Low-power quad voltage comparators

LM139, LM239, LM339

  Low-power quad voltage comparators Features

  Wide single supply voltage range or dual

  ■

  supplies for all devices: +2 to +36 V or ±1 V to ±18 V

  N ■ Very low supply current (1.1 mA) independent

  DIP14

  of supply voltage

  (Plastic package) ■ Low input bias current: 25 nA typ ■ Low input offset current: ±5 nA typ ■ Low input offset voltage: ±1 mV typ ■ Input common-mode voltage range includes

  ground

  D SO-14 ■ Low output saturation voltage: 250 mV typ;

  (Plastic micropackage)

  (I = 4 mA)

  SINK

  Differential input voltage range equal to the

  ■

  supply voltage

  ■ TTL, DTL, ECL, MOS, CMOS compatible

  outputs

  P TSSOP14 Description (Thin shrink small outline package)

  This family of devices consists of four independent precision-voltage comparators with an offset voltage specification as low as 2 mV maximum for LM339A, LM239A and LM139A. Each comparator has been designed specifically to operate from a single power supply over a wide range of voltages. Operation from split power

  Q supplies is also possible. QFN16 3x3

  These comparators also have a unique

  (Plastic micropackage)

  characteristic in that the input common mode voltage range includes ground even though operated from a single power supply voltage.

  July 2011 Doc ID 2159 Rev 3 1/19

  

  19

LM139, LM239, LM339

  14 Output3

  Pin and schematic diagram

  1 Pin and schematic diagram Figure 1. Pin connections (top view) Output2 1 Output1 2

  V

  13 Output4

• CC

  3

• Inverting input1 Non-inverting input1 Inverting input2 Non-inverting input2

  Figure 2. Schematic diagram (1/4 LM139)

  2/19 Doc ID 2159 Rev 3

  V _CC

  V _O Inverting input

  Non-inverting input

  3.5 A 100 A

  V _CC 3.5 A 100 A

  7 Non-inverting input4 Inverting input4 Non-inverting input3 Inverting input3

  12

  6

  5

  4

  9

  10

  11

  8 V CC

  LM139, LM239, LM339 Absolute maximum ratings and operating conditions

  2 Absolute maximum ratings and operating conditions Table 1. Absolute maximum ratings Symbol Parameter Value Unit

  Supply voltage ±18 or 36

  V V

  CC

  Differential input voltage ±36

  V V

  ID

  Input voltage

• 0.3 to +36

  V V

  IN (1)

  Output short-circuit to ground Infinite

  (2)

  Thermal resistance junction to ambient DIP14

  80 R SO-14 °C/W

  105

  thja

  TSSOP14 100

  QFN16 3x3

  45

  (2)

  Thermal resistance junction to case DIP14

  33 R SO-14 °C/W

  31

  thjc

  TSSOP14

  32 QFN16 3x3

  14 T Storage temperature range -65 to +150 °C

  stg

  Junction temperature +150 °C T

  j

  Lead temperature (soldering 10 seconds) 260 °C T

  LEAD (3)

  Human body model (HBM) 500

  (4)

  Machine model (MM) ESD

  100

  V

  (5)

  Charged device model (CDM) 1500

  can cause excessive heating and eventual destruction. The

• 1. Short-circuits from the output to V

  CC .

• maximum output current is approximately 20 mA independent of the magnitude of V

  CC 2. Short-circuits can cause excessive heating. These values are typical.

  3. Human body model: a 100 pF capacitor is charged to the specified voltage, then discharged through a 1.5 k Ω resistor between two pins of the device. This is done for all couples of connected pin combinations while the other pins are floating.

  

4. Machine model: a 200 pF capacitor is charged to the specified voltage, then discharged directly between

two pins of the device with no external series resistor (internal resistor < 5  Ω). This is done for all couples of connected pin combinations while the other pins are floating.

5. Charged device model: all pins and the package are charged together to the specified voltage and then discharged directly to the ground through only one pin. This is done for all pins.

