Philips Semiconductors

Product data

CBT3306

Dual bus switch

2001 Nov 08

4

AC CHARACTERISTICS

TO

LIMITS

SYMBOL

PARAMETER

FROM (INPUT)

TO

(OUTPUT)

UNIT

(OUTPUT)

MIN

MAX

A or B

B or A

—

0.25

ns

Output enable time

to High and Low level

OE

A or B

1.8

5

ns

Output disable time

from High and Low level

OE

A or B

1

5

ns

NOTE:

1. The propagation delay is the calculated RC time constant of the typical on-state resistance of the switch and the specified load capacitance,

when driven by an ideal voltage source (zero output impedance).

AC WAVEFORMS

INPUT

1.5 V

OUTPUT

SA00028

1.5 V

1.5 V

1.5 V

3 V

0 V

Waveform 1. Input to Output Propagation Delays

Output Control

(Low-level

enabling )

1.5 V

3.5 V

0 V

SA00029

1.5 V

1.5 V

1.5 V

0 V

3 V

Output

Waveform 1

S1 at 7 V

(see Note)

Note:

Waveform 1 is for an output with internal conditions such that

the output is low except when disabled by the output control.

Waveform 2 is for an output with internal conditions such that

the output is high except when disabled by the output control.

Output

Waveform 2

S1 at Open

(see Note)

Waveform 2. 3-State Output Enable and Disable Times

NOTES:

TEST CIRCUIT AND WAVEFORMS

500

Ω

Load Circuit

DEFINITIONS

Load capacitance includes jig and probe capacitance;

see AC CHARACTERISTICS for value.

TEST

S1

open

7 V

open

SA00012

500

Ω

From Output

Under Test

S1

7 V

Open

GND

NOTES:

1. All input pulses are supplied by generators having the following

characteristics: PRR

2. The outputs are measured one at a time with one transition per

measurement.