c General Description

§

DM54LS12/DM74LS12 Triple 3-lnput NAND Gates

~ with Open-Collector Outputs

:::::IE

This device contains three independent gates each of which performs the logic NAND function. The open-collector out-puts require external pull-up resistors for proper logical op-eration.

Connection Diagram

Dual-In-Llne Package

vee CI VI CJ BJ AJ VJ

14 13 12 11 10

AI BI A2 B2 C2 V2 GND

TL/F/6351-1

Order Number DM54LS12J, DM74LS12M or DM74LS12N See NS Package Number J14A, M14A or N14A

Pull-Up Resistor Equations

R Vee (Min) - VOH MAX = Nl (lOH) + N2 (IIH) R Vee (Max) - VOL

MIN = IOL - Ns (lIU

Where: Nl (lOH) = total maximum output high current for all outputs tied to pull-up resistor

N2 (IIH) = total maximum input high current for all inputs tied to pull-up resistor

N3 (lIU = total maximum input low current for all inputs tied to pull-up resistor

Function Table

y = AB Inputs

A B C

X X L

X L X

L X X

H H H

H = High Logic Level L = Low Logic Level

Output Y H H H L

X = Either Low or High Logic Level

Absolute Maximum Ratings

^(Note)

Specifications for Military/Aerospace products are not Note: The "Absolute Maximum Ratings" are those values contained In this datasheet. Refer to the associated beyond which the safety of the device cannot be guaran-reliability electrical test specifications document. teed The device should not be operated at these limits. The Supply Voltage 7V parametric values defined in the "Electrical Characteristics"

Input Voltage 7V table are not guaranteed at the absolute maximum ratings.

The "Recommended Operating Conditions" table will define

Output Voltage 7V the conditions for actual device operation.

Operating Free Air Temperature Range

DM54LS - 55·C to + 125·C

DM74LS O·Cto +70·C

Storage Temperature Range - 65·C to + 150·C

Recommended Operating Conditions

Symbol Parameter DM54LS12 DM74LS12

Units

Min Nom Max Min Nom Max

Vcc Supply Voltage 4.5 5 5.5 4.75 5 5.25 V

VIH High Level Input Voltage 2 2 V

VIL Low Level Input Voltage 0.7 0.8 V

VOH High Level Output Voltage 5.5 5.5 V

IOL Low Level Output Current 4 8 mA

TA Free Air Operating Temperature -55 125 0 70

·c

Electrical Characteristics

over recommended operating free air temperature range (unless otherwise noted)

Symbol Parameter Conditions Min Typ

Max Units

(Note 1)

VI Input Clamp Voltage Vcc

=

Min, II

=

-18 mA -1.5 V

ICEX High Level Output Vcc

=

Min, Vo

=

5.5

100 IJ-A

Current VIL

=

^Max

VOL Low Level Output Vcc

=

Min, IOL

=

Max DM54 0.25 0.4

Voltage VIH

=

Min DM74 0.35 0.5 V

IOL

=

^{4 mA, Vcc}

=

^Min ^DM74 ^0.25 ^0.4

II Input Current @ Max Vcc

=

Max, VI

=

0.1 mA

Input Voltage

IIH High Level Input Current Vcc

=

^{Max, VI}

=

^2.7V ²⁰ ^IJ-A

IlL Low Level Input Current Vcc

=

^{Max, VI}

=

^0.4V ^-0.36 ^mA

ICCH Supply Current with Vcc

=

Max

0.7 1.4 mA

Outputs High

ICCL Supply Current with Vcc

=

Max

1.8 3.3 mA

Outputs Low

Switching Characteristics

^{at Vcc}

=

^{5V and TA}

=

25°C (See Section 1 for Test Waveforms and Output Load) RL

=

^2kO

Symbol Parameter CL

=

15pF CL

=

^50pF ^Units

Min Max Min Max

tpLH Propagation Delay Time

6 20 20 45 ns

Low to High Level Output tpHL Propagation Delay Time

3 15 4 20 ns

High to Low Level Output Note 1: All typicals are at Vee = 5V, TA = 2S'C.

2-23

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~ ~NatiOnal

Semiconductor

Corporation

...

c

C;; DM54LS14/DM74LS14 Hex Inverters

..J

~ with Schmitt Trigger Inputs

c

General Description

This device contains six independent gates each of which performs the logic INVERT function. Each input has hyster-esis which increases the noise immunity and transforms a slowly changing input signal to a fast changing, jitter free output.

