54ACT11520, 74ACT11520

8BIT IDENTITY COMPARATORS

SCAS009B − D2957, JULY 1987 − REVISED APRIL 1993

POST OFFICE BOX 655303

POST OFFICE BOX 1443

2−4

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

otherwise noted)

PARAMETER

TEST CONDITIONS

VCC

TA = 25°C

54ACT11520

74ACT11520

UNIT

PARAMETER

TEST CONDITIONS

VCC

MIN

TYP

MAX

MIN

MAX

MIN

MAX

UNIT

IOH = − 50 A

4.5 V

4.4

4.4

4.4

IOH = − 50 mA

5.5 V

5.4

5.4

5.4

VOH

IOH = − 24 mA

4.5 V

3.94

3.7

3.8

V

VOH

IOH = − 24 mA

5.5 V

4.94

4.7

4.8

V

IOH = − 50 mA{

5.5 V

3.85

IOH = − 75 mA{

5.5 V

3.85

IOL = 50 A

4.5 V

0.1

0.1

0.1

IOL = 50 mA

5.5 V

0.1

0.1

0.1

VOL

IOL = 24 mA

4.5 V

0.36

0.5

0.44

V

VOL

IOL = 24 mA

5.5 V

0.36

0.5

0.44

V

IOL = 50 mA{

5.5 V

1.65

IOL = 75 mA{

5.5 V

1.65

IIH

VI = VCC, Q inputs only

5.5 V

10

10

10

mA

IIL

VI = GND, Q inputs only

5.5 V

− 0.3

− 0.6

−1

−1

mA

II

VI = VCC or GND, P and G inputs only

5.5 V

± 0.1

± 1

± 1

mA

ICC

Q inputs at GND,

Other inputs VI = VCC or GND

5.5 V

2.3

4.8

8

8

mA

ICC

Q inputs at open,

Other inputs VI = VCC or GND

5.5 V

8

160

80

mA

DICC}

Q inputs open,

One input at 3.4 V and other inputs at

5.5 V

0.9

1

1

mA

DICC}

One input at 3.4 V and other inputs at

VCC or GND, P and G inputs only

5.5 V

0.9

1

1

mA

Ci

VI = VCC or GND

5 V

3.5

pF

† Not more than one output should be tested at a time, and the duration of the test should not exceed 10 ms.

‡ This is the increase in supply current for each input that is at one of the specified TTL voltage levels rather than 0 V or VCC.

switching characteristics over recommended ranges of supply voltage and operating free-air

temperature (unless otherwise noted) (see Figure 1)

PARAMETER

FROM

TO

TA = 25°C

54ACT11520

74ACT11520

UNIT

PARAMETER

FROM

(INPUT)

TO

(OUTPUT)

MIN

TYP

MAX

MIN

MAX

MIN

MAX

UNIT

tPLH

P or Q

P = Q

1.5

8.6

12.7

1.5

15.4

1.5

14.3

ns

tPHL

P or Q

P = Q

1.5

8

12.4

1.5

14.8

1.5

13.9

ns

tPLH

G

P = Q

1.5

6.4

8.5

1.5

10.2

1.5

9.5

ns

tPHL

G

P = Q

1.5

5.8

9

1.5

10.4

1.5

9.8

ns

PARAMETER

TEST CONDITIONS

TYP

UNIT

Cpd

Power dissipation capacitance

CL = 50 pF,

f = 1 MHz

40

pF