74HC259 Philips, 74HC259 Datasheet - Page 7

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

Philips Semiconductors
DC CHARACTERISTICS FOR 74HC
For the DC characteristics see
Output capability: standard
I
AC CHARACTERISTICS FOR 74HC
GND = 0 V; t
December 1990
CC
SYMBOL PARAMETER
t
t
t
t
t
t
t
t
t
t
PHL
PHL
PHL
PHL
THL
W
W
su
h
h
8-bit addressable latch
category: MSI
/ 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
hold time
hold time
r
= t
D to Q
A
LE to Q
MR to Q
HIGH or LOW
LOW
D, A
D to LE
A
n
n
f
to Q
to LE
= 6 ns; C
n
to LE
n
n
n
n
L
= 50 pF
“74HC/HCT/HCU/HCMOS Logic Family Specifications”
70
14
12
70
14
12
80
16
14
0
0
0
2
2
2
min.
58
21
17
58
21
17
55
20
16
50
18
14
19
7
6
17
6
5
17
6
5
19
7
6
typ.
19
6
5
11
4
3
25
185
37
31
185
37
31
170
34
29
155
31
26
75
15
13
max.
T
7
amb
90
18
15
90
18
15
100
20
17
0
0
0
2
2
2
74HC
min. max.
40 to 85
( C)
230
46
39
230
46
39
215
43
37
195
39
33
95
19
16
105
21
18
105
21
18
120
24
20
0
0
0
2
2
2
min.
40 to 125
280
56
48
280
56
48
255
51
43
235
47
40
119
22
19
max.
.
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
UNIT
74HC/HCT259
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
TEST CONDITIONS
V
Product specification
(V)
CC
WAVEFORMS
Fig.7
Fig.8
Fig.6
Fig.9
Figs 6 and 7
Fig.6
Fig.9
Figs 10 and 11
Fig.10
Fig.11