  Doc ID 2159 Rev 3 3/19

  

Absolute maximum ratings and operating conditions LM139, LM239, LM339

Table 2. Operating conditions (T = 25° C) amb Parameter Value Unit Symbol

  2 to 32

  V V Supply voltage ±1 to ±16

  CC

• 1.5)
• Common mode input voltage range 0 to (V

  V CC

  V ICM Operating free-air temperature range

• LM139, LM139A -55, +125 T

  °C

  oper

• LM239, LM239A -40, +105
• LM339, LM339A 0, +70

  4/19 Doc ID 2159 Rev 3

LM139, LM239, LM339

  3 Table 3. Electrical characteristics Electrical characteristics at V CC (unless otherwise specified)

  Electrical characteristics

• + = +5 V, V

  CC -
• (2)
• or I )

  = GND, T amb = +25° C LM139A - LM239A LM339A Min. Typ.

• 1.5
• 1.5
• 2
• 2
• V
• V
• I

  V ICM

  700 mV High level output current

  250 400 700 250 400

  OL

  V V

  V CC

  V CC

  V CC

  ID

  V CC

  V CC

  V CC

  max

  4 mA

  min

  T

  amb

  T

  min

  = T

  SINK

  V ID = -1 V, I

  Low level output voltage

  (4)

  Differential input voltage

  max

  V CC T

  = V

  amb

  = 1.5 V Response time

  Doc ID 2159 Rev 3 5/19

  1.3 s 

  1.3

  re

  6 16 mA t

  16

  6

  SINK

  V R

  CC

  = 5.1 k Ω connected to V

  (5) L

  ID = 1 V, V o

  o

  Output sink current

  1 nA A

  1

  0.1

  0.1

  1 V

  I OH

  max

  T

  amb

  = T

  ID

  = 30 V, V

  T

  T

  1 LM139 - LM239

  T

  V CC = 15 V, R

  Large signal voltage gain

  max

  T

  amb

  T

  min

  T

  Input bias current (I

  max

  T

  amb

  min

  = 15 k Ω

  Input offset current T

  max

  T

  amb

  T

  min

  T

  (1)

  Input offset voltage

  Unit

  1 Symbol Parameter

  LM339 Min Typ.

  L

  V IO

  min

  V o = 1 V to 11 V 50 200 50 200 V/mV Supply current (all comparators)

  (3)

  2.5 mA Input common mode voltage range

  2

  1.3

  1.1

  2.5

  2

  1.3

  1.1

  I CC

  V CC = +5 V, no load = +30 V, no load

  V CC

  VD

  3 I

  A

  50 150 250 400 mV nA nA

  9

  5

  25 Max.

  5

  25 100 100 300

  4

  2

  IB Max.

  25 I

  IO

  V CC = 30 V T

  Electrical characteristics LM139, LM239, LM339 = +5 V, V = GND, T + Table 3. Electrical characteristics at V CC - amb = +25° C CC (unless otherwise specified) (continued) LM139 - LM239 LM139A - LM239A LM339A LM339 Symbol Parameter

  Unit Min. Typ. Max. Min Typ. Max.

  Large signal response time , e = TTL,

• trel

  l L

  R = 5.1 k Ω connected to V

  CC

  V = +1.4 V 300 300 ns

  (ref) from 5 V to 30 V, and over the full common-mode range (0 V to V -1.5 V).

1.4 V, V

  CC o CC

  1. At output switch point, V 

  2. The direction of the input current is out of the IC due to the PNP input stage. This current is essentially constant, independent of the state of the output, so no loading charge exists on the reference of input lines.

  3. The input common-mode voltage of either input signal voltage should not be allowed to go negative by more than 0.3 V.

• 1.5 V, but either or both inputs can go to +30 V without
• The upper end of the common-mode voltage range is V

  CC damage.

  4. Positive excursions of input voltage may exceed the power supply level. As long as the other voltage remains within the common-mode range, the comparator will provide a proper output state. The low input voltage state must not be less than

• 0.3 V (or 0.3 V below the negative power supply, if used).

  5. The response time specified is for a 100 mV input step with 5 mV overdrive. For larger overdrive signals, 300 ns can be obtained.

