6

PS8650B

06/05/06

PI74LVTCH16244

3.3V 16-Bit Buffer/Line Driver

with 3-State Outputs

12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012

12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012

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.

•

•

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)

06-0214