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IDT74LVC4245A

CMOS OCTAL BUS TRANSCEIVER AND 3.3V TO 5V SHIFTER WITH 3-STATE OUTPUTS AND 5 VOLT TOLERANT I/O

Integrated Device Technology 

IDT74LVC4245A

CMOS OCTAL BUS TRANSCEIVER AND 3.3V TO 5V SHIFTER

LOAD CIRCUIT AND VOLTAGE WAVEFORMS

PARAMETER MEASUREMENT INFORMATION (B PORT)

INDUSTRIAL TEMPERATURE RANGE

TEST CONDITIONS

From Output

Under Test

CL = 50pF

(see Note A)

500Ω

500Ω

7V

S1

Open

GND

TEST

tPLH / tPHL

tPLZ / tPZL

tPHZ / tPZH

S1

Open

7V

GND

Load Circuit

Input

tW

1.5V

3V

1.5V

0V

Voltage Waveforms Pulse Duration

3V

Input

1.5V

1.5V

tPLH

0V

tPHL

VOH

Output

1.5V

1.5V

VOL

Voltage Waveforms Propagation Delay Times

Noninverting Outputs

Output

Control

tPZL

Output

Waveform 1

S1 at 7V

(see Note B)

tPZH

Output

Waveform 2

S1 at GND

(see Note B)

1.5V

tPLZ

1.5V

tPHZ

1.5V

3V

1.5V

0V

3.5V

VOL+0.3V

VOL

VOH

VOH-0.3V

0V

Voltage Waveforms Enable and Disable Times

Low- and High-Level Enabling

NOTES:

A. CL includes probe and jig capacitance.

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.

C . All input pulses are supplied by generators having the following characteristics: PRR ≤ 10MHz; Zo = 50Ω; tF ≤ 2.5ns; tR ≤ 2.5ns.

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

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