  6/19 Doc ID 2159 Rev 3

LM139, LM239, LM339

• 1
• 2
• 3
• 50
• 100 T ^amb
• 2 -1

  Figure 7. Response time for various input overdrives - positive transition 20mV T ^amb = +25°C

  1

  2

  3

  4

  5

  6

  10

  50 Input overdrive : 100mV 5mV

  10

  10

  2

  1

  10

  10

  00

  1 TIME ( s)

  0.5

  V ) ( (m

  V INP UT OUT P UT

  V OL T A G OL

  V ) T A GE

  V ) E (m

  IO N SA (1

  V ) T UR A T

  V ) (

  T amb

  V INP UT

  V O OL T A GE T U P T U O

  V O L T A GE

  E G A T L

  I (m A ) UR RE NT C S UP P L Y

  ) A n ( NT RE R U C T P U N

  1.5

  = +25°C = -55°C

  10 T amb

  Electrical characteristics curves

  9 _{T amb = 0°C} T amb = -55°C V i

  0.2 ^{T amb = +125°C} T amb = +125°C R =

  0.4

  = +25°C

  T ^T amb ^{amb = +25°C Tamb = +70°C}

  = 0V = 10  Ω T amb = 0°C

  R i

  0.6 ^{T amb = -55°C}

  20

  0.8

  1

  20 Input current vs. supply voltage

  40

  60

  80

  4 Figure 3. Electrical characteristics curves Supply current vs. supply voltage Figure 4.

  10

  30

  10

  40

  10 T amb = +125°C

  2 Out of saturation

  1.5

  1 TIME ( s)

  = +25°C 0 0.5

  2 1 100mV

  3 _{e o}

  4 _{5.1k Ω} 20mV ^{e I}

  5

  6 Input overdrive : 5mV ^5V

  10 Response time for various input overdrives - negative transition

  1

  40 SUPPLY VOLTAGE (V) SUPPLY VOLTAGE (V) Figure 5. Output saturation voltage vs. output current Figure 6.

  30 = +70°C

  20 T amb

  10

10 OUTPUT SINK CURRENT (mA)

2 Doc ID 2159 Rev 3 7/19

  Typical applications

LM139, LM239, LM339

  5 Figure 8. Typical applications Basic comparator

  V CC = 5 V 15 k

  Ω

  Figure 9. Driving CMOS

  5 V 100 k Ω

• V ^(ref) 1/4 LM139
>V (
• V _(ref)V

  1/ 4 LM139 &

  V O

  (ref) Figure 10. Driving TTL

  Figure 11. Low frequency op amp

  5 V 15 k Ω

5 V

• V _(ref)
• V _(ref)

  LM139 & 100 k Ω

  A ^{V = 100} e ^o

  0.5 F

  1 k Ω & Figure 12. Low frequency op amp

  5 V (e _o = 0 V for e _l = 0 V) Figure 13. Transducer amplifier

  5 V 15 k Ω Magnetic pick-up

  10 k Ω 3 k Ω _{1/ 4 LM139}

  2N 2222 _~ e _l

  0.5 F ^{1/ 4 LM139}

  20 M Ω e o 100 k

  Ω A _V = 100 1 k Ω e ^o 10 k Ω

  8/19 Doc ID 2159 Rev 3

  10 k Ω 1/4 LM139

  ~ e ^l 1/ 4

LM139, LM239, LM339

  Typical applications Figure 14. Time delay generator _{V C C = +15V 10 k} Ω 15 kΩ ^{200 k} Ω ^{3 k} Ω _{10 M} Ω _{10 k} Ω _{1/4 LM139}

  V _{30 V 3} ^{V CC} t ^o t ³ _3k Ω _{10 k} Ω _{10 k} Ω _{V CC} t _o ^{1/4 LM139}

^{51 k}

  Ω _{V C1} ^{10 M} Ω t _A ^{1/4 LM139 V O2} _{V (ref.) V 2} ^{V CC} t _{o t 2} Input gating signal _{V CC} ^0.001

  

F

_{3 k} Ω _{10 M} Ω

_{51 k}

Ω

_{10 k} Ω _{V C1 V 3 V 2 V 1 t t t 1 1 4/ LM139 V O1 t t 3 t 4 V 1}

_{51 k}

Ω

^{V CC} t t _{1 2} Figure 15. Low frequency op amp with offset adjust _{Offset adjust 100 k 5 V}

  Ω _{R 5 V 2 1 M} Ω _{R S R} ^{1 M} Ω ₁ Figure 16. Zero crossing detector (single power supply)

