74HC244 Philips, 74HC244 Datasheet - Page 5

• Manufacturer Part Number: 74HC244
• Description: Octal buffer/line driver 3-state
• Manufacturer: Philips

Philips Semiconductors
DC CHARACTERISTICS FOR 74HC
For the DC characteristics see
Output capability: bus driver
I
AC CHARACTERISTICS FOR 74HC
GND = 0 V; t
December 1990
CC
t
t
t
t
SYMBOL
PHL
PZH
PHZ
THL
Octal buffer/line driver; 3-state
category: MSI
/ t
/ t
/ t
/ t
TLH
PLH
PZL
PLZ
propagation delay
3-state output enable time
3-state output disable time
output transition time
r
1A
2A
1OE to 1Y
2OE to 2Y
1OE to 1Y
2OE to 2Y
= t
f
n
n
= 6 ns; C
to 1Y
to 2Y
PARAMETER
n;
n
n;
n
n;
n
L
= 50 pF
“74HC/HCT/HCU/HCMOS Logic Family Specifications”
min. typ. max. min. max. min. max.
30
11
9
36
13
10
39
14
11
14
5
4
25
110
22
19
150
30
26
150
30
26
60
12
10
5
T
amb
74HC
40 to 85
( C)
145
28
24
190
38
33
190
38
33
75
15
13
40 to 125
165
33
28
225
45
38
225
45
38
90
18
15
.
ns
ns
ns
ns
UNIT
74HC/HCT244
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
(V)
Product specification
CC
Fig.5
Fig.6
Fig.6
Fig.5
WAVEFORMS