SN54HC245, SN74HC245
OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCLS131D – DECEMBER 1982 – REVISED AUGUST 2003
switching characteristics over recommended operating free-air temperature range, C
L
= 50 pF
(unless otherwise noted) (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC
2V
tpd
A or B
B or A
4.5 V
6V
2V
ten
OE
A or B
4.5 V
6V
2V
tdis
OE
A or B
4.5 V
6V
2V
tt
A or B
4.5 V
6V
TA = 25°C
MIN
TYP
MAX
40
15
12
125
23
20
74
25
21
20
8
6
105
21
18
230
46
39
200
40
34
60
12
10
SN54HC245
MIN
MAX
160
32
27
340
68
58
300
60
51
90
18
15
SN74HC245
MIN
MAX
130
26
22
290
58
49
250
50
43
75
15
13
ns
ns
ns
ns
UNIT
switching characteristics over recommended operating free-air temperature range, C
L
= 150 pF
(unless otherwise noted) (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC
2V
tpd
A or B
B or A
4.5 V
6V
2V
ten
OE
A or B
4.5 V
6V
2V
tt
A or B
4.5 V
6V
TA = 25°C
MIN
TYP
MAX
54
18
15
150
31
25
45
17
13
135
27
23
270
54
46
210
42
36
SN54HC245
MIN
MAX
200
40
34
405
81
69
315
63
53
SN74HC245
MIN
MAX
170
34
29
335
67
56
265
53
45
ns
ns
ns
UNIT
operating characteristics, T
A
= 25°C
PARAMETER
Cpd
Power dissipation capacitance per transceiver
TEST CONDITIONS
No load
TYP
40
UNIT
pF
4
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
TI [ TEXAS INSTRUMENTS ]