  5 V 5.1 k Ω 100 k Ω 5.1 k

  Ω 100 k Ω 5.1 k Ω _{1/ 4 15 k Ω LM139 0.5}

  F _{R1 100 k} Ω _~ e _{l e l 2N 2222 1/ 4 LM139}

  1N4148 _{1 k} Ω

  20 M Ω _{e o} 10 k Ω Figure 17. Two-decade high-frequency VCO _{V CC 100 k}

  Ω ^{V CC} _{100 k} Ω _{Frequency control voltage input Vcontrol 500 pF 1/ 4 LM139 0.1 F 20 k} Ω ^{3 k} Ω _{5.1 k} Ω _{0.01 F} ^{3 k} Ω _{1/ 4 LM139 Output 1 V CC /2 Output 2 50 k} Ω ^{20 k} Ω _{V CC /2 1/ 4 LM139 V CC = + +250 mV 700 Hz 3 0 V Vcontrol fo +50 V 100 kHz}

  Doc ID 2159 Rev 3 9/19

  Typical applications LM139, LM239, LM339 Figure 18. Limit comparator

  15 V 5.1 k

  15 V

  5 V

  e ^o e _{I ~} e ^I ~

  1/ 4 LM139

  e ^o

  1/4 LM139

  Ω 5.1 k Ω

  Figure 21. Comparator with a negative reference

  V _CC Figure 19. Crystal-controlled oscillator _{V CC}

  15 V

  V _(ref) low Figure 20. Zero crossing detector

  2N 2222 _{200 k} Ω

  2R S ^{1/ 4 LM139}

  Lamp R _S ^{V CC} _0.1 F ^{1/ 4} _LM139 ^{e o} e _I ~ _{f = 100 kHz}

  V _(ref) high ^{100 k} Ω

  2R S 10 k Ω _{1/ 4 LM139} ^{200 k} Ω ^{2 k} Ω

  = 15 V (12 V)

  15 V 10/19 Doc ID 2159 Rev 3

LM139, LM239, LM339

  Package information

6 Package information

  In order to meet environmental requirements, ST offers these devices in different grades of ®

  ®

ECOPACK packages, depending on their level of environmental compliance. ECOPACK

specifications, grade definitions and product status are available at: www.st.com.

  ® ECOPACK is an ST trademark.

  Doc ID 2159 Rev 3 11/19

  Package information

LM139, LM239, LM339

  5.33 Ref. A A1 A2 b b2 c

  0.19 0.022

  0.73

  0.30

  0.24

  0.13 0.018

  0.06 0.009

  0.75

  0.31

  0.25

  0.10

  0.60

  0.30

  0.07

  0.11 0.014

  0.01

  0.77

  0.32

  0.28

  2.92

  3.30

  10.92

  3.81

  0.11

  0.13

  0.43

  0.15 12/19 Doc ID 2159 Rev 3

  0.04 0.007

  7.11 0.015

  D E E1 e e1 eA eB

  0.46

  L Min.

  Inches Typ. Max.

  0.21

  0.38

  2.92

  0.36

  1.14

  0.20

  18.67

  7.62

  6.10

  3.30

  1.52

  6.1 DIP14 package information Figure 22. DIP14 package mechanical drawing Table 4. DIP14 package mechanical data Dimensions Millimeters Min. Typ. Max.

  0.25

  19.05

  7.87

  6.35

  2.54

  15.24

  7.62

  4.95

  0.56

  1.78

  0.36

  19.69

  8.26

LM139, LM239, LM339

  Package information

  6.2 SO-14 package information Figure 23. SO-14 package mechanical drawing Table 5. SO-14 package mechanical data Dimensions Inches Millimeters Ref. Min. Typ. Max. Min. Typ. Max.

  A

  1.35

  1.75 0.05 0.068 A1

  0.10 0.25 0.004 0.009 A2

  1.10

  1.65

  0.04

  0.06 B

  0.33

  0.51

  0.01

  0.02 C

  0.19 0.25 0.007 0.009 D

  8.55

  8.75

  0.33

  0.34 E

  3.80

  4.0

  0.15

  0.15 e

  1.27

  0.05 H

  5.80

  6.20

  0.22

  0.24 h 0.25 0.50 0.009

  0.02 L

  0.40

  1.27

  0.05 0.015 k 8° (max.) ddd

  0.10 0.004 Doc ID 2159 Rev 3 13/19

  Package information

LM139, LM239, LM339

  6.3 QFN16 3x3 package information Figure 24. QFN16 3x3 package mechanical drawing

  14/19 Doc ID 2159 Rev 3

LM139, LM239, LM339

  3.00

  Doc ID 2159 Rev 3 15/19

  Figure 25. QFN16 3x3 footprint recommendation

  0.30 0.50 0.012 0.020

  0.50 0.020

  0.012 0.122 0.071 0.122 0.071

  0.118 0.118

  1.80 0.007 0.114 0.059 0.114 0.059

  3.10

  1.80

  3.10

  0.30

  3.00

  Package information Table 6. QFN16 3x3 mm package mechanical data (pitch 0.5 mm) Dimensions Ref.

