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SCAN182245A
AC Operating Requirements
Scan Test Operation
Note 7: Voltage Range 5.0V ± 0.5V
Note 8: 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 9: Timing pertains to BSR 74 and 78 only.
Note 10: Timing pertains to BSR 75 and 79 only.
Note 11: Timing pertains to BSR 72, 73, 76 and 77 only.
Note: All Input Timing Delays involving TCK are measured from the rising edge of TCK.
Capacitance
Note 12: C
I/O
is measured at frequency f = 1 MHz, per MIL-STD-883B, Method 3012.
Symbol Parameter
V
CC
T
A
= −40°C to +85°C
Units
(V)
C
L
= 50 pF
(Note 7) Guaranteed Minimum
t
S
Setup Time
5.0 4.8 ns
Data to TCK (Note 8)
t
H
Hold Time
5.0 2.5 ns
Data to TCK (Note 8)
t
S
Setup Time, H or L
5.0 4.1 ns
G1
, G2 to TCK (Note 9)
t
H
Hold Time, H or L
5.0 1.7 ns
TCK to G1, G2 (Note 9)
t
S
Setup Time, H or L
5.0 4.2 ns
DIR1, DIR2 to TCK (Note 10)
t
H
Hold Time, H or L
5.0 2.3 ns
TCK to DIR1, DIR2 (Note 10)
t
S
Setup Time
5.0 3.8 ns
Internal OE to TCK (Note 11)
t
H
Hold Time, H or L
5.0 2.3 ns
TCK to Internal OE (Note 10)
t
S
Setup Time, H or L
5.0 8.7 ns
TMS to TCK
t
H
Hold Time, H or L
5.0 1.5 ns
TCK to TMS
t
S
Setup Time, H or L
5.0 6.7 ns
TDI to TCK
t
H
Hold Time, H or L
5.0 5.0 ns
TCK to TDI
t
W
Pulse Width TCK: H
5.0
10.2
ns
L8.5
f
MAX
Maximum TCK
5.0 50 MHz
Clock Frequency
t
PU
Wait Time,
5.0 100 ns
Power Up to TCK
t
DN
Power Down Delay 0.0 100 ms
Symbol Parameter Typ Units
Conditions, T
A
= 25°C
C
IN
Input Capacitance 5.9 pF V
CC
= 0.0V (G
n
, DIR
n
)
C
I/O
(Note 12) Output Capacitance 13.7 pF V
CC
= 5.0V (A
n
, B
n
)
