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Altera Corporation
APEX 20K Programmable Logic Device Family Data Sheet
Note to Table:
(1)
These parameters are worst-case values for typical applications. Post-compilation
timing simulation and timing analysis are required to determine actual worst-case
performance.
Tables 42 and
43 describe the APEX 20KE external timing parameters.
Table 40. APEX 20KE Routing Timing Microparameters
Symbol
Parameter
tF1-4
Fanout delay using Local Interconnect
tF5-20
Fanout delay estimate using MegaLab Interconnect
tF20+
Fanout delay estimate using FastTrack Interconnect
Table 41. APEX 20KE Functional Timing Microparameters
Symbol
Parameter
TCH
Minimum clock high time from clock pin
TCL
Minimum clock low time from clock pin
TCLRP
LE clear Pulse Width
TPREP
LE preset pulse width
TESBCH
Clock high time for ESB
TESBCL
Clock low time for ESB
TESBWP
Write pulse width
TESBRP
Read pulse width
Table 42. APEX 20KE External Timing Parameters
Symbol
Clock Parameter
Conditions
tINSU
Setup time with global clock at IOE input register
tINH
Hold time with global clock at IOE input register
tOUTCO
Clock-to-output delay with global clock at IOE output register
C1 = 35 pF
tINSUPLL
Setup time with PLL clock at IOE input register
tINHPLL
Hold time with PLL clock at IOE input register
tOUTCOPLL
Clock-to-output delay with PLL clock at IOE output register
C1 = 35 pF