SN54F27, SN74F27

TRIPLE 3-INPUT POSITIVE-NOR GATES

SDFS042A – MARCH 1987 – REVISED OCTOBER 1993

2–3

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)

′F27

SN54F27

SN74F27

MIN

TYP

MAX

MIN

MAX

MIN

MAX

tPLH

ABor C

Y

1.2

3.1

5

1

6

1

5.5

ns

tPHL

A, B, or C

Y

1

2.1

4.5

1

5.5

1

4.5

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.