Philips Semiconductors

Product specification

74LVT2952

3.3V Octal registered transceiver (3-State)

1998 Feb 19

6

AC CHARACTERISTICS

LIMITS

SYMBOL

PARAMETER

WAVEFORM

UNIT

MIN

MAX

MAX

Maximum clock frequency

1

150

200

MHz

Propagation delay

CPBA to An, CPAB to Bn

1

1.3

1.8

3.1

3.8

6.1

6.0

7.1

6.9

ns

Output enable time

OEBA to An, OEAB to Bn

3

4

1.0

1.2

3.4

3.6

5.6

6.5

6.7

8.0

ns

Output disable time

OEBA to An, OEAB to Bn

3

4

1.0

1.6

3.7

3.4

6.3

5.1

6.9

5.3

ns

NOTE:

AC SETUP REQUIREMENTS

LIMITS

SYMBOL

PARAMETER

WAVEFORM

UNIT

MIN

MIN

Setup time

An to CPAB or Bn to CPBA

2

2.5

2.5

1

1

2.8

3.0

ns

Hold time

An to CPAB ro Bn to CPBA

2

1.5

2.5

–0.5

–0.5

0.7

2.6

ns

Setup time

CEAB to CPAB or CEBA to CPBA

2

0.9

2.4

0.3

–0.3

0.8

2.7

ns

Hold time

CEAB to CPAB or CEBA to CPBA

2

1.5

2.5

0.3

0

0.7

2.6

ns

CPAB or CPBA pulse width

High or Low

1

3.3

3.3

1

1

3.3

3.3

ns

AC WAVEFORMS

1.5V

1/fMAX

tw(H)

tw(L)

tPHL

tPLH

CPBA or

CPAB

An or Bn

1.5V

1.5V

1.5V

1.5V

2.7V

0V

SV00040

Waveform 1.

Propagation Delay, Clock Input to Output, Clock

Pulse Width, and Maximum Clock Frequency

An, Bn

CEAB,

CEBA

CPAB,

CPBA

ts(H)

th(H)

ts(L)

th(L)

1.5V

1.5V

1.5V

1.5V

1.5V

1.5V

2.7V

0V

2.7V

0V

NOTE: The shaded areas indicate when the input is permitted

to change for predictable output performance.

SV00131

Waveform 2.

Data Setup and Hold Times