Connection Diagram

Dual-In-Line Package

A6 V6 AS VS

Al Vl A2 V2 AJ

A4 V4

VJ Order Number DM54LS14J, DM74LS14M or DM74LS14N

See NS Package Number J14A, M14A or N14A

Function Table

Y=A

Input A L H H = High Logic Level L = Low Logic Level

Output Y H L

TLIF/6353-1

Absolute Maximum Ratings

^(Note)

Specifications for Military/Aerospace products are not Note: The "Absolute Maximum Ratings" are those values contained In this datasheet. Refer to the associated beyond which the safety of the device cannot be guaran-reliability electrical test specifications document. teed. The device should not be operated at these limits. The Supply Voltage 7V parametric values defined in the "Electrical Characteristics"

Input Voltage 7V table are not guaranteed at the absolute maximum ratings.

The "Recommended Operating Conditions" table wHl define Operating Free Air Temperature Range the conditions for actual device operation.

DM54LS - 55°C to + 125°C

DM74LS O°Cto +70°C

Storage Temperature Range - 65°C to + 150°C

Recommended Operating Conditions

Symbol Parameter DM54LS14 DM74LS14

Units

Min Nom Max Min Nom Max

Vee Supply Voltage 4.5 5 5.5 4.75 5 5.25 V

VT+ Positive-Going Input

1.4 1.6 1.9 1.4 1.6 1.9 V

Threshold Voltage (Note 1) VT- Negative-Going Input

0.5 0.8 1 0.5 0.8 1 V

Threshold Voltage (Note 1)

HYS Input Hysteresis (Note 1) 0.4 0.8 0.4 0.8 V

10H High Level Output Current -0.4 -0.4 rnA

10l Low Level Output Current 4 8 rnA

TA Free Air Operating Temperature -55 125 0 70 °C

Electrical Characteristics

over recommended operating free air temperature range (unless otherwise noted)

Symbol Parameter Conditions Min Typ

Max Units

(Note 2)

VI Input Clamp Voltage Vee = Min, II = -18 rnA -1.5 V

VOH High Level Output Vee = Min, 10H = Max DM54 2.5 3.4

Voltage Vil = Max DM74 2.7 3.4 V

VOL Low Level Output Vee = Min, 10l = Max DM54 0.25 0.4

Voltage VIH = Min DM74 0.35 0.5 V

Vee = Min, 10l = 4 rnA DM74 0.25 0.4

IT+ Input Current at Vee = 5V, VI = VT+

-0.14 rnA

Positive-Going Threshold

IT- Input Current at Vee = 5V, VI =

VT--0.18 rnA

Negative-Going Threshold

II Input Current @ Max Vee = Max, VI = 7V

0.1 rnA

Input Voltage

IIH High Level Input Current Vee = Max, VI = 2.7V 20 ILA

III Low Level Input Current Vee = Max, VI = O.4V -0.4 rnA

los Short Circuit Vee = Max DM54 -20 -100

Output Current (Note 3) DM74 -20 -100 rnA

leeH Supply Current with Vee = Max

8.6 16 rnA

Outputs High

leel Supply Current with Vee = Max

12 21 rnA

Outputs Low Note 1: vce = 5V.

Note 2: All typicals are at Vee = 5V, T A = 25°C.

Note 3: Not more than one output should be shorted at a time, and the duration should not exceed one second.

Switching Characteristics

^{at Vee}⁼^{5V and TA}⁼25°C (See Section 1 for Test Waveforms and Output Load) RL = 2 kfl

Symbol Parameter CL = 15pF CL = 50pF Units

Min Max Min Max

tpLH Propagation Delay Time

5 22 8 25 ns

Low to High Level Output tpHL Propagation Delay Time

5 22 10 33 ns

High to Low Level Output

I

~ Semiconductor

^NatiOnal

Corporation

DM54LS20/DM74LS20 Dual 4-lnput NAND Gates

General Description

This device contains two independent gates each of which performs the logic NAND function.

