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| 54F407 Datasheet, PDF (7/10 Pages) National Semiconductor (TI) – DATA ACCESS REGISTER | |||
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AC Electrical Characteristics (Continued)
Symbol
tcw
ts(H)
ts(L)
th(H)
th(L)
ts(H)
ts(L)
th(H)
th(L)
ts(H)
ts(L)
th(H)
th(L)
tw(H)
tw(L)
Parameter
Clock Period
Setup Time HIGH or LOW
I1 â I3 to Negative-Going CP
Hold Time HIGH or LOW
I1 â I3 to Positive-Going CP
Setup Time HIGH or LOW
Dn or C1 to Negative-Going CP
Hold Time HIGH or LOW
Dn or CI to
Negative-Going Clock
Setup Time HIGH or LOW
CI to Positive-Going CP
Hold Time HIGH or LOW
CI to Positive-Going CP
Clock Pulse Width
HIGH or LOW
54F
TA VCC e Mil
CL e 50 pF
Min
Max
36 0
45
45
0
0
18 5
18 5
0
0
14 5
14 5
0
0
85
85
Units
ns
ns
ns
ns
ns
Fig
No
407-c
407-c
407-c
407-c
Ordering Information
The device number is used to form part of a simplified purchasing code where the package type and temperature range are
defined as follows
54F 407 D M QB
Temperature Range Family
54F e Military
Device Type
Package Code
D e Ceramic DIP
SD e Slim Ceramic DIP
F e Flatpak
L e Leadless Chip Carrier (LCC)
Special Variations
QB e Military grade device with
environmental and burn-in
processing
Temperature Range
M e Military (b55 C to a125 C)
7
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