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參數(shù)資料
| 型號： | SN74ABT182502A |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Scan Test Devices With 18-Bit Universal Bus Transceivers(掃描測試裝置(帶18位通用總線收發(fā)器)) |
| 中文描述： | 掃描測試設(shè)備與18位通用總線收發(fā)器（掃描測試裝置（帶18位通用總線收發(fā)器）） |
| 文件頁數(shù)： | 31/35頁 |
| 文件大?。?/td> | 738K |
| 代理商： | SN74ABT182502A |
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SN54ABT18502A, SN54ABT182502A, SN74ABT18502A, SN74ABT182502A
SCAN TEST DEVICES WITH
18-BIT UNIVERSAL BUS TRANSCEIVERS
SCBS488 – AUGUST 1994
31
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
TA = 25
°
C
TYP
SN54ABT182502A
MIN
SN74ABT182502A
MIN
UNIT
MIN
MAX
MAX
MAX
VIK
VCC = 4.5 V,
VCC = 4.5 V,
VCC = 5 V,
II = –18 mA
IOH = – 3 mA
IOH = – 3 mA
IOH = – 24 mA
IOH = – 32 mA
IOH = – 1 mA
IOH = – 1 mA
IOH = – 3 mA
IOH = – 12 mA
IOL = 48 mA
IOL = 64 mA
IOL = 8 mA
IOL = 12 mA
–1.2
–1.2
–1.2
V
VOH
A port TDO
A port, TDO
2.5
2.5
2.5
V
3
3
3
VCC= 4 5 V
VCC = 4.5 V
2
2
2*
2
B port
VCC = 4.5 V,
VCC = 5 V,
3.35
3.3
3.35
3.85
3.8
3.85
VCC= 4 5 V
VCC = 4.5 V
3.1
3
3.1
2.6*
2.6
VOL
A port TDO
A port, TDO
VCC= 4 5 V
VCC = 4.5 V
0.55
0.55
V
0.55*
0.55
B port
VCC= 4 5 V
VCC = 4.5 V
0.8
0.8
0.65
0.8*
0.8
II
CLK, LE,
TCK
VCC = 0 to 5.5 V,
VI = VCC or GND
VCC = 5.5 V,
VI = VCC or GND
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 2.1 V to 5.5 V,
VO = 2.7 V, OE = 2 V
VCC = 2.1 V to 5.5 V,
VO = 0.5 V, OE = 2 V
VCC = 0 to 2.1 V,
VO = 2.7 V or 0.5 V, OE = 0.8 V
VCC = 2.1 V to 0,
VO = 2.7 V or 0.5 V, OE = 0.8 V
VCC = 0, VI or VO
≤
4.5 V
VCC = 5.5 V,
VO = 5.5 V
VCC = 5.5 V,
VO = 2.5 V
VCC = 5.5 V,
VO = 2.5 V
±
1
±
1
±
1
μ
A
A or B ports
±
20
±
20
±
20
IIH
IIL
OE, TDI, TMS
VI = VCC
VI = GND
10
10
10
μ
A
μ
A
OE, TDI, TMS
–150
–150
–150
IOZH
10
10
10
μ
A
IOZL
–10
–10
–10
μ
A
IOZPU
±
50
±
50
μ
A
IOZPD
±
50
±
50
μ
A
Ioff
ICEX
±
100
50
±
100
μ
A
μ
A
Outputs high
50
50
A port, TDO
–50
–110
–200
–50
–200
–50
–200
mA
IO§
B port
–25
–55
–100
–25
–100
–25
–100
ICC
Outputs high
VCC = 5.5 V,
IO
VI = VCC or
GND
A or B ports
1.6
2.2
2.2
2.2
Outputs low
21
27
27
27
mA
Outputs
disabled
0.9
2
2
2
ICC
VCC = 5.5 V, One input at 3.4 V,
Other inputs at VCC or GND
1.5
1.5
1.5
mA
* On products compliant to MIL-STD-883, Class B, this parameter does not apply.
All typical values are at VCC = 5 V.
The parameters IOZH and IOZL include the input leakage current.
§Not more than one output should be tested at a time, and the duration of the test should not exceed one second.
This is the increase in supply current for each input that is at the specified TTL voltage level rather than VCC or GND.
P
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