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參數(shù)資料
| 型號(hào)： | SNJ54BCT8244AFKR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類(lèi)： | 總線(xiàn)收發(fā)器 |
| 英文描述： | BCT/FBT SERIES, DUAL 4-BIT BOUNDARY SCAN DRIVER, TRUE OUTPUT, CQCC28 |
| 封裝： | CERAMIC, LCC-28 |
| 文件頁(yè)數(shù)： | 11/29頁(yè) |
| 文件大小： | 618K |
| 代理商： | SNJ54BCT8244AFKR |
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SN54BCT8244A, SN74BCT8244A
SCAN TEST DEVICES
WITH OCTAL BUFFERS
SCBS042E FEBRUARY 1990 REVISED JULY 1996
19
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) (normal mode) (see Figure 9)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC = 5 V,
TA = 25°C
SN54BCT8244A
SN74BCT8244A
UNIT
PARAMETER
(INPUT)
(OUTPUT)
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
tPLH
A
Y
2
5.4
7
2
9
2
8.5
ns
tPHL
A
Y
2
5.2
7
2
9
2
8.5
ns
tPZH
OE
Y
3
6
8
3
10
3
9.5
tPZL
OE
Y
3.5
7
9
3.5
12
3.5
11
ns
tPHZ
OE
Y
2.5
6
8
2.5
10
2.5
9
ns
tPLZ
OE
Y
2.5
5.5
8
2.5
10
2.5
9
ns
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (test mode) (see Figure 9)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC = 5 V,
TA = 25°C
SN54BCT8244A
SN74BCT8244A
UNIT
PARAMETER
(INPUT)
(OUTPUT)
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
fmax
TCK
20
MHz
tPLH
TCK
↓
Y
6
13
15.5
6
21.5
6
20
ns
tPHL
TCK
↓
Y
6
12.5
15.5
6
21.5
6
20
ns
tPLH
TCK
↓
TDO
3.5
7.6
10.5
3.5
14
3.5
13
ns
tPHL
TCK
↓
TDO
3.5
8
10.5
3.5
13
3.5
12
ns
tPLH
TCK
↑
Y
7.5
16.5
20
7.5
28
7.5
24
ns
tPHL
TCK
↑
Y
7.5
17
21
7.5
29
7.5
25
ns
tPZH
TCK
↓
Y
6.5
14
17
6.5
24
6.5
21
ns
tPZL
TCK
↓
Y
7
15
20
7
26
7
23
ns
tPZH
TCK
↓
TDO
3.5
7.6
10.5
3.5
11.5
3.5
11
ns
tPZL
TCK
↓
TDO
4
8.5
11
4
13.5
4
12.5
ns
tPZH
TCK
↑
Y
8
18
22
8
30
8
27
ns
tPZL
TCK
↑
Y
8
19
25
8
32
8
29
ns
tPHZ
TCK
↓
Y
6
14
18
6
24
6
22
ns
tPLZ
TCK
↓
Y
6
14
17
6
23
6
21
ns
tPHZ
TCK
↓
TDO
3
8
11.5
3
13
3
12.5
ns
tPLZ
TCK
↓
TDO
3
7.5
10
3
13
3
12
ns
tPHZ
TCK
↑
Y
8
18.5
22
8
31
8
27
ns
tPLZ
TCK
↑
Y
8
18.5
22
8
31
8
27
ns
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