CD74ACT32-Q1

QUADRUPLE 2-INPUT POSITIVE-OR GATE

SCHS351A − JANUARY 2004 − REVISED JANUARY 2008

4

POST OFFICE BOX 655303

PARAMETER MEASUREMENT INFORMATION

VOLTAGE WAVEFORMS

SETUP AND HOLD AND INPUT RISE AND FALL TIMES

10%

10%

90%

90%

3 V

3 V

0 V

0 V

Reference

Input

Data

Input

VOLTAGE WAVEFORMS

PROPAGATION DELAY AND OUTPUT TRANSITION TIMES

50%

10%

10%

90%

90%

3 V

0 V

Input

In-Phase

Output

50%

10%

10%

90%

90%

Out-of-Phase

Output

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

Phase relationships between waveforms are arbitrary.

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

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

From Output

Under Test

(see Note A)

LOAD CIRCUIT

S1

2

R1 = 500

Ω

Open

GND

0 V

VOLTAGE WAVEFORMS

PULSE DURATION

Input

3 V

Open

2

GND

TEST

S1

Output

Control

Output

Waveform 1

S1 at 2

(see Note B)

Output

Waveform 2

S1 at GND

(see Note B)

0 V

≈0 V

VOLTAGE WAVEFORMS

OUTPUT ENABLE AND DISABLE TIMES

3 V

R2 = 500

Ω

VOLTAGE WAVEFORMS

RECOVERY TIME

3 V

0 V

CLR

Input

CLK

3 V

0 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

1.5 V

1.5 V

Figure 1. Load Circuit and Voltage Waveforms