Datasheet

December 1990 5
Philips Semiconductors Product specification
9-bit odd/even parity generator/checker 74HC/HCT280
DC CHARACTERISTICS FOR 74HC
For the DC characteristics see “74HC/HCT/HCU/HCMOS Logic Family Specifications” .
Out put capability: standard
I
CC
category: MSI
AC CHARACTERISTICS FOR 74HC
GND = 0 V; t
r
=t
f
= 6 ns; C
L
= 50 pF
SYMBOL PARAMETER
T
amb
(°C)
UNIT
TEST CONDITIONS
74HC
V
CC
(V)
WAVEFORMS
+25 −40 to +85 −40 to +125
min. typ. max. min. max. min. max.
t
PHL
/ t
PLH
propagation delay
I
n
to ∑
E
55
20
16
200
40
34
250
50
43
300
60
51
ns 2.0
4.5
6.0
Fig.6
t
PHL
/ t
PLH
propagation delay
I
n
to ∑
O
63
23
18
200
40
34
250
50
43
300
60
51
ns 2.0
4.5
6.0
Fig.6
t
THL
/ t
TLH
output transition time 19
7
6
75
15
13
95
19
16
110
22
19
ns 2.0
4.5
6.0
Fig.6