SCAN18540T Просмотр технического описания (PDF) - Fairchild Semiconductor
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SCAN18540T Datasheet PDF : 11 Pages
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AC Electrical Characteristics
Scan Test Operation:
VCC
TA = +25°C
Symbol
Parameter
(V)
CL = 50 pF
(Note 9)
Min
Typ
tPLH,
tPHL
tPLZ,
tPHZ
tPZL,
tPZH
tPLH,
tPHL
Propagation Delay
TCK to TDO
Disable Time
TCK to TDO
Enable Time
TCK to TDO
Propagation Delay
TCK to Data Out
During Update-
5.0
3.5
3.5
5.0
2.5
2.5
5.0
3.0
3.0
5.0
5.0
5.0
-DR State
tPLH,
tPHL
Propagation Delay
TCK to Data Out
During Update-
5.0
5.0
5.0
IR State
tPLH,
tPHL
Propagation Delay
TCK to Data Out
During Test Logic
5.0
5.5
5.5
Reset State
tPLZ,
tPHZ
Propagation Delay
TCK to Data Out
During Update-
5.0
4.0
4.0
DR State
tPLZ,
tPHZ
Propagation Delay
TCK to Data Out
During Update-
5.0
5.0
5.0
IR State
tPLZ,
tPHZ
Propagation Delay
TCK to Data Out
During Test Logic
5.0
5.0
5.0
Reset State
tPZL,
tPZH
Propagation Delay
TCK to Data Out
During Update-
5.0
5.0
5.0
DR State
tPZL,
tPZH
Propagation Delay
TCK to Data Out
During Update-
5.0
6.5
6.5
IR State
tPZL,
tPZH
Propagation Delay
TCK to Data Out
During Test Logic
5.0
7.0
7.0
Reset State
Note 9: Voltage Range 5.0 is 5.0V ± 0.5V.
Note: All Input Timing Delays involving TCK are measured from the rising edge of TCK.
Max
13.2
13.2
11.5
11.5
14.5
14.5
18.0
18.0
18.6
18.6
19.9
19.9
16.4
16.4
19.5
19.5
19.9
19.9
18.9
18.9
22.4
22.4
23.8
23.8
TA = −40°C to +85°C
CL = 50 pF
Min
Max
3.5
14.5
3.5
14.5
2.5
11.9
2.5
11.9
3.0
15.8
3.0
15.8
5.0
19.8
5.0
19.8
Units
ns
ns
ns
ns
5.0
20.2
ns
5.0
20.2
5.5
21.5
ns
5.5
21.5
4.0
18.2
ns
4.0
18.2
5.0
20.8
ns
5.0
20.8
5.0
21.5
ns
5.0
21.5
5.0
20.9
ns
5.0
20.9
6.5
24.2
ns
6.5
24.2
7.0
25.7
ns
7.0
25.7
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