GAL18V10-10LJ View Datasheet(PDF) - Lattice Semiconductor
Part Name
Description
Manufacturer
GAL18V10-10LJ Datasheet PDF : 16 Pages
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Specifications GAL18V10
AC Switching Characteristics
Over Recommended Operating Conditions
PARAMETER TEST
COND.1
tpd
A
tco
A
tcf2
—
tsu
—
th
—
A
fmax3
A
A
twh
—
twl
—
ten
B
tdis
C
tar
A
tarw
—
tarr
—
tspr
—
DESCRIPTION
Input or I/O to Combinatorial Output
Clock to Output Delay
Clock to Feedback Delay
Setup Time, Input or Feedback before Clock↑
Hold Time, Input or Feedback after Clock↑
Maximum Clock Frequency with
External Feedback, 1/(tsu +tco)
Maximum Clock Frequency with
Internal Feedback, 1/(tsu + tcf)
Maximum Clock Frequency with
No Feedback
Clock Pulse Duration, High
Clock Pulse Duration, Low
Input or I/O to Output Enabled
Input or I/O to Output Disabled
Input or I/O to Asynchronous Reset of Register
Asynchronous Reset Pulse Duration
Asynchronous Reset to Clock Recovery Time
Synchronous Preset to Clock Recovery Time
COM
-15
MIN. MAX.
— 15
COM
-20
UNITS
MIN. MAX.
— 20
ns
— 10 — 12
ns
—
7
— 10
ns
10 — 12 —
ns
0
—
0
—
ns
50 — 41.6 — MHz
58.8 — 45.4 — MHz
62.5 — 62.5 — MHz
8
—
8
—
ns
8
—
8
—
ns
— 15 — 20
ns
— 15 — 20
ns
— 20 — 20
ns
10 — 15 —
ns
15 — 15 —
ns
10 — 12 —
ns
1) Refer to Switching Test Conditions section.
2) Calculated from fmax with internal feedback. Refer to fmax Description section.
3) Refer to fmax Description section.
Capacitance (TA = 25°C, f = 1.0 MHz)
SYMBOL
PARAMETER
CI
Input Capacitance
CI/O
I/O Capacitance
*Characterized but not 100% tested.
MAXIMUM*
8
10
UNITS
pF
pF
TEST CONDITIONS
VCC = 5.0V, VI = 2.0V
VCC = 5.0V, VI/O = 2.0V
9
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