ep20k1000e Altera Corporation, ep20k1000e Datasheet - Page 53

• Manufacturer Part Number: ep20k1000e
• Description: Programmable Logic Device Family
• Manufacturer: Altera Corporation

Altera Corporation
f
f
f
f
f
VCO
CLOCK0
CLOCK1
CLOCK0_EXT
CLOCK1_EXT
Table 18. APEX 20KE Clock Input & Output Parameters
Symbol
(4)
Voltage controlled oscillator
operating range
Clock0 PLL output frequency
for internal use
Clock1 PLL output frequency
for internal use
Output clock frequency for
external clock0 output
Output clock frequency for
external clock1 output
Parameter
SSTL-2 Class
SSTL-2 Class
SSTL-3 Class
SSTL-3 Class
SSTL-2 Class
SSTL-2 Class
SSTL-3 Class
SSTL-3 Class
I/O Standard
3.3-V LVTTL
2.5-V LVTTL
1.8-V LVTTL
3.3-V LVTTL
2.5-V LVTTL
1.8-V LVTTL
LVDS
LVDS
GTL+
GTL+
II
II
II
II
APEX 20K Programmable Logic Device Family Data Sheet
I
I
I
I
-1X Speed Grade
(Part 1 of 2)
Min
200
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
20
20
20
20
20
20
20
20
20
20
Max
500
335
335
245
234
223
205
158
142
166
149
420
245
234
223
205
158
142
166
149
420
Note (1)
-2X Speed Grade
Min
200
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
20
20
20
20
20
20
20
20
20
20
Max
500
200
200
226
221
216
193
157
142
162
146
350
226
221
216
193
157
142
162
146
350
Units
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
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