Philips Semiconductors
Product specification
8-input NAND gate
DC CHARACTERISTICS FOR 74 HC
For the DC characteristics see
“74HC/HCT/HCU/HCMOS Logic Family Specifications”.
Output capability: standard
I
CC
category: SSI
74HC/HCT30
AC CHARACTERISTICS FOR 74HC
GND = 0 V; t
r
= t
f
= 6 ns; C
L
= 50 pF
T
amb
(°C)
74HC
SYMBOL
PARAMETER
+25
−40
to
+
85
−40
to
+125
UNIT V
CC
(V)
ns
2.0
4.5
6.0
2.0
4.5
6.0
WAVEFORMS
TEST CONDITIONS
min. typ. max. min. max. min. max.
t
PHL
/ t
PLH
propagation delay
A, B, C, D, E, F, G, H to Y
output transition time
41
15
12
19
7
6
130
26
22
75
15
13
165
33
28
95
19
16
195
39
33
110
22
19
Fig.6
t
THL
/ t
TLH
ns
Fig.6
DC CHARACTERISTICS FOR 74HCT
For the DC characteristics see
“74HC/HCT/HCU/HCMOS Logic Family Specifications”.
Output capability: standard
I
CC
category: SSI
Note to HCT types
The value of additional quiescent supply current (∆I
CC
) for a unit load of 1 is given in the family specifications.
To determine
∆I
CC
per input, multiply this value by the unit load coefficient shown in the table below.
INPUT
A, B, C, D, E, F, G, H
UNIT LOAD COEFFICIENT
0.60
AC CHARACTERISTICS FOR 74HCT
GND = 0 V; t
r
= t
f
= 6 ns; C
L
= 50 pF
T
amb
(°C)
74HCT
SYMBOL
PARAMETER
+25
−40
to
+
85
−40
to
+125
UNIT V
CC
(V)
WAVEFORMS
TEST CONDITIONS
min. typ. max. min. max. min. max.
t
PHL
/ t
PLH
t
THL
/ t
TLH
propagation delay
A, B, C, D, E, F, G, H to Y
output transition time
16
7
28
15
35
19
42
22
ns
ns
4.5
4.5
Fig.6
Fig.6
December 1990
5
PHILIPS [ NXP SEMICONDUCTORS ]
