SN54HC244, SN74HC244
OCTAL BUFFERS AND LINE DRIVERS
WITH 3-STATE OUTPUTS
SCLS130D – DECEMBER 1982 – REVISED AUGUST 2003
switching characteristics over recommended operating free-air temperature range, C = 50 pF
L
(unless otherwise noted) (see Figure 1)
T
A
= 25°C
TYP
40
SN54HC244
SN74HC244
FROM
(INPUT)
TO
(OUTPUT)
PARAMETER
V
UNIT
CC
MIN
MAX
115
23
MIN
MAX
170
34
MIN
MAX
145
29
2 V
4.5 V
6 V
t
t
t
t
A
Y
Y
Y
Y
13
ns
pd
en
dis
t
11
20
29
25
2 V
75
150
30
225
45
190
38
OE
OE
4.5 V
6 V
15
ns
ns
ns
13
26
38
32
2 V
75
150
30
225
45
190
38
4.5 V
6 V
15
13
26
38
32
2 V
28
60
90
75
4.5 V
6 V
8
12
18
15
6
10
15
13
switching characteristics over recommended operating free-air temperature range, C = 150 pF
L
(unless otherwise noted) (see Figure 1)
T
A
= 25°C
TYP
56
SN54HC244
SN74HC244
FROM
(INPUT)
TO
(OUTPUT)
PARAMETER
V
UNIT
CC
MIN
MAX
165
33
MIN
MAX
245
49
MIN
MAX
210
42
2 V
4.5 V
6 V
t
pd
t
en
t
t
A
Y
Y
Y
18
ns
15
28
42
35
2 V
100
20
200
40
300
60
250
50
OE
4.5 V
6 V
ns
ns
17
34
51
43
2 V
45
210
42
315
63
265
53
4.5 V
6 V
17
13
36
53
45
operating characteristics, T = 25°C
A
PARAMETER
TEST CONDITIONS
TYP
UNIT
C
Power dissipation capacitance per buffer/driver
No load
35
pF
pd
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TI [ TEXAS INSTRUMENTS ]
