SN54LS05, SN54S05

SN7405, SN74LS05, SN74S05

HEX INVERTERS WITH OPENCOLLECTOR OUTPUTS

SDLS030A − DECEMBER 1983 − REVISED NOVEMBER 2003

7

POST OFFICE BOX 655303

PARAMETER MEASUREMENT INFORMATION

SERIES 54/74 AND 54S/74S DEVICES

From Output

Under Test

CL

(see Note A)

RL

Test Point

VCC

LOAD CIRCUIT

1.5 V

1.5 V

High-Level

Pulse

1.5 V

1.5 V

tw

Low-Level

Pulse

VOLTAGE WAVEFORMS

PULSE WIDTHS

NOTES: A. CL includes probe and jig capacitance.

B. In the examples above, the phase relationships between inputs and outputs have been chosen arbitrarily.

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

≤ 1 MHz, ZO = 50 Ω, and:

For Series 54/74, tr ≤ 7 ns, tf ≤ 7 ns.

For Series 54S/74S, tr ≤ 2.5 ns, tf ≤ 2.5 ns.

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

1.5 V

1.5 V

Input

tPLH

In-Phase

Output

3 V

0 V

1.5 V

1.5 V

VOH

VOL

tPHL

1.5 V

1.5 V

VOH

VOL

tPHL

tPLH

Out-of-Phase

Output

VOLTAGE WAVEFORMS

PROPAGATION DELAY TIMES

Figure 1. Load Circuit and Voltage Waveforms

The SN5405 is obsolete

and no longer is supplied.