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參數(shù)資料
| 型號： | SN54ABT8245FK |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | SCAN TEST DEVICES WITH OCTAL BUS TRANSCEIVERS |
| 中文描述： | 掃描測試設(shè)備與八進制總線收發(fā)器 |
| 文件頁數(shù)： | 21/25頁 |
| 文件大小： | 364K |
| 代理商： | SN54ABT8245FK |
SN54ABT8245, SN74ABT8245
SCAN TEST DEVICES
WITH OCTAL BUS TRANSCEIVERS
SCBS124D – AUGUST 1992 – REVISED DECEMBER 1996
21
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
timing requirements over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (test mode) (see Figure 13)
SN54ABT8245
MIN
SN74ABT8245
MIN
UNIT
MAX
MAX
fclock
tw
Clock frequency
TCK
0
50
0
50
MHz
Pulse duration
TCK high or low
A or B or DIR or OE before TCK
↑
TDI before TCK
↑
TMS before TCK
↑
A or B or DIR or OE after TCK
↑
TDI after TCK
↑
TMS after TCK
↑
Power up to TCK
↑
VCC power up
5
5
ns
7
5
tsu
Setup time
6
6
ns
6
6
0
0
th
Hold time
0
0
ns
0
0
td
tr
Delay time
50*
50
ns
μ
s
Rise time
1*
1
* On products compliant to MIL-PRF-38535, this parameter is not production tested.
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (normal mode) (see Figure 13)
SN54ABT8245
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC = 5 V,
TA = 25
°
C
MIN
2
2
2.5
3
3
3
MIN
MAX
UNIT
TYP
3.5
3.4
4.5
5.2
6.1
5.5
MAX
4.6
4.5
5.8
6.6
7.6
6.9
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
A or B
B or A
2
2
5.8
5.5
6.9
8.1
8.9
ns
OE
B or A
2.5
ns
3
3
3
OE
B or A
ns
8
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (normal mode) (see Figure 13)
SN74ABT8245
VCC = 5 V,
TA = 25
°
C
MIN
TYP
2
3.5
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
MIN
MAX
UNIT
MAX
4.3
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
A or B
B or A
2
4.8
ns
2
3.4
4.2
2
5.1
OE
B or A
2.5
4.5
5.5
2.5
6.8
ns
3
5.2
6
3
7.5
OE
B or A
3
3
6.1
5.5
7.1
6.6
3
3
8.4
7.5
ns
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SN54ABT8245JT | SCAN TEST DEVICES WITH OCTAL BUS TRANSCEIVERS |
| SN54ABT827FK | 10-BIT BUFFERS/DRIVERS WITH 3-STATE OUTPUTS |
| SN54ABT827JT | 10-BIT BUFFERS/DRIVERS WITH 3-STATE OUTPUTS |
| SN74ABT827DB | 10-BIT BUFFERS/DRIVERS WITH 3-STATE OUTPUTS |
| SN54ABT833 | 8-BIT TO 9-BIT PARITY BUS TRANSCEIVERS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SN54ABT8245JT | 制造商:TI 制造商全稱:Texas Instruments 功能描述:SCAN TEST DEVICES WITH OCTAL BUS TRANSCEIVERS |
| SN54ABT827 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:10-BIT BUFFERS/DRIVERS WITH 3-STATE OUTPUTS |
| SN54ABT827FK | 制造商:TI 制造商全稱:Texas Instruments 功能描述:10-BIT BUFFERS/DRIVERS WITH 3-STATE OUTPUTS |
| SN54ABT827JT | 制造商:TI 制造商全稱:Texas Instruments 功能描述:10-BIT BUFFERS/DRIVERS WITH 3-STATE OUTPUTS |
| SN54ABT833 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:8-BIT TO 9-BIT PARITY BUS TRANSCEIVERS |
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