EP3C5M164C7N Altera, EP3C5M164C7N Datasheet - Page 80

IC CYCLONE III FPGA 5K 164 MBGA

EP3C5M164C7N

Manufacturer Part Number
EP3C5M164C7N
Description
IC CYCLONE III FPGA 5K 164 MBGA
Manufacturer
Altera
Series
Cyclone® IIIr

Specifications of EP3C5M164C7N

Number Of Logic Elements/cells
5136
Number Of Labs/clbs
321
Total Ram Bits
423936
Number Of I /o
106
Voltage - Supply
1.15 V ~ 1.25 V
Mounting Type
Surface Mount
Operating Temperature
0°C ~ 85°C
Package / Case
164-MBGA
Family Name
Cyclone III
Number Of Logic Blocks/elements
5136
# I/os (max)
106
Frequency (max)
437.5MHz
Process Technology
65nm
Operating Supply Voltage (typ)
1.2V
Logic Cells
5136
Ram Bits
423936
Operating Supply Voltage (min)
1.15V
Operating Supply Voltage (max)
1.25V
Operating Temp Range
0C to 85C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
164
Package Type
MBGA
For Use With
544-2601 - KIT DEV CYCLONE III LS EP3CLS200544-2411 - KIT DEV NIOS II CYCLONE III ED.
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Number Of Gates
-
Lead Free Status / Rohs Status
Compliant
Other names
544-2559

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0
5–16
Post-Scale Counter Cascading
Programmable Duty Cycle
Cyclone III Device Handbook, Volume 1
1
Cyclone III device family PLLs support post-scale counter cascading to create
counters larger than 512. This is implemented by feeding the output of one C counter
into the input of the next C counter, as shown in
Figure 5–12. Counter Cascading
When cascading counters to implement a larger division of the high-frequency VCO
clock, the cascaded counters behave as one counter with the product of the individual
counter settings.
For example, if C0 = 4 and C1 = 2, the cascaded value is C0 × C1 = 8.
Post-scale counter cascading is automatically set by the Quartus II software in the
configuration file. Post-scale counter cascading cannot be performed using the PLL
reconfiguration.
The programmable duty cycle allows PLLs to generate clock outputs with a variable
duty cycle. This feature is supported on the PLL post-scale counters. You can achieve
the duty cycle setting by a low and high time count setting for the post-scale counters.
The Quartus II software uses the frequency input and the required multiply or divide
rate to determine the duty cycle choices. The post-scale counter value determines the
precision of the duty cycle. The precision is defined by 50% divided by the post-scale
counter value. For example, if the C0 counter is 10, steps of 5% are possible for duty
cycle choices between 5 to 90%.
Combining the programmable duty cycle with programmable phase shift allows the
generation of precise non-overlapping clocks.
VCO Output
VCO Output
VCO Output
VCO Output
VCO Output
VCO