SN54F520, SN74F520

8-BIT IDENTITY COMPARATORS

SDFS081A – MARCH 1987 – REVISED OCTOBER 1993

2–4

POST OFFICE BOX 655303

switching characteristics (see Note 3)

PARAMETER

FROM

(INPUT)

TO

(OUTPUT)

VCC = 5 V,

CL = 50 pF,

RL = 500 Ω,

TA = 25°C

VCC = 4.5 V to 5.5 V,

CL = 50 pF,

RL = 500 Ω,

TA = MIN to MAX†

UNIT

(INPUT)

(OUTPUT)

′F520

SN54F520

SN74F520

MIN

TYP

MAX

MIN

MAX

MIN

MAX

tPLH

PorQ

PQ

3.9

5.7

7.7

3.7

10.2

3.7

8.7

ns

tPHL

P or Q

P = Q

4.7

7

9.3

4.4

11.3

4.4

10.3

ns

tPLH

OE

P=Q

3.5

4.6

5.8

3.4

7

3.4

6.4

ns

tPHL

OE

P = Q

5.2

7.5

9.5

4.9

11.2

4.9

10.4

ns

† For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.

NOTE 3: Load circuits and waveforms are shown in Section 1.