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HD74HC1G66
Rev.8.00, Jan.27.2004, page 7 of 8
V
CC
V
CC
V
CC
t
ZH
t
ZL
t
HZ
t
LZ
V
CC
V
CC
V
CC
V
CC
V
CC
V
OH
V
OL
V
OUT
t
ZH
t
ZL
t
LZ
t
HZ
V
OUT
V
C
V
C
V
IN
GND
GND
Item S1 S2
C
L
=
50 pF
R
L
=
1 kΩ
R
L
=
1 kΩ
GND
GND
90% 90%
50% 50%
50%
10%10%
Waveform - A
Waveform - B
GND
GND
GND
S1 S2
90%
50%
10%
•
t
ZH
, t
ZL
/ t
HZ
, t
LZ
t
r
= 6 ns t
f
= 6 ns
Notes: 1. Waveform - A is for an output with internal conditions such that the output is high
except when disabled by the output control.
2. Waveform - B is for an output with internal conditions such that the output is low
except when disabled by the output control.
GND
V
IN
= V
CC
V
C
V
C
V
CC
V
CC
V
CC
V
OUT
V
OUT
R
L
=
1 kΩ
C
L
=
15 pF
GND
V
CC
/2
• Maximum control frequency
GND
(OFF)
V
C
= GND
V
CC
V
CC
C
IN/OUT
C
IN/OUT
C
IN-OUT
• C
IN/OUT
, C
IN-OUT