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