GAL22LV10C-10LJ LATTICE [Lattice Semiconductor], GAL22LV10C-10LJ Datasheet - Page 11
GAL22LV10C-10LJ
Manufacturer Part Number
GAL22LV10C-10LJ
Description
Manufacturer
LATTICE [Lattice Semiconductor]
Datasheet
1.GAL22LV10C-10LJ.pdf
(18 pages)
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Note: fmax with no feedback may be less than 1/(twh + twl). This
is to allow for a clock duty cycle of other than 50%.
Note: fmax with external feedback is calculated from measured
tsu and tco.
fmax DESCRIPTIONS
f
max with External Feedback 1/(
LOGIC
ARRAY
LOGIC
ARRAY
t
f
su +
max with No Feedback
t
su
t
h
REGISTER
REGISTER
CLK
CLK
t
t
co
su+
t
co)
11
Note: tcf is a calculated value, derived by subtracting tsu from
the period of fmax w/internal feedback (tcf = 1/fmax - tsu). The
value of tcf is used primarily when calculating the delay from
clocking a register to a combinatorial output (through registered
feedback), as shown above. For example, the timing from clock
to a combinatorial output is equal to tcf + tpd.
Specifications GAL22LV10
f
max with Internal Feedback 1/(
LOGIC
ARRAY
t
cf
t
pd
REGISTER
CLK
t
su+
t
cf)