参数资料
型号: SNJ54HC244FKR
厂商: TEXAS INSTRUMENTS INC
元件分类: 总线收发器
英文描述: HC/UH SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, CQCC20
封装: CERAMIC, LCC-20
文件页数: 15/20页
文件大小: 756K
代理商: SNJ54HC244FKR
SN54HC244, SN74HC244
OCTAL BUFFERS AND LINE DRIVERS
WITH 3-STATE OUTPUTS
SCLS130D – DECEMBER 1982 – REVISED AUGUST 2003
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
switching characteristics over recommended operating free-air temperature range, CL = 50 pF
(unless otherwise noted) (see Figure 1)
PARAMETER
FROM
TO
VCC
TA = 25°C
SN54HC244
SN74HC244
UNIT
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
t
A
Y
2 V
40
115
170
145
ns
tpd
A
Y
4.5 V
13
23
34
29
ns
pd
6 V
11
20
29
25
t
OE
Y
2 V
75
150
225
190
ns
ten
OE
Y
4.5 V
15
30
45
38
ns
en
6 V
13
26
38
32
t
OE
Y
2 V
75
150
225
190
ns
tdis
OE
Y
4.5 V
15
30
45
38
ns
dis
6 V
13
26
38
32
t
Y
2 V
28
60
90
75
ns
tt
Y
4.5 V
8
12
18
15
ns
t
6 V
6
10
15
13
switching characteristics over recommended operating free-air temperature range, CL = 150 pF
(unless otherwise noted) (see Figure 1)
PARAMETER
FROM
TO
VCC
TA = 25°C
SN54HC244
SN74HC244
UNIT
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
t
A
Y
2 V
56
165
245
210
ns
tpd
A
Y
4.5 V
18
33
49
42
ns
pd
6 V
15
28
42
35
t
OE
Y
2 V
100
200
300
250
ns
ten
OE
Y
4.5 V
20
40
60
50
ns
en
6 V
17
34
51
43
t
Y
2 V
45
210
315
265
ns
tt
Y
4.5 V
17
42
63
53
ns
t
6 V
13
36
53
45
operating characteristics, TA = 25°C
PARAMETER
TEST CONDITIONS
TYP
UNIT
Cpd
Power dissipation capacitance per buffer/driver
No load
35
pF
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