Philips Semiconductors

Product specification

74F298

Quad 2-input multiplexer with storage

1989 Aug 14

4

RECOMMENDED OPERATING CONDITIONS

SYMBOL

PARAMETER

LIMITS

UNIT

SYMBOL

PARAMETER

MIN

NOM

MAX

UNIT

Supply voltage

4.5

5.0

5.5

V

High-level input voltage

2.0

V

Low-level input voltage

0.8

V

Input clamp current

–18

mA

High-level output current

–1

mA

Low-level output current

20

mA

Operating free-air temperature range

0

70

°C

DC ELECTRICAL CHARACTERISTICS

(Over recommended operating free-air temperature range unless otherwise noted.)

NO TAG

LIMITS

SYMBOL

PARAMETER

MIN

TYP

NO TAG

MAX

UNIT

High level output voltage

CC

2.5

V

High-level output voltage

CC

,

IL

,

CC

2.7

3.4

V

Low level output voltage

CC

0.30

0.50

V

Low-level output voltage

CC

,

IL

,

CC

0.30

0.50

V

Input clamp voltage

–0.73

–1.2

V

Input current at maximum input voltage

100

µA

High-level input current

20

µA

Low-level input current

–0.6

mA

–60

–150

mA

Supply current (total)

30

40

mA

Supply current (total)

32

40

mA

NOTES:

1. For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions for the applicable type.

techniques are preferable in order to minimize internal heating and more accurately reflect operational values. Otherwise, prolonged shorting

of a High output may raise the chip temperature well above normal and thereby cause invalid readings in other parameter tests. In any

AC ELECTRICAL CHARACTERISTICS

LIMITS

SYMBOL

PARAMETER

TEST

CONDITION

UNIT

MIN

TYP

MAX

MIN

MAX

Maximum clock frequency

Waveform

NO TAG

110

115

105

ns

Propagation delay

CP tp Qn

Waveform

NO TAG

4.0

4.5

5.5

6.5

7.5

8.5

4.0

4.5

9.0

9.5

ns