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Switching Characteristics
Operating Characteristics
PARAMETER MEASUREMENT INFORMATION
t
PZL
t
PLZ
V
CC
0 V
Input
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
NOTES: A. C
L
includes probe and jig capacitance.
B. All input pulses are supplied by generators having the following characteristics: PRR ≤ 1 MHz, Z
O
= 50 Ω, t
r
≤ 3 ns, t
f
≤ 3 ns.
C. The outputs are measured one at a time, with one input transition per measurement.
50% V
CC
50% V
CC
Output
V
OL
≈V
CC
50% V
CC
20% V
CC
From Output
Under Test
C
L
= 50 pF
(see Note A)
LOAD CIRCUIT
S1
2 × V
CC
R1 = 500 Ω
†
R2 = 500 Ω
†
†
When V
CC
= 1.5 V, R1 = R2 = 1 kΩ
CD54ACT05 , , CD74ACT05
HEX INVERTERS
WITH OPEN-DRAIN OUTPUTS
SCHS311C – JANUARY 2001 – REVISED JANUARY 2007
ACT INPUT LOAD TABLE
(1)
Input Unit Load
A 0.18
(1) Unit load is ∆ I
CC
limit specified in
electrical characteristics table
(e.g., 2.4 mA at 25 ° C).
over recommended operating free-air temperature range, V
CC
= 5 V ± 0.5 V, C
L
= 50 pF (unless otherwise noted) (see
Figure 1 )
–40 ° C TO –55 ° C TO
FROM TO
85 ° C 125 ° C
PARAMETER UNIT
(INPUT) (OUTPUT)
MIN MAX MIN MAX
t
PZL
2.4 8.5 2.3 9.3
A or B Y ns
t
PLZ
2.8 9.8 2.7 10.8
V
CC
= 5 V, T
A
= 25°C
PARAMETER TYP UNIT
C
pd
Power dissipation capacitance 105 pF
Figure 1. Load Circuit and Voltage Waveforms
3
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