HD74LVC240A
Switching Characteristics
Ta = –40 to 85°C
Item
Propagation delay time
Symbol
t
PLH
t
PHL
t
ZH
t
ZL
t
HZ
t
LZ
V
CC
(V)
2.7
3.3±0.3
5.0±0.5
2.7
3.3±0.3
5.0±0.5
2.7
3.3±0.3
5.0±0.5
2.7
3.3±0.3
5.0±0.5
2.7
2.7
Min
—
1.5
—
—
1.5
—
—
1.5
—
—
—
—
—
—
Typ
—
—
—
—
—
—
—
—
—
—
—
—
3.0
15.0
Max
7.5
6.5
5.0
9.0
8.0
6.5
8.0
7.0
6.0
—
1.0
1.0
—
—
Unit
ns
From
(Input)
A
To
(Output)
Y
Output enable time
ns
G
Y
Output disable time
ns
G
Y
Between output pins skew t
OSLH
*1
t
OSHL
Input capacitance
Output capacitance
Note:
C
IN
C
O
ns
pF
pF
1. This parameter is characterized but not tested.
tos
LH
= | t
PLHm
- t
PLHn
|, tos
HL
= | t
PHLm
- t
PHLn
|
Test Circuit
V
CC
V
CC
1G, 2G
Output
500
Ω
S1
C
L
=
50 pF
450
Ω
50
Ω
Scope
OPEN
See under table
GND
See Function Table
Input
1Y1 to 2Y4
*1
Pulse generator
Z
out
= 50
Ω
1A1 to 2A4
Symbol
t
PLH
/ t
PHL
t
ZH
/ t
HZ
t
ZL
/ t
LZ
S1
Vcc=2.7V,
3.3±0.3V
Vcc=5.0±0.5V
OPEN
GND
6V
OPEN
GND
2×Vcc
Note:
1. C
L
includes probe and jig capacitance.
Rev.4.00 Jul. 26, 2004 page 4 of 6
RENESAS [ RENESAS TECHNOLOGY CORP ]
