7

PS8600B

02/09/06

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PI74AVC164245LA

16-Bit 1.5-2.5V to 3.3V Level Shifting

Transceiver with 3-State Outputs

Output

Control

(low-level

enabling)

Output

Waveform 2

S1 at GND

3.0V

0V

2.5V

0V

Output

Waveform 1

S1 at 6V

1.5V

1.5V

1.25V

1.25V

From Output

Under Test

GND

Open

500

Ω

500

Ω

Input

3.0V

1.5V

1.25V

1.5V

1.25V

0V

Output

Figure 2. Load Circuit and Voltage Waveforms

Load Circuit

Voltage Waveforms

Propagation Delay Times

Voltage Waveforms

Enable and Disable Times

Notes:

• 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 pulses are supplied by generators having the following characteristics: PRR

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

t

s

e

T1

S

P

L

P

Z

P

t

Z

H

P

Z

P

n

e

p

O

V

×

2

C

C

D

N

G

06-0016