING
PDIP 8-Lead 300mils (L) (1)(2)
SYMBOL
MIN
NOM
A
E1
5.33
A1
0.38
A2
2.92
3.30
4.95
b
0.36
0.46
0.56
b2
1.14
1.52
1.78
c
0.20
0.25
0.36
D
9.02
9.27
10.16
E
7.62
7.87
8.25
e
PIN # 1
IDENTIFICATION
MAX
2.54 BSC
E1
6.10
eB
7.87
L
2.93
6.35
7.11
10.92
3.30
3.80
D
TOP VIEW
E
A2
A
A1
c
b2
L
e
eB
b
SIDE VIEW
END VIEW
For current Tape and Reel information, download the PDF file from:
http://www.catsemi.com/documents/tapeandreel.pdf.
Notes:
(1) All dimensions are in millimeters.
(2) Complies with JEDEC MS-001.
Doc. No. MD-2117 Rev. G
8
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
CAT5115
SOIC 8-Lead 150mils (V) (1)(2)
SYMBOL
E1
E
MIN
MAX
A
1.35
1.75
A1
0.10
0.25
b
0.33
0.51
c
0.19
0.25
D
4.80
5.00
E
5.80
6.20
E1
3.80
4.00
e
PIN # 1
IDENTIFICATION
NOM
1.27 BSC
h
0.25
0.50
L
0.40
1.27
θ
0º
8º
TOP VIEW
D
h
A1
θ
A
c
e
b
L
SIDE VIEW
END VIEW
For current Tape and Reel information, download the PDF file from:
http://www.catsemi.com/documents/tapeandreel.pdf.
Notes:
(1) All dimensions are in millimeters. Angles in degrees.
(2) Complies with JEDEC MS-012.
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
9
Doc. No. MD-2117 Rev. G
CAT5115
TSSOP 8-Lead 4.4mm (Y) (1)(2)
b
SYMBOL
MIN
NOM
A
E1
E
MAX
1.20
A1
0.05
A2
0.80
0.15
0.90
1.05
b
0.19
0.30
c
0.09
0.20
D
2.90
3.00
3.10
E
6.30
6.40
6.50
E1
4.30
4.40
4.50
e
0.65 BSC
L
1.00 REF
L1
0.50
θ1
0°
0.60
0.75
8°
e
TOP VIEW
D
A2
A
A1
c
θ1
L1
SIDE VIEW
L
END VIEW
For current Tape and Reel information, download the PDF file from:
http://www.catsemi.com/documents/tapeandreel.pdf.
Notes:
(1) All dimensions are in millimeters. Angles in degrees.
(2) Complies with JEDEC MO-153.
Doc. No. MD-2117 Rev. G
10
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
CAT5115
MSOP 8-Lead 3.0mm (Z) (1)(2)
SYMBOL
MIN
NOM
MAX
A1
0.05
0.10
0.15
A2
0.75
0.85
0.95
b
0.28
0.33
0.38
c
0.13
A
E1
E
1.10
0.23
D
2.90
3.00
3.10
E
4.80
4.90
5.00
E1
2.90
3.00
3.10
e
L
0.65 BSC
0.40
0.60
L1
0.95 REF
L2
0.25 BSC
θ
0.80
0º
6º
TOP VIEW
D
A2
e
b
A
A1
c
SIDE VIEW
DETAIL A
END VIEW
θ
L2
L
L1
DETAIL A
For current Tape and Reel information, download the PDF file from:
http://www.catsemi.com/documents/tapeandreel.pdf.
Notes:
(1) All dimensions are in millimeters. Angles in degrees.
(2) Complies with JEDEC MS-187.
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
11
Doc. No. MD-2117 Rev. G
CAT5115
TDFN 8-Pad 2 x 2.5mm (ZD7) (1)(2)
PIN#1
IDENTIFICATION
SYMBOL
MIN
NOM
MAX
A
0.70
0.75
0.80
A1
0.00
0.02
0.05
A3
0.20 REF
b
0.20
0.25
0.30
D
1.90
2.00
2.10
D2
1.40
1.50
1.60
E
2.40
2.50
2.60
E2
1.20
1.30
1.40
e
L
0.50 TYP
0.20
0.30
0.40
A1
A3
For current Tape and Reel information, download the PDF file from:
http://www.catsemi.com/documents/tapeandreel.pdf.
Notes:
(1) All dimensions are in millimeters.
(2) Complies with JEDEC MO-229.
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
12
Doc. No. MD-2117 Rev. G
CAT5115
EXAMPLE OF ORDERING INFORMATION(1)
Prefix
CAT
Device #
Suffix
5115
V
Optional
Company ID
I
-10
Temperature Range
I = Industrial (-40ºC to 85ºC)
Product Number
5115
Resistance
-10: 10 kΩ
-50: 50 kΩ
-00: 100 kΩ
Package
L: PDIP
V: SOIC
Y: TSSOP
Z: MSOP
ZD7: TDFN(5)
–
G
T3
Tape & Reel
T: Tape & Reel
3: 3000/Reel
Lead Finish
Blank: Matte-Tin
G: NiPdAu
ORDERING PART NUMBER
CAT5115LI-10-G
CAT5115LI-50-G
CAT5115LI-00-G
CAT5115VI-10-G
CAT5115VI-50-G
CAT5115VI-00-G
CAT5115YI-10-G
CAT5115YI-50-G
CAT5115YI-00-G
CAT5115ZI-10-G
CAT5115ZI-50-G
CAT5115ZI-00-G
CAT5115ZD7I-10(6)
CAT5115ZD7I-50(6)
CAT5115ZD7I-00(6)
Notes:
(1) All packages are RoHS-compliant (Lead-free, Halogen-free).
(2) The standard lead finish is NiPdAu.
(3) This device used in the above example is a CAT5115VI-10-GT3 (SOIC, Industrial Temperature, 10kΩ, NiPdAu, Tape & Reel).
(4) For additional package and temperature options, please contact your nearest Catalyst Semiconductor Sales office.
(5) TDFN is not available in NiPdAu (-G) version.
(6) Contact factory for package availability.
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
13
Doc. No. MD-2117 Rev. G
REVISION HISTORY
Date
09/25/2003
Rev.
Reason
B
Changed designation to Preliminary.
Updated Description.
Updated Potentiometer Parameters table.
03/10/2004
C
Updated Potentiometer Parameters table.
03/29/2004
D
Changed Green Package marking for SOIC from W to V
04/12/2004
E
Updated Tape and Reel specs in Ordering Information
08/31/2004
F
Deleted ICC2 from DC Characteristics table
Updated AC Operating Characteristics table
Updated A.C. Timing diagram.
G
Update Absolute Maximum Ratings table
Update DC Electrical Characteristics tables
Update AC Conditions of Test table
Update all Package Outline Drawings
Update Example of Ordering Information
Update Ordering Part Number
07/06/2007
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OUT OF ANY SUCH USE OR APPLICATION, INCLUDING BUT NOT LIMITED TO, CONSEQUENTIAL OR INCIDENTAL DAMAGES.
Catalyst Semiconductor products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other
applications intended to support or sustain life, or for any other application in which the failure of the Catalyst Semiconductor product could create a situation where
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Catalyst Semiconductor reserves the right to make changes to or discontinue any product or service described herein without notice. Products with data sheets labeled
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Catalyst Semiconductor advises customers to obtain the current version of the relevant product information before placing orders. Circuit diagrams illustrate typical
semiconductor applications and may not be complete.
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Document No: MD-2117
Revision:
G
Issue date:
07/06/07