74HC259 Philips, 74HC259 Datasheet - Page 9

• Manufacturer Part Number: 74HC259
• Description: 8-bit addressable latch
• Manufacturer: Philips

Philips Semiconductors
AC CHARACTERISTICS FOR 74HCT
GND = 0 V; t
December 1990
SYMBOL PARAMETER
t
t
t
t
t
t
t
t
t
t
t
PHL
PHL
PHL
PHL
THL
W
W
su
su
h
h
8-bit addressable latch
/ t
/ t
/ t
/ t
TLH
PLH
PLH
PLH
propagation delay
propagation delay
propagation delay
propagation delay
output transition time
LE pulse width
MR pulse width
set-up time
set-up time
hold time
hold time
r
D to Q
A
LE to Q
MR to Q
LOW
LOW
D to LE
A
D to LE
A
= t
n
n
n
f
to Q
to LE
to LE
= 6 ns; C
n
n
n
n
L
= 50 pF
19
18
17
17
0
0
min.
23
25
22
23
11
10
7
10
10
typ.
8
4
25
39
41
38
39
15
max. min. max.
T
9
amb
74HCT
24
23
21
21
0
0
40 TO 85
( C)
49
51
48
49
19
29
27
26
26
0
0
min.
40 TO 125
59
62
57
59
22
max.
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
74HC/HCT259
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
V
TEST CONDITIONS
(V)
Product specification
CC
WAVEFORMS
Fig.7
Fig.8
Fig.6
Fig.9
Figs 6 and 7
Fig.6
Fig.9
Fig.10
Fig.11
Fig.10
Fig.11