Philips Semiconductors

Product specification

74F540, 74F541

Buffers

1990 Jan 08

6

AC ELECTRICAL CHARACTERISTICS

LIMITS

TEST

SYMBOL

PARAMETER

TEST

CONDITIONS

UNIT

CONDITIONS

MIN

TYP

MAX

MIN

MAX

Propagation delay

In to Yn

Waveform 1

3.0

1.5

4.5

2.5

6.5

4.5

2.5

1.5

7.5

5.0

ns

ns

Output Enable time

to High or Low level

74F540

Waveform 3

Waveform 4

2.0

4.0

3.5

7.5

6.5

9.5

2.0

4.0

7.0

10.0

ns

ns

Output Disable time

from High or Low level

Waveform 3

Waveform 4

2.0

2.0

4.0

4.0

6.0

5.5

2.0

2.0

6.5

6.0

ns

ns

Propagation delay

In to Yn

Waveform 2

2.5

3.5

5.0

6.0

6.5

7.0

2.5

3.0

7.0

7.5

ns

ns

Output Enable time

to High or Low level

74F541

Waveform 3

Waveform 4

3.0

3.0

5.5

6.5

7.0

8.5

3.0

3.0

7.5

9.5

ns

ns

Output Disable time

from High or Low level

Waveform 3

Waveform 4

2.0

2.0

4.0

4.0

7.0

7.0

2.0

2.0

7.5

7.5

ns

ns

AC WAVEFORMS

In

Yn

SF01028

Waveform 1. Propagation Delay Data to Outputs for 74F540

VM

VM

VM

VM

Yn

In

tPLH

tPHL

SF00150

Waveform 2. Propagation Delay Data to Outputs for 74F541

OEn

Yn, Yn

0V

SF01030

Waveform 3. 3-State Output Enable Time to High Level

and Output Disable Time from High Level

OEn

Yn, Yn

SF01031

Waveform 4. 3-State Output Enable Time to Low Level

and Output Disable Time from Low Level