HD74HC42
Recommended Operating Conditions
Item
Supply voltage
Input / Output voltage
Operating temperature
Input rise / fall time
Note:
*1
Symbol
V
CC
V
IN
, V
OUT
Ta
t
r
, t
f
Ratings
2 to 6
0 to V
CC
–40 to 85
0 to 1000
0 to 500
0 to 400
Unit
V
V
°C
Conditions
V
CC
= 2.0 V
ns
V
CC
= 4.5 V
V
CC
= 6.0 V
1. This item guarantees maximum limit when one input switches.
Waveform: Refer to test circuit of switching characteristics.
Electrical Characteristics
Ta = 25°C
Item
Input voltage
Symbol V
CC
(V)
V
IH
2.0
4.5
6.0
V
IL
2.0
4.5
6.0
2.0
4.5
6.0
4.5
6.0
V
OL
2.0
4.5
6.0
4.5
Input current
Quiescent supply
current
Iin
I
CC
6.0
6.0
6.0
Min
1.5
3.15
4.2
—
—
—
1.9
4.4
5.9
4.18
5.68
—
—
—
—
—
—
—
Typ
—
—
—
—
—
—
2.0
4.5
6.0
—
—
0.0
0.0
0.0
—
—
—
—
Max
—
—
—
0.5
1.35
1.8
—
—
—
—
—
0.1
0.1
0.1
0.26
0.26
±0.1
4.0
Ta = –40 to+85°C
Min
1.5
3.15
4.2
—
—
—
1.9
4.4
5.9
4.13
5.63
—
—
—
—
—
—
—
Max
—
—
—
0.5
1.35
1.8
—
—
—
—
—
0.1
0.1
0.1
0.33
0.33
±1.0
40
V
I
OH
= –4 mA
I
OH
= –5.2 mA
Vin = V
IH
or V
IL
I
OL
= 20
µA
V
Unit
V
Test Conditions
Output voltage
V
OH
V
Vin = V
IH
or V
IL
I
OH
= –20
µA
I
OL
= 4 mA
I
OL
= 5.2 mA
µA
Vin = V
CC
or GND
µA
Vin = V
CC
or GND, Iout = 0
µA
Switching Characteristics
(C
L
= 50 pF, Input t
r
= t
f
= 6 ns)
Item
Propagation delay
time
Symbol V
CC
(V)
t
PLH
2.0
4.5
6.0
2.0
4.5
6.0
Output rise time
t
TLH
2.0
4.5
6.0
2.0
4.5
6.0
Input capacitance
Cin
—
Ta = 25°C
Ta = –40 to +85°C
Unit
Min
Typ Max
Min
Max
—
—
—
—
—
—
—
—
—
—
—
—
—
—
13
—
—
13
—
—
5
—
—
5
—
5
150
30
26
150
30
26
75
15
13
75
15
13
10
—
—
—
—
—
—
—
—
—
—
—
—
—
190
38
33
190
38
33
95
19
16
95
19
16
10
pF
ns
ns
Test Conditions
t
PHL
ns
Output fall time
t
THL
ns
Rev.2.00, Oct 06, 2005 page 3 of 7
RENESAS [ RENESAS TECHNOLOGY CORP ]
