SN54HCT244, SN74HCT244
OCTAL BUFFERS AND LINE DRIVERS
WITH 3-STATE OUTPUTS
SCLS175D 鈥?MARCH 1984 鈥?REVISED AUGUST 2003
switching characteristics over recommended operating free-air temperature range, C
L
= 150 pF
(unless otherwise noted) (see Figure 1)
PARAMETER
tpd
ten
tt
FROM
(INPUT)
A
TO
(OUTPUT)
Y
Y
Y
VCC
4.5 V
5.5 V
4.5 V
5.5 V
4.5 V
5.5 V
TA = 25掳C
MIN
TYP
MAX
21
18
25
22
17
14
45
40
52
47
42
38
SN54HCT244
MIN
MAX
68
61
79
71
63
57
SN74HCT244
MIN
MAX
56
51
65
59
53
48
UNIT
ns
ns
ns
OE
operating characteristics, T
A
= 25掳C
PARAMETER
Cpd
Power dissipation capacitance per buffer/driver
TEST CONDITIONS
No load
TYP
40
UNIT
pF
4
POST OFFICE BOX 655303
鈥?/div>
DALLAS, TEXAS 75265
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