Connection Diagram

Dual-ln-L1ne Package

ViC

114

AI 02

BI C2

12 NIC

"

CI 82

A2 V2

1 -

)0

-VI Order Number DM54LS20J, DM74LS20M or DM74LS20N

See NS Package Number J14A, M14A or N14A

Function Table

y = ABCD

Inputs Output

A B C D Y

X X X L H

X X L X H

X L X X H

L X X X H

H H H H L

H = High Logic Level L = Low Logic Level

X = Either Low or High Logic Level

TL/F/6355-1

c s:

U1 ~

r- en

N o ...

s:

...

r-en

N o

Absolute Maximum Ratings

^(Note)

Input Voltage 7V table are not guaranteed at the absolute maximum ratings.

The "Recommended Operating Conditions" table will define Operating Free Air Temperature Range the conditions for actual device operation.

DM54LS - 55°C to

+

^125°C

DM74LS O°Cto

+

^70°C

Storage Temperature Range - 65°C to

+

^150°C

Recommended Operating Conditions

Symbol Parameter DM54LS20 DM74LS20

Units

Min Nom Max Min Nom Max

Vcc Supply Voltage 4.5 5 5.5 4.75 5 5.25 V

VIH High Level Input Voltage 2 2 V

Vil Low Level Input Voltage 0.7 0.8 V

10H High Level Output Current -0.4 -0.4 mA

10L Low Level Output Current 4 8 mA

TA Free Air Operating Temperature -55 125 0 70 °C

Electrical Characteristics

over recommended operating free air temperature range (unless otherwise noted)

Symbol Parameter Conditions Min Typ

Max Units

(Note 1)

VI Input Clamp Voltage Vce = Min, II = -18 mA -1.5 V

VOH High Level Output Vce = Min, 10H = Max, DM54 2.5 3.4

Voltage VIL = ^Max _DM74 _2.7 _3.4 V

VOL Low Level Output Vee = Min, 10L = Max, DM54 0.25 0.4

Voltage VIH = ^Min _DM74 _0.35 _0.5 _V

10l = 4 mA, Vee = Min DM74 0.25 0.4

II Input Current @ Max Vce = Max, VI = 7V 0.1 mA

Input Voltage

IIH High Level Input Current Vee = Max, VI = 2.7V 20 p.A

III Low Level Input Current Vee = Max, VI = O.4V -0.36 mA

los Short Circuit Vee = ^Max ^DM54 ^-20 ^-100 _mA

Output Current (Note 2) DM74 -20 -100

lecH Supply Current with Vee = Max 0.4 0.8 mA

Outputs High

lecl Supply Current with Vee = ^Max _1.2 _2.2 _mA

Outputs Low

Switching Characteristics

^{at Vee}= 5V and TA = 25°C (See Section 1 for Test Waveforms and Output Load) RL = ²kn

Symbol Parameter CL = ^{15 pF} ^CL= 50pF Units

Min Max Min Max

tpLH Propagation Delay Time

3 10 4 15 ns

Low to High Level Output tpHL Propagation Delay Time

3 10 4 15 ns

High to Low Level Output

~ Semiconductor

^NatiOnal

Corporation

DM54LS21/DM74LS21 Dual 4-lnput AND Gates

General Description

This device contains two independent gates each of which performs the logic AND function.

Connection Diagram

Dual-In-Llne Package

ViC 114

AI 02

1:2 82

12 10

1:1 01

A2 V2

1

-... ~

}

-VI Order Number DM54LS21J, DM74LS21M or DM74LS21N

See NS Package Number J 14A, M 14A or N 14A

Function Table

Y = ABCD

Inputs Output

A B C D Y

X X X L L

X X L X L

X L X X L

L X X X L

H H H H H

H = High Logic Level L = Low Logic Level

X = Either Low or High Logic Level

2·29

TL/F/6356-1

Absolute Maximum Ratings

^(Note)

Specifications for Military/Aerospace products are not Note: The "Absolute Maximum Ratings" are those values contained In this datasheet. Refer to the associated beyond which the safety of the device cannot be guaran-reliability electrical test specifications document. teed. The device should not be operated at these limits. The Supply Voltage 7V parametric values defined in the "E/ectrical Characteristics"

Input Voltage 7V table are not guaranteed at the absolute maximum ratings.

The "Recommended Operating Conditions" table will define Operating Free Air Temperature Range the conditions for actual device operation.

