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| 型號(hào)： | SN54ABT18502HVR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 總線收發(fā)器 |
| 英文描述： | ABT SERIES, DUAL 9-BIT BOUNDARY SCAN REG TRANSCEIVER, TRUE OUTPUT, CQFP68 |
| 封裝： | CERAMIC, QFP-68 |
| 文件頁(yè)數(shù)： | 21/30頁(yè) |
| 文件大?。?/td> | 451K |
| 代理商： | SN54ABT18502HVR |
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SN54ABT18502, SN74ABT18502
SCAN TEST DEVICES WITH
18-BIT REGISTERED BUS TRANSCEIVERS
SCBS109B – AUGUST 1992 – REVISED JUNE 1993
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
28
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (normal mode) (see Figure 13)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC = 5 V,
TA = 25°C
SN54ABT18502
SN74ABT18502
UNIT
(INPUT)
(OUTPUT)
MIN
TYP
MAX
MIN
MAX
MIN
MAX
fmax
CLKAB or CLKBA
100
130
100
MHz
tPLH
AorB
BorA
2
3.8
5.6
2
6.5
2
6
ns
tPHL
A or B
B or A
2
3.8
5.6
2
7.2
2
6
ns
tPLH
CLKAB or CLKBA
BorA
2.5
4.7
5.7
2.5
7.2
2.5
6
ns
tPHL
CLKAB or CLKBA
B or A
2.5
4.7
5.7
2.5
7.1
2.5
6
ns
tPLH
LEAB or LEBA
BorA
2.5
4.9
6.4
2.5
7.5
2.5
7
ns
tPHL
LEAB or LEBA
B or A
2.5
4.9
6.5
2.5
7.8
2.5
7
ns
tPZH
OEAB or OEBA
BorA
2
4.9
6.3
2
7.5
2
7
ns
tPZL
OEAB or OEBA
B or A
2.5
5.6
7.2
2.5
8.3
2.5
8
ns
tPHZ
OEAB or OEBA
BorA
3
6.1
7.8
3
9.6
3
8.8
ns
tPLZ
OEAB or OEBA
B or A
2.5
4.8
6.5
2.5
7.4
2.5
7.3
ns
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (test mode) (see Figure 13)12345
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC = 5 V,
TA = 25°C
SN54ABT18502
SN74ABT18502
UNIT
(INPUT)
(OUTPUT)
MIN
TYP
MAX
MIN
MAX
MIN
MAX
fmax
TCK
50
90
50
MHz
tPLH
TCK
↓
AorB
2.5
9.1
11.4
2.5
14.4
2.5
13.5
ns
tPHL
TCK
↓
A or B
2.5
9.1
10.8
2.5
13.6
2.5
12.4
ns
tPLH
TCK
↓
TDO
2
3.8
5.1
2
6
2
5.6
ns
tPHL
TCK
↓
TDO
2
3.8
5.3
2
6.6
2
6
ns
tPZH
TCK
↓
AorB
4.5
9.5
11.5
4.5
14.2
4.5
13.4
ns
tPZL
TCK
↓
A or B
5
10.1
12.2
5
14.8
5
14
ns
tPZH
TCK
↓
TDO
2.5
4.6
5.9
2.5
7.2
2.5
6.8
ns
tPZL
TCK
↓
TDO
3
5.2
6.8
3
7.9
3
7.5
ns
tPHZ
TCK
↓
AorB
4
11.6
14.3
4
17.5
4
16.3
ns
tPLZ
TCK
↓
A or B
3.5
11.1
13.6
3.5
16.7
3.5
15.3
ns
tPHZ
TCK
↓
TDO
3
5.3
7.2
3
7.7
3
7.6
ns
tPLZ
TCK
↓
TDO
3
5.2
6.8
3
8
3
7.6
ns
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.
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