74HC5555 datasheet(8/23 Pages) PHILIPS

8 / 23 page

September 1993

Philips Semiconductors

Product speciﬁcation

Programmable delay timer with oscillator

74HC/HCT5555

DC CHARACTERISTICS FOR 74HC

For the DC characteristics see

“74HC/HCT/HCU/HCMOS Logic Family Specifications”.

Output capability: parallel outputs, bus driver; serial output, standard ICC category: MSI.

DC CHARACTERISTICS FOR 74HC

SYM-

BOL

PARAMETER

Tamb (°C)

UNIT

TEST CONDITION

+25

−40 to +85 −40 to +125

VCC

(V)

OTHER

MIN

TYP

MAX

MIN MAX

MIN

MAX

VOH

HIGH level

output voltage

Q and Q

outputs

1.9

4.4

5.9

4.5

6.0

−

1.9

4.4

5.9

−

1.9

4.4

5.9

−

2.0

4.5

6.0

Io = −20 µA

VOH

HIGH level

output voltage

Q and Q

outputs

3.98

5.48

4.32

5.81

−

3.84

5.34

−

3.7

5.2

−

4.5

6.0

Io = −6.0 mA

Io = −7.8 mA

VOH

HIGH level

output voltage

Q and Q

outputs

3.3

4.8

−

4.5

−

2.7

4.2

−

4.5

6.0

Io = −20 mA

VOL

LOW level

output voltage

Q and Q

outputs

−

0.1

−

0.1

−

0.1

2.0

4.5

6.0

Io = 20 µA

VOL

LOW level

output voltage

Q and Q

outputs

−

0.15

0.26

−

0.33

−

0.40

4.5

6.0

Io = 6.0 mA

Io = 7.8 mA

VOL

LOW level

output voltage

Q and Q

outputs

−

0.9

−

1.14

−

1.34

4.5

6.0

Io = 20 mA

Io = 25 mA

VIH

HIGH level

input voltage

RS input

1.7

3.6

4.8

−

1.7

3.6

4.8

−

1.7

3.6

4.8

−

4.5

6.0

VIL

LOW level

input voltage

RS input

−

0.3

0.9

1.2

−

0.3

0.9

1.2

−

0.3

0.9

1.2

2.0

4.5

6.0

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