CD54AC05, CD74AC05

HEX INVERTERS

WITH OPEN-DRAIN OUTPUTS

SCHS306C – JANUARY 2001 –REVISED JUNE 2002

4

POST OFFICE BOX 655303

PARAMETER MEASUREMENT INFORMATION

tPZL

tPLZ

VCC

0 V

Input

VOLTAGE WAVEFORMS

PROPAGATION DELAY TIMES

NOTES: A. CL includes probe and jig capacitance.

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

≤ 1 MHz, ZO = 50 Ω, tr ≤ 3 ns, tf ≤ 3 ns.

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

50% VCC

50% VCC

Output

VOL

≈VCC

50% VCC

20% VCC

From Output

Under Test

CL = 50 pF

(see Note A)

LOAD CIRCUIT

S1

2

× VCC

R1 = 500

Ω†

R2 = 500

Ω†

† When VCC = 1.5 V, R1 = R2 = 1 kΩ

Figure 1. Load Circuit and Voltage Waveforms