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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 (A PORT)

INDUSTRIAL TEMPERATURE RANGE

From Output

Under Test

CL = 50pF

(see Note A)

500Ω

500Ω

2 x VCC

S1

Open

GND

TEST CONDITIONS

TEST

tPLH / tPHL

tPLZ / tPZL

tPHZ / tPZH

S1

Open

2 x VCC

GND

Load Circuit

Input

tW

1.5V

VCC

1.5V

0V

Voltage Waveforms Pulse Duration

VCC

Input

1.5V

1.5V

0V

tPLH

tPHL

VOH

Output 50% VCC

50% VCC

VOL

Voltage Waveforms Propagation Delay Times

Noninverting Outputs

Output

Control

1.5V

tPZL

Output

tPLZ

Waveform 1

S1 at 2 X VCC

(see Note B) 50% VCC

tPZH

tPHZ

Output

Waveform 2 50% VCC

S1 at GND

(see Note B)

3V

1.5V

0V

VCC

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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