  A A1 A3 b D D2 E E2 e L Min.

  2.90

  1.50

  2.90

  0.18

  0.20 0.008

  0.039 0.002

  0.035 Max.

  Inches Typ.

  0.031

  0.05 Min.

  1.00

  0.90 Max.

  0.80 Millimeters Typ.

  1.50

  Package information

LM139, LM239, LM339

  A A1 A2 b c D E E1 e L L1 k aaa

  1.05

  0.004 16/19 Doc ID 2159 Rev 3

  0.10 0° 8°

  0° 8°

  0.0089 0.201 0.260 0.176 0.030

  0.047 0.006 0.041 0.012

  0.0256 0.024 0.039 Max.

  0.75 0.018 0.197 0.252 0.173

  0.004 0.039

  0.002 0.031 0.007 0.004 0.193 0.244 0.169

  4.50 Inches Typ.

  6.60

  5.10

  0.20

  0.30

  0.15

  0.05

  1.00

  0.80

  0.19

  0.09

  4.90

  6.20

  4.30

  0.45

  6.4 TSSOP14 package information Figure 26. TSSOP14 package mechanical drawing Table 7. Ref. TSSOP14 package mechanical data Dimensions Millimeters

Min. Typ. Min.

  5.00

  6.40

  4.40

  0.65

  0.60

  1.00 Max.

  1.20

LM139, LM239, LM339

  Ordering information

  7 Ordering information Table 8. Order codes Part number

  LM139N LM139AN LM139D LM139AD LM139DT LM139ADT LM139PT LM139APT LM239N LM239AN LM239D LM239AD LM239DT LM239ADT LM239PT LM239APT LM239QT LM339N LM339AN LM339D LM339AD LM339DT LM339ADT LM339PT LM339APT LM339QT

  Temperature range Package Packing

  DIP14 Tube SO-14 Tube

  139A 139

  LM139N LM139AN 139

  Marking

• 55° C, +125° C SO-14 Tape & reel
• 40° C, +105° C SO-14 Tape & reel

  0° C, +70° C SO-14 Tape & reel

  TSSOP14 QFN16 3x3

  Tube SO-14 Tube

  DIP14 Tape & reel Tape & reel

  TSSOP14 QFN16 3x3

  TSSOP14 Tape & reel DIP14 Tube SO-14 Tube

  139A 139

  139A LM239N LM239AN 239

  239A 239

  239A 239

  239A K549 LM339N LM339AN 339

  339A 339

  339A 339

  339A K551 Doc ID 2159 Rev 3 17/19

  Tape & reel Tape & reel

  Revision history

LM139, LM239, LM339

  8 Revision history Table 9. Document revision history Changes Date Revision

  01-Mar-2003 1 Initial release.

  Updated document format. Removed power dissipation from Table 1: Absolute maximum ratings .

  28-Apr-2009

  2 Added R values to Table 1 .

  THJA , R ESD and T THJC, LEAD

  Updated package information in .

   Chapter 6 Added Table 8: Order codes . Added pin connections for QFN16 package in Figure 1 on page 2 . Added thermal information for QFN16 package in Table 1 on page 3 .

  13-Jul-2011

  3 Added QFN16 package information in Chapter 6 .

  Added order codes for QFN16 package in Table 8: Order codes .

