6

PI74LVTCH16245

3.3V, 16-Bit Bi-Directional Tranceivers

with 3-State Outputs

PS 8649C

03/14/07

PARAMETER MEASUREMENT INFORMATION

LoadCircuit

t

s

e

T1

S

L

P

H

P

L

P

Z

P

H

P

Z

P

n

e

p

O

V

6

D

N

G

Notes:

B. 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.

•

All input impulses are supplied by generators having the following characteristics: PRR

•

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

Figure 1. Load Circuit and Voltage Waveforms

Voltage Waveforms

Propagation Delay Times

Voltage Waveforms

Enable and Disable Times

Voltage Waveforms

Pulse Duration

Input

0V

Output

1.5V

1.5V

1.5V

2.7V

1.5V

Input

1.5V

2.7V

1.5V

0V

tPZL

Output

Control

(Low Level

Enabling)

0V

1.5V

1.5V

1.5V

1.5V

tPLZ

tPHZ

VOL+0.3V

3V

0V

tPZH

Output

Waveform 1

S1 at 6V

(see Note B)

Output

Waveform 2

S1 at GND

(see Note B)

VOH -0.3V

VOH

VOL

2.7V

500

Ω

500

Ω

6V

Open

GND

S1

From Output

Under Test

CL = 50pF

(See Note A)

06-0215