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參數(shù)資料
| 型號： | SNJ54BCT8245AJT |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 總線收發(fā)器 |
| 英文描述： | BCT/FBT SERIES, 8-BIT BOUNDARY SCAN TRANSCEIVER, TRUE OUTPUT, CDIP24 |
| 封裝： | CERAMIC, DIP-24 |
| 文件頁數(shù)： | 13/30頁 |
| 文件大?。?/td> | 630K |
| 代理商： | SNJ54BCT8245AJT |
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SN54BCT8245A, SN74BCT8245A
SCAN TEST DEVICES
WITH OCTAL BUS TRANSCEIVERS
SCBS043E MAY 1990 REVISED JULY 1996
20
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 772511443
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (test mode) (see Figure 9)
SN74BCT8245A
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC = 5 V,
TA = 25°C
MIN
MAX
UNIT
(INPUT)
(OUTPUT)
MIN
TYP
MAX
MIN
MAX
fmax
TCK
20
MHz
tPLH
TCK
↓
BorA
6
13
15.5
6
20
ns
tPHL
TCK
↓
B or A
6
12.5
15.5
6
20
ns
tPLH
TCK
↓
TDO
3.5
7.6
10.5
3.5
13
ns
tPHL
TCK
↓
TDO
3.5
8
10.5
3.5
12
ns
tPLH
TCK
↑
BorA
7.5
16.5
20
7.5
24
ns
tPHL
TCK
↑
B or A
7.5
17
21
7.5
25
ns
tPZH
TCK
↓
BorA
6.5
14
17
6.5
21
ns
tPZL
TCK
↓
B or A
7
15
20
7
23
ns
tPZH
TCK
↓
TDO
3.5
7.6
10.5
3.5
11
ns
tPZL
TCK
↓
TDO
4
8.5
11
4
12.5
ns
tPZH
TCK
↑
BorA
8
18
22
8
27
ns
tPZL
TCK
↑
B or A
8
19
25
8
29
ns
tPHZ
TCK
↓
BorA
6
14
18
6
22
ns
tPLZ
TCK
↓
B or A
6
14
17
6
21
ns
tPHZ
TCK
↓
TDO
3
8
11.5
3
12.5
ns
tPLZ
TCK
↓
TDO
3
7.5
10
3
12
ns
tPHZ
TCK
↑
BorA
8
18.5
22
8
27
ns
tPLZ
TCK
↑
B or A
8
18.5
22
8
27
ns
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