  18/19 Doc ID 2159 Rev 3

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  Doc ID 2159 Rev 3 19/19

  Universitas Sumatera Utara

LCD-016M002B

  Vishay 16 x 2 Character LCD

  FEATURES

• • 5 x 8 dots with cursor
• • Built-in controller (KS 0066 or Equivalent)
• • + 5V power supply (Also available for + 3V)
• • 1/16 duty cycle
• • B/L to be driven by pin 1, pin 2 or pin 15, pin 16 or A.K (LED)
• • N.V. optional for + 3V power supply

  MECHANICAL DATA ABSOLUTE MAXIMUM RATING

ITEM STANDARD VALUE UNIT

  Module Dimension 80.0 x 36.0 mm MIN. TYP. MAX. Viewing Area 66.0 x 16.0 mm Power Supply

  VDD-VSS 7.0 - - 0.3

  V Dot Size 0.56 x 0.66 mm

  VI - 0.3 - Input Voltage

  VDD

  V Character Size 2.96 x 5.56 mm NOTE: VSS = 0 Volt, VDD = 5.0 Volt

  ELECTRICAL SPECIFICATIONS

ITEM SYMBOL CONDITION STANDARD VALUE UNIT MIN. TYP. MAX.

  Input Voltage

  VDD

  VDD = + 5V

  4.7

  5.0

  5.3 V

  VDD = + 3V

  2.7

  3.0

  5.3 V

• VDD = 5V

  1.2 3.0 mA Supply Current

  IDD

• - - 20 C - Recommended LC Driving

  VDD - V0 C

  4.2

  4.8

  5.1 V Voltage for Normal Temp. 25 C

  3.8

  4.2

  4.6 Version Module 50 C

  3.6

  4.0

  4.4

70 C -

• - 25 C

  4.2 4.6 - LED Forward Voltage

  VF V 25 C

• 130 260 LED Forward Current

  IF Array mA 20 -

  40 Edge 5.0 - - EL Power Supply Current

  IEL Vel = 110VAC:400Hz mA

  DISPLAY CHARACTER ADDRESS CODE:

  Display Position

  1

  2

  3

  4

  5

  6

  7

  8

  9

  10 11 12 13 14 15

  16 DD RAM Address

  00

  01

  0F

  40

  41

  4F DD RAM Address

Document Number: 37217 For Technical Questions, Contact: Displays@Vishay.com www.vishay.com

Revision 01-Oct-02

  31 Universitas Sumatera Utara

  LCD-016M002B

16 x 2 Character LCD

  Vishay SYMBOL FUNCTION PIN NUMBER

  Vss GND

  1 Vdd + 3V or + 5V

  2 Vo Contrast Adjustment

  3 RS H/L Register Select Signal

  4 R/W H/L Read/Write Signal

  5 E H L Enable Signal

  6 DB0 H/L Data Bus Line

  7 DB1 H/L Data Bus Line

  8 DB2 H/L Data Bus Line

  9 DB3 H/L Data Bus Line

  10 DB4 H/L Data Bus Line

  11 DB5 H/L Data Bus Line

  12 DB6 H/L Data Bus Line

  13 DB7 H/L Data Bus Line

  14 A/Vee + 4.2V for LED/Negative Voltage Output

  15 K Power Supply for B/L (OV)

  16 DIMENSIONS in millimeters

  3.55

  2.95

  0.6

  0.6

  0.55 DOT SIZE

  5 .7

  5

  5 .6 .5 .9

  5

  5

  80.0  0.5

  71.2 .4

  4.95 66.0 (VA)

  7.55 56.2 (AA)

  12.45

  6

  5

  6 P2.54* 15 = 38.1

  8.0 H1 MAX

  9.7 MAX .7 .5 .7

  1

  2 5 .5 .2 .5 .8

  1

  1

  1

  2 5 16 Ø 1.0 PTH

  2

  9

  3.0

  1.8 H2

  5.1

  1

  16 K .3

  8 .5 1 ) ) A A

    .2

  8 (V (A

  8 .0

  5 1 .0 .0 2 .0

  3

  5

  6

  3 .5 .0

  1

  3

  1

  6

  1

  1 A

  1.6

  1.6 4 Ø 1.0 40.55 4-Ø 2.5 PTH 4-Ø 5.0 PAD

  2.5

  75.0 EL OR NO B/L

  LED - H/L B/L

  HIGH LOW H1

  13.2

  12.1 H2

  8.6

  7.5

www.vishay.com For Technical Questions, Contact: Displays@Vishay.com Document Number: 37217

  32 Revision 01-Oct-02 Universitas Sumatera Utara

  Universitas Sumatera Utara

  Universitas Sumatera Utara

  Universitas Sumatera Utara

  Universitas Sumatera Utara

  Universitas Sumatera Utara

  Universitas Sumatera Utara This datasheet has been download from: Datasheets for electronics components.

  Universitas Sumatera Utara