DM54LS - 55·C to + 125·C

DM74LS O·Cto +70·C

Storage Temperature Range - 65·C to + 150·C

Recommended Operating Conditions

Symbol Parameter DM54LS21 DM74LS21

Units

Min Nom Max Min Nom Max

Vce Supply Voltage 4.5 5 5.5 4.75 5 5.25 V

VIH High Level Input Voltage 2 2 V

VIL Low Level Input Voltage 0.7 0.8 V

10H High Level Output Current -0.4 -0.4 mA

10L Low Level Output Current 4 8 mA

TA Free Air Operating Temperature -55 125 0 70 ·C

Electrical Characteristics

over recommended operating free air temperature range (unless otherwise noted)

Symbol Parameter Conditions Min Typ

Max Units

(Note 1)

VI Input Clamp Voltage Vee

=

^Min,ll

=

^{-18 mA} ^-1.5 ^V

VOH High Level Output Vee

=

^Min,lOH

=

^Max, ^DM54 ^2.5 ^3.4 _V

Voltage VIH

=

Min DM74 2.7 3.4

VOL Low Level Output Vec

=

^Min,lOL

=

^Max, ^DM54 ^0.25 ^0.4

Voltage VIL

=

Max DM74 0.35 0.5 V

10L

=

4 rnA, Vee

=

^Min ^DM74 ^0.25 ^0.4

II Input Current @ Max Vee

=

^{Max, VI}

=

^7V _0.1 _mA

Input Voltage

IIH High Level Input Current Vee

=

^{Max, VI}

=

^2.7V ²⁰ ^p.A

IlL Low Level Input Current Vec

=

^{Max, VI}

=

^O.4V ^-0.36 ^mA

los Short Circuit Vee

=

^Max ^DM54 ^-20 ^-100 _mA

Output Current (Note 2) DM74 -20 -100

leeH Supply Current with Vec

=

^Max _1.2 _2.4 _mA

Outputs High

IceL Supply Current with Vee

=

^Max _2.2 _4.4 _mA

Outputs Low

Switching Characteristics

at Vee

=

SV and TA

=

2S·C (See Section 1 for Test Waveforms and Output Load) RL

=

2kO

Symbol Parameter CL

=

^1SpF ^CL

=

^SOpF ^Units

Min Max Min Max

tpLH Propagation Delay Time

4 13 6 18 ns

Low to High Level Output tpHL Propagation Delay Time

3 11 5 18 ns

~ Semiconductor

^NatiOnal

Corporation

DM54LS26/DM74LS26 Quad 2-lnput NAND Gates with High Voltage Open-Collector Outputs

General Description

This device contains four independent gates each of which performs the logic NAND function. The open-collector out-puts require external pull-up resistors for proper logical op-eration.

These gates feature high-voltage output ratings (up to 15V) for interfacing with 12V systems. Although the outputs are rated for 15V, the device supply is still rated for 5V.

Connection Diagram

Pull-Up Resistor Equations

R Vo (Min) - VOH MAX = N1 (IOH)

+

N2 (IIH) R Vo (Max) - VOL

MIN = IOL - N3 (lIU

Where: N 1 (IOH) = total maximum output high current for all outputs tied to pull-up resistor

N2 (IIH) = total maximum input high current for all inputs tied to pull-up resistor

N3 (IIU = total maximum input low current for all inputs tied to pull-up resistor

Dual·ln·Llne Package

Function Table

vee 84 A4 V4 B3 A3 V3

14 13 12 11 10

AI 81 VI A2 B2 V2 GND

Order Number DM54LS26J, DM74LS26M or DM74LS26N See NS Package Number J14A, M14A or N14A

y = AB Inputs

A B

L L

L H

H L

H H

H = High Logic Level L = Low Logic Level

2-31

Output Y H H H L

TL/F/6356-1

Absolute Maximum Ratings

^(Note)

Input Voltage 7V table are not guaranteed at the absolute maximum ratings.

The "Recommended Operating Conditions" table will define

Output Voltage 15V the conditions for actual device operation.

