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PARAMETER MEASUREMENT INFORMATION

From Output

Under Test

(see Note A)

LOAD CIRCUIT FOR A OUTPUTS

S1

6 V

Open

GND

500

Ω

500

Ω

TEST

S1

Open

6 V

GND

Output

Control

(see Note B)

Output

Waveform 1

S1 at 6 V

(see Note C)

Output

Waveform 2

S1 at GND

(see Note C)

3 V

0 V

0 V

≈0 V

3 V

0 V

0 V

3 V

0 V

Input

(see Note B)

3 V

3 V

3 V

VOLTAGE WAVEFORMS

SETUP AND HOLD TIMES

VOLTAGE WAVEFORMS

PROPAGATION DELAY TIMES

VOLTAGE WAVEFORMS

PULSE DURATION

VOLTAGE WAVEFORMS

ENABLE AND DISABLE TIMES

(A port)

Timing

Input

Data Input

A Port

Output

Input

Test

Point

(see Note A)

From Output

Under Test

25

Ω

LOAD CIRCUIT FOR B OUTPUTS

0 V

Input

(see Note B)

VOLTAGE WAVEFORMS

PROPAGATION DELAY TIMES

Output

0 V

Data Input

B Port

B. All input pulses are supplied by generators having the following characteristics: PRR

C. 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.

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

1.5 V

1.5 V

1.5 V

1.5 V

1.5 V

1.5 V

1.5 V

1.5 V

1.5 V

1.5 V

SN54GTL16612, SN74GTL16612

18-BIT LVTTL-TO-GTL/GTL+ UNIVERSAL BUS TRANSCEIVERS

SCBS480K – JUNE 1994 – REVISED JULY 2005

V

Figure 1. Load Circuits and Voltage Waveforms

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