SN54HCT04, SN74HCT04

HEX INVERTERS

SCLS042D – JULY 1986 – REVISED JULY 2003

4

POST OFFICE BOX 655303

PARAMETER MEASUREMENT INFORMATION

VOLTAGE WAVEFORM

INPUT RISE AND FALL TIMES

1.3 V

1.3 V

0.3 V

0.3 V

2.7 V

2.7 V

3 V

0 V

tr

tf

Input

VOLTAGE WAVEFORMS

PROPAGATION DELAY AND OUTPUT RISE AND FALL TIMES

1.3 V

1.3 V

1.3 V

10%

10%

90%

90%

3 V

VOH

VOL

0 V

tr

tf

Input

In-Phase

Output

1.3 V

tPLH

tPHL

1.3 V

1.3 V

10%

10%

90%

90%

VOH

VOL

tr

tf

tPHL

tPLH

Out-of-Phase

Output

Test

Point

From Output

Under Test

LOAD CIRCUIT

NOTES: A. CL includes probe and test-fixture capacitance.

B. Phase relationships between waveforms were chosen arbitrarily. All input pulses are supplied by generators having the following

characteristics: PRR

≤ 1 MHz, ZO = 50 Ω, tr = 6 ns, tf = 6 ns.

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

D. tPLH and tPHL are the same as tpd.

CL = 50 pF

(see Note A)

Figure 1. Load Circuit and Voltage Waveforms