Operating Free Air Temperature Range

DM54LS - 55°C to + 125°C

DM74LS O°C to +70°C

Storage Temperature Range - 65°C to + 150°C

Recommended Operating Conditions

Symbol Parameter DM54LS26 DM74LS26

Units

Min Nom Max Min Nom Max

Vcc Supply Voltage 4.5 5 5.5 4.75 5 5.25 V

VIH High Level Input Voltage 2 2 V

Vil Low Level Input Voltage 0.7 0.8 V

VOH High Level Output Voltage 15 15 V

IOl Low Level Output Current 4 8 rnA

TA Free Air Operating Temperature -55 125 0 70 °C

Electrical Characteristics

over recommended operating free air temperature range (unless otherwise noted)

Symbol Parameter Conditions Min Typ

Max Units

(Note 1)

VI Input Clamp Voltage Vec = Min, II = -18 rnA -1.5 V

ICEX High Level Output Vcc = Min Vo = 15V 1000

Current Vil = Max Vo = 12V 50 p,A

VOL Low Level Output Vcc = Min, IOl = Max OM 54 0.25 0.4

Voltage VIH = Min DM74 0.35 0.5 V

IOl = 4 rnA, Vee = Min DM74 0.25 0.4

II Input Current @ Max Vee = Max, VI = 7V

0.1 rnA

Input Voltage

IIH High Level Input Current Vec = Max, VI = 2.7V 20 p,A

III Low Level Input Current Vee = Max, VI = O.4V -0.36 rnA

ICCH Supply Current with Vee = Max

0.8 1.6 rnA

Outputs High

lecl Supply Current with Vce = Max

2.4 4.4 rnA

Outputs Low

Switching Characteristics

^{at Vee}= 5V and T A = 25°C (See Section 1 for Test Waveforms and Output Load) RL = 2kn

Symbol Parameter Conditions CL = 15 pF Units

Min Max

tpLH Propagation Delay Time

32 ns

Low to High Level Output tpHL Propagation Delay Time

28 ns

High to Low Level Output

~ Semiconductor

^NatiOnal

Corporation

DM54LS27/DM74LS27 Triple 3-lnput NOR Gates

General Description

This device contains three independent gates each of which performs the logic NOR function.

Connection Diagram

Dual-In-Llne Package

Vee Cl VI C3 83

14 13 12 11

Al 81 A2 62 C2

AJ V3

V2 GND

Order Number DM54LS27J, DM74LS27M or DM74LS27N See NS Package Number J14A, M14A or N14A

Function Table

Y=A+B Inputs

A B

L L

L H

H L

H H

H = High Logic Level L = Low Logic Level

Output Y H L L L

TL/F/6359-1

Absolute Maximum Ratings

^(Note)

Specifications for Military/Aerospace products are not Note: The ''Absolute Maximum Ratings" are those values contained In this datasheet. Refer to the associated beyond which the safety of the device cannot be guaran-reliability electrical test specifications document. teed The device should not be operated at these limits. The Supply Voltage 7V parametric values defined in the "Electrical Characteristics"

Input Voltage 7V table are not guaranteed at the absolute maximum ratings.

The "Recommended Operating Conditions" table wt1l define Operating Free Air Temperature Range the conditions for actual device operation.

DM54LS - 55°C to + 125°C

DM74LS O°Cto +70°C

Storage Temperature Range - 65°C to + 150°C

Recommended Operating Conditions

Symbol Parameter DM54LS27 DM74LS27

Units

Min Nom Max Min Nom Max

Vcc Supply Voltage 4.5 5 5.5 4.75 5 5.25 V

VIH High Level Input Voltage 2 2 V

Vil Low Level Input Voltage 0.7 0.8 V

IOH High Level Output Current -0.4 -0.4 mA

IOl Low Level Output Current 4 8 mA

TA Free Air Operating Temperature -55 125 0 70 °C

Electrical Characteristics

over recommended operating free air temperature range (unless otherwise noted)

Symbol Parameter Conditions Min Typ

Max Units

(Note 1)

