SN54ALS1020A, SN74ALS1020A

DUAL 4INPUT POSITIVENAND BUFFERS

SDAS 242 − D2661, APRIL 1982 − REVISED MAY 1986

POST OFFICE BOX 655303

POST OFFICE BOX 1443

77251−1443

2

absolute maximum ratings over operating free-air temperature range (unless otherwise noted)

7 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Input voltage

7 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating free-air temperature range:

SN54ALS1020A

−55

°C to 125°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SN74ALS1020A

0

°C to 70°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Storage temperature range

−65

°C to 150°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

recommended operating conditions

SN54ALS1020A

SN74ALS1020A

UNIT

MIN

NOM

MAX

MIN

NOM

MAX

UNIT

VCC

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

IOH

High-level output current

−1

− 2.6

mA

IOL

Low-level output current

12

24

mA

TA

Operating free-air temperature

−55

125

0

70

°C

electrical characteristics over recommended operating free-air temperature range (unless

otherwise noted)

PARAMETER

TEST CONDITIONS

SN54ALS1020A

SN74ALS1020A

UNIT

PARAMETER

TEST CONDITIONS

MIN

TYP†

MAX

MIN

TYP†

MAX

UNIT

VIK

VCC = 4.5 V,

II = − 18 mA

− 1.5

− 1.5

V

VCC = 4.5 V to 5.5 V,

IOH = − 0.4 mA

VCC −2

VCC −2

VOH

VCC = 4.5 V,

IOH = − 1 mA

2.4

3.3

V

VCC = 4.5 V,

IOH = − 2.6 mA

2.4

3.3

VOL

VCC = 4.5 V,

IOL = 12 mA

0.25

0.4

0.25

0.4

V

VOL

VCC = 4.5 V,

IOL = 24 mA

0.35

0.5

V

II

VCC = 5.5 V,

VI = 7 V

0.1

0.1

mA

IIH

VCC = 5.5 V,

VI = 2.7 V

20

20

µA

IIL

VCC = 5.5 V,

VI = 0.4 V

− 0.1

− 0.1

mA

IO‡

VCC = 5.5 V,

VO = 2.25 V

−30

−112

−30

−112

mA

ICCH

VCC = 5.5 V,

VI = 0

0.5

0.8

0.5

0.8

mA

ICCL

VCC = 5.5 V,

VI = 4.5 V

2.4

3.9

2.4

3.9

mA

† All typical values are at VCC = 5 V, TA = 25°C.

‡ The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, IOS.

switching characteristics (see Note 1)

VCC = 5 V,

VCC = 4.5 V to 5.5 V,

CL = 50 pF,

CL = 50 pF,

PARAMETER

FROM

TO

RL = 500 Ω,

UNIT

PARAMETER

(INPUT)

(OUTPUT)

TA = 25°C

TA = MIN to MAX

UNIT

’ALS1020A

SN54ALS1020A

SN74ALS1020A

TYP

MIN

MAX

MIN

MAX

tPLH

Any

Y

5

2

10

2

8

ns

tPHL

Any

Y

5

2

10

2

7

ns

NOTE 1: Load circuit and voltage waveforms are shown in Section 1.