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PARAMETER MEASUREMENT INFORMATION

From Output

Under Test

(see Note A)

LOAD CIRCUIT

S1

7 V

Open

GND

500

Ω

500

Ω

VOLTAGE WAVEFORMS

PROPAGATION DELAY TIMES

NONINVERTING OUTPUTS

Output

Control

Output

Waveform 1

S1 at 7 V

(see Note B)

Output

Waveform 2

S1 at GND

(see Note B)

1.5 V

1.5 V

3.5 V

0 V

≈0 V

3 V

VOLTAGE WAVEFORMS

ENABLE AND DISABLE TIMES

LOW- AND HIGH-LEVEL ENABLING

Output

Open

7 V

GND

TEST

S1

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

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

E. All parameters and waveforms are not applicable to all devices.

3 V

0 V

1.5 V

Input

1.5 V

1.5 V

1.5 V

1.5 V

1.5 V

3 V

0 V

1.5 V

1.5 V

Input

VOLTAGE WAVEFORMS

PULSE DURATION

SN74LVC4245A-EP

OCTAL BUS TRANSCEIVER AND 3.3-V TO 5-V SHIFTER

WITH 3-STATE OUTPUTS

SCAS742 – DECEMBER 2003 – REVISED AUGUST 2005

B PORT

Figure 2. Load Circuit and Voltage Waveforms

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