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參數(shù)資料
| 型號(hào)： | SCAN182245BSSMQB |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Non-Inverting Transceiver with 25OHM Series Resistor Outputs |
| 中文描述： | 非反相與25OHM系列電阻器輸出 |
| 文件頁(yè)數(shù)： | 15/18頁(yè) |
| 文件大?。?/td> | 231K |
| 代理商： | SCAN182245BSSMQB |
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AC Operating Requirements
Scan Test Operation
Symbol
Parameter
V
CC
*
(V)
Military
Commercial
Units
T
A
e b
55
§
C to
a
125
§
C
C
L
e
50 pF
T
A
e b
40
§
C to
a
85
§
C
C
L
e
50 pF
Guaranteed Minimum
t
S
Setup Time
Data to TCK (Note 1)
5.0
4.8
ns
t
H
Hold Time
Data to TCK (Note 1)
5.0
2.5
ns
t
S
Setup Time, H or L
G1, G2 to TCK (Note 2)
5.0
4.1
ns
t
H
Hold Time, H or L
TCK to G1, G2 (Note 2)
5.0
1.7
ns
t
S
Setup Time, H or L
DIR1, DIR2 to TCK (Note 4)
5.0
4.2
ns
t
H
Hold Time, H or L
TCK to DIR1, DIR2 (Note 4)
5.0
2.3
ns
t
S
Setup Time
Internal OE to TCK (Note 3)
5.0
3.8
ns
t
H
Hold Time, H or L
TCK to Internal OE (Note 3)
5.0
2.3
ns
t
S
Setup Time, H or L
TMS to TCK
5.0
8.7
ns
t
H
Hold Time, H or L
TCK to TMS
5.0
1.5
ns
t
S
Setup Time, H or L
TDI to TCK
5.0
6.7
ns
t
H
Hold Time, H or L
TCK to TDI
5.0
5.0
ns
t
W
Pulse Width TCK
H
L
5.0
10.2
8.5
ns
f
max
Maximum TCK
Clock Frequency
5.0
50
MHz
t
PU
Wait Time,
Power Up to TCK
5.0
100
ns
t
DN
Power Down Delay
0.0
100
ms
*
Voltage Range 5.0V
g
0.5V
All Input Timing Delays involving TCK are measured from the rising edge of TCK.
Note 1:
Timing pertains to the TYPE1 BSR and TYPE2 BSR after the buffer (BSR 0–8, 9–17, 18–26, 27–35, 36–44, 45–53, 54–62, 63–71).
Note 2:
Timing pertains to BSR 74 and 78 only.
Note 3:
Timing pertains to BSR 72, 73, 76 and 77 only.
Note 4:
Timing pertains to BSR 75 and 79 only.
Capacitance
Symbol
Parameter
Typ
Units
Conditions, T
A
e
25
§
C
V
CC
e
0.0V (G
n
, DIR
n
)
V
CC
e
5.0V (A
n
, B
n
)
C
IN
C
I/O
(Note 1)
Input Capacitance
5.9
pF
Output Capacitance
13.7
pF
Note 1:
C
I/O
is measured at frequency f
e
1 MHz, per MIL-STD-883B, Method 3012.
http://www.national.com
15
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