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GAL22V10D-15QPN Datasheet, PDF (11/23 Pages) Lattice Semiconductor – All Devices Discontinued | |||
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SpSepceifcicifaictaiotinosnsGGALA2L22V21V01D0
AC Switching Characteristics
Over Recommended Operating Conditions
COM / IND COM / IND
IND
COM / IND
PARAM.
TEST
COND.1
DESCRIPTION
tpd
A Input or I/O to Comb. Output
-10
-15
-20
-25
UNITS
MIN. MAX. MIN. MAX. MIN. MAX. MIN. MAX.
1 10 3 15 3 20 3 25 ns
tco
A Clock to Output Delay
tcf2
â Clock to Feedback Delay
tsu
â Setup Time, Input or Fdbk before Clkâ
S th
â Hold Time, Input or Fdbk after Clkâ
A Maximum Clock Frequency with
E External Feedback, 1/(tsu + tco)
1 7 2 8 2 10 2 15 ns
â 2.5 â 2.5 â 8 â 13 ns
6â
0â
83.3 â
10 â 12 â 15 â
0â 0 â 0 â
55.5 â 41.6 â 33.3 â
ns
ns
MHz
D fmax3
A
Maximum Clock Frequency with
Internal Feedback, 1/(tsu + tcf)
110 â 80 â 45.4 â 35.7 â MHz
IC E A Maximum Clock Frequency with
No Feedback
125 â 83.3 â 50 â 38.5 â MHz
V U twh
â Clock Pulse Duration, High
twl
â Clock Pulse Duration, Low
E IN ten
B Input or I/O to Output Enabled
tdis
C Input or I/O to Output Disabled
D tar
A Input or I/O to Asynch. Reset of Reg.
T tarw â Asynch. Reset Pulse Duration
tarr
â Asynch. Reset to Clkâ Recovery Time
L N tspr
â Synch. Preset to Clkâ Recovery Time
4 â 6 â 10 â 13 â ns
4 â 6 â 10 â 13 â ns
1 10 3 15 3 20 3 25 ns
1 9 3 15 3 20 3 25 ns
1 13 3 20 3 25 3 25 ns
8 â 15 â 20 â 25 â ns
8 â 10 â 20 â 25 â ns
8 â 10 â 14 â 15 â ns
1) Refer to Switching Test Conditions section.
L O 2) Calculated from fmax with internal feedback. Refer to fmax Description section.
3) Refer to fmax Description section.
A C Capacitance (TA = 25°C, f = 1.0 MHz)
SYMBOL
PARAMETER
IS CI
Input Capacitance
CI/O
I/O Capacitance
D *Characterized but not 100% tested.
MAXIMUM*
8
8
UNITS
pF
pF
TEST CONDITIONS
VCC = 5.0V, VI = 2.0V
VCC = 5.0V, VI/O = 2.0V
9
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