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Switching Characteristics

Dans le document ~ Semiconductor National Corporation (Page 100-104)

over recommended operating free air temperature range (Note 1).

Symbol Parameter Conditions DM54ALS01 DM74ALS01

Units

Min Max Min Max

tpLH Propagation Delay Time Vee = 4.5V to 5.5V

23 66 23 54 ns

Low to High Level Output RL = 2 kn tpHL Propagation Delay Time CL = 50pF

High to Low Level Output 8 39 4 28 ns

Note 1: See Section 1 for test waveforms and output load.

~ Semiconductor

NatiOnal

Corporation

DM54ALS02/DM74ALS02 Quad 2-lnput NOR Gates

General Description

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

Features

• Switching specifications at 50 pF

• Switching specifications guaranteed over full tempera-ture and Vee range

Connection Diagram

• Advanced oxide-isolated, ion-implanted Schottky TTL process

• Functionally and pin for pin compatible with Schottky and low power Schottky

TTL

counterpart

• Improved AC performance over Schottky and low pow-er Schottky countpow-erparts

Dual-ln-L1ne Package

Function Table

Vee Y4 B4 A4 Y3 83

11

7

Y1 A1 Y2 A2 82 GND

TLlF/6175-1

Order Number DM54ALS02J, DM74ALS02M or DM74ALS02N See NS Package Number J 14A, M 14A or N 14A

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

Absolute Maximum Ratings

If MlJltary/Aerospace specified devices are required, Note: The ''Absolute Maximum Ratings" are those values contact the National Semiconductor Sales Offlcel beyond which the safety of the device cannot be guaran-Distributors for avallablJlty and specifications. 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 Operating Free Air Temperature Range the conditions for actual device operation.

DM54ALS - 55·C to + 125·C

DM74ALS O·Cto +70·C

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

Recommended Operating Conditions

Symbol Parameter DM54ALS02 DM74ALS02

Units

Min Nom Max Min Nom Max

Vee Supply Voltage 4.5 5 5.5 4.5 5 5.5 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. All typical values are measured at Vee

=

5V. T A

=

25·C.

Symbol Parameter Conditions Min Typ Max Units

VIK Input Clamp Voltage Vee

=

4.5V,11

=

-18 mA -1.5 V

VOH High Level Output 10H

=

-0.4 mA

Vee - 2 V

Voltage Vee

=

4.5V to 5.5V

VOL Low Level Output Vee

=

4.5V 54174ALS

0.25 0.4 V

Voltage 10L

=

4mA

74ALS

0.35 0.5 V

10L

=

8mA II Input Current @ Max. Vee

=

5.5V, VIH

=

7V

0.1 mA

Input Voltage

IIH High Level Input Current Vee

=

5.5V, VIH

=

2.7V 20 itA

IlL Low Level Input Current Vee

=

5.5V, VIL

=

O.4V -0.1 mA

10 Output Drive Current Vee

=

5.5V Vo

=

2.25V -30 -112 mA

Icc Supply Current Vee

=

5.5V Outputs High 0.85 2.2 mA

Outputs Low 2.16 4 mA

Switching Characteristics

over recommended operating free air temperature range (Note 1).

Symbol Parameter Conditions DM54ALS02 DM74ALS02

Units

Min Max Min Max

tpLH Propagation Delay Time Vee

=

4.5V to 5.5V

1 18 3 12 ns

Low to High Level Output RL

=

5000 tpHL Propagation Delay Time CL

=

50pF

High to Low Level Output 1 11 3 10 ns

Note 1: See Section 1 for test waveforms and output load.

2-10

~ Semiconductor

NatiOnal

Corporation

DM54ALS03B/DM74ALS03B Quad 2-lnput NAND Gates with 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.

Pull-Up Resistor Equations

R Vee (Min) - VOH MAX = Nl (IOH)

+

N2 (IIH) R Vee (Max) - VOL

MIN

=

IOL - N3 (110

Where: Nl (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 (110 = total maximum input low current for all inputs tied to pull-up resistor

Connection Diagram

Features

• Switching specifications at 50 pF

• Switching specifications guaranteed over full tempera-ture and Vee range

• Advanced oxide-isolated, ion-implanted Schottky TIL process

• Functionally and pin for pin compatible with Schottky and low power Schottky TIL counterpart

• Improved AC performance over Schottky and low pow-er Schottky countpow-erparts

Dual·ln·Llne Package

Function Table

Vee B4 A4 Y4 83 A3 Y3

8

TLIF/6176-1 Order Number DM54ALS03BJ, DM74ALS03BM or DM74ALS03BN

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

2·11

Output Y H H H L

Absolute Maximum Ratings

If Military/Aerospace specified devices are required, Note: The "Absolute Maximum Ratings" are those values contact the National Semiconductor Sales Office/ beyond which the safety of the device cannot be guaran-Distributors for availability and specifications. 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 High Level Output Voltage 7V the conditions for actual device operation.

Operating Free Air Temperature Range

DM54ALS - 55°C to

+

125°C

DM74ALS O°Cto

+

70°C

Storage Temperature Range - 65°C to

+

150°C

Recommended Operating Conditions

Symbol Parameter DM54ALS03B DM74ALS03B

Units

Min Nom Max Min Nom Max

Vee Supply Voltage 4.5 5 5.5 4.5 5 5.5 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 rnA

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

Electrical Characteristics

over recommended operating free air temperature range. All typical values are measured at Vee = 5V, T A = 25°C.

Symbol Parameter Conditions Min Typ Max Units

VIK Input Clamp Voltage Vee = 4.5V, II = -18 rnA -1.5 V

IOH High Level Output Current Vee

=

4.5V, VOH

=

5.5V 100 p,A

VOL Low Level Output Vee = 4.5V 54174ALS

0.25 0.4 V

Voltage IOL =4 rnA

74ALS

0.35 0.5 V

IOL = 8mA II Input Current @ Max. Vee = 5.5V, VIH = 7V

0.1 rnA

Input Voltage

IIH High Level Input Current Vee = 5.5V, VIH = 2.7V 20 p,A

IlL Low Level Input Current Vee

=

5.5V, VIL = O.4V -0.1 rnA

lee Supply Current Vee = 5.5V Outputs High 0.43 0.85 rnA

Outputs Low 1.62 3 rnA

Dans le document ~ Semiconductor National Corporation (Page 100-104)