VI Input Clamp Voltage Vee

=

^{Min, II}

=

^{-18 mA} ^-1.5 ^V

VOH High Level Output Vee

=

Min, IOH

=

Max, DM54 2.5 3.4

Voltage Vil

=

^Max _DM74 _2.7 _3.4 V

VOL Low Level Output Vce

=

Min, IOl

=

Max, DM54 0.25 0.4

Voltage VIH

=

^Min _DM74 _0.35 _0.5 _V

IOl

=

4 mA, Vee

=

Min DM74 0.25 0.4

II Input Current @ Max Vee

=

Max, VI

=

7V 0.1 mA

Input Voltage

IIH High Level Input Current Vee

=

^{Max, VI}

=

^2.7V ²⁰ ^,.,.A

III Low Level Input Current Vee

=

Max, VI

=

0.4V -0.36 mA

los Short Circuit Vee

=

^Max ^DM54 ^-20 ^-100 _mA

Output Current (Note 2) DM74 -20 -100

leCH Supply Current with Vee

=

Max

2 4 mA

Outputs High

leel Supply Current with Vee

=

^Max _3.4 _6.8 _mA

Outputs Low

Switching Characteristics

^{at Vee}

=

5V and T A

=

25°C (See Section 1 for Test Waveforms and Output Load) RL

=

^2kn

Symbol Parameter CL

=

^15pF ^CL

=

^{50 pF} ^Units

Min Max Min Max

tpLH Propagation Delay Time

3 13 5 18 ns

Low to High Level Output tpHl Propagation Delay Time

3 10 4 15 ns

~ Semiconductor

^NatiOnal

Corporation

DM54LS30/DM74LS30 a-Input NAND Gate

General Description

This device contains a single gate which performs the logic NAND function.

Connection Diagram

Dual-ln-L1ne Package

12 II

/10

GND

P

Order Number DM54LS30J, DM74LS30M or DM74LS30N See NS Package Number J14A, M14A or N14A

Function Table

v

= ABCDEFGH Inputs

A thru H All Inputs H One or More Input L

H = High Logic Level L = Low Logic Level

Output

v

L H

TL/F/6360-1

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0l:Io

r en

o

C") tJ) ...J

...

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C") tJ) ...J

:e

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Absolute Maximum Ratings

^(Note)

Specifications for Military/Aerospace products are not Note: The "Absolute Maximum Ratings" are those values contained In this datasheet. Refer to the associated beyond which the safety of the device cannot be guaran-reliability electrical test specifications document. teed The device should not be operated at these limits. The Supply Voltage 7V parametric values defined in the "Electrical Characteristics"

Input Voltage 7V table are not guaranteed at the absolute maximum ratings.

The "Recommended Operating Conditions" table wHl define Operating Free Air Temperature Range the conditions for actual device operation.

DM54LS - 55°C to

+

125°C

DM74LS O°C to

+

70°C

Storage Temperature Range - 65°C to

+

150°C

Recommended Operating Conditions

Symbol Parameter DM54LS30 DM74LS30

Units

Min Nom Max Min Nom Max

Vee Supply Voltage 4.5 5 5.5 4.75 5 5.25 V

VIH High Level Input Voltage 2 2 V

Vil Low Level Input Voltage 0.7 0.8 V

10H High Level Output Current -004 -004 ^mA

10l Low Level Output Current 4 8 mA

TA Free Air Operating Temperature -55 125 0 70 °C

Electrical Characteristics

over recommended operating free air temperature range (unless otherwise noted)

Symbol Parameter Conditions Min Typ

Max Units

(Note 1)

VI Input Clamp Voltage Vee = Min, II = -18 mA -1.5 V

VOH High Level Output Vee = Min, IOH = Max DM54 2.5 3.4

Voltage Vil = Max DM74 2.7 304 V

VOL Low Level Output Vee = Min, IOl = Max DM54 0.25 004

Voltage VIH = Min DM74 0.35 0.5 V

IOl = 4 mA, Vee = Min DM74 0.25 004

II Input Current @ Max Vee = Max, VI = 7V

0.1 mA

Input Voltage

IIH High Level Input Current Vee = Max, VI = 2.7V 20 /-LA

IlL Low Level Input Current Vee = Max, VI = OAV -0.4 mA

los Short Circuit Vee = Max DM54 -20 -100

Output Current (Note 2) DM74 -20 -100 mA

leeH Supply Current with Vee = Max

0.35 0.5 mA

Outputs High

leel Supply Current with Vee = Max

0.6 1.1 mA

Outputs Low

Switching Characteristics

^{at Vee}= 5V and T A = 25°C (See Section 1 for Test Waveforms and Output Load) RL = 2 k!1

Symbol Parameter CL = 15 pF CL = 50 pF Units

Min Max Min Max

tpLH Propagation Delay Time

4 12 5 18 ns

Low to High Level Output tpHl Propagation Delay Time

4 15 5 20 ns

~ Semiconductor

^NatiOnal

Corporation

DM54LS32/DM74LS32 Quad 2-lnput OR Gates

Dans le document Semiconductor Corporation (Page 106-121)