Tap ac switching characteristics – Cypress CY7C1443AV33 User Manual
Page 15
CY7C1441AV33
CY7C1443AV33,CY7C1447AV33
Document #: 38-05357 Rev. *G
Page 15 of 31
TAP AC Switching Characteristics
Over the Operating Range
Parameter
Description
Min.
Max.
Unit
Clock
t
TCYC
TCK Clock Cycle Time
50
ns
t
TF
TCK Clock Frequency
20
MHz
t
TH
TCK Clock HIGH time
20
ns
t
TL
TCK Clock LOW time
20
ns
Output Times
t
TDOV
TCK Clock LOW to TDO Valid
10
ns
t
TDOX
TCK Clock LOW to TDO Invalid
0
ns
Setup Times
t
TMSS
TMS Setup to TCK Clock Rise
5
ns
t
TDIS
TDI Setup to TCK Clock Rise
5
ns
t
CS
Capture Setup to TCK Rise
5
ns
Hold Times
t
TMSH
TMS Hold after TCK Clock Rise
5
ns
t
TDIH
TDI Hold after Clock Rise
5
ns
t
CH
Capture Hold after Clock Rise
5
ns
Notes
9. t
CS
and t
CH
refer to the setup and hold time requirements of latching data from the boundary scan register.
10. Test conditions are specified using the load in TAP AC test Conditions. t
R
/t
F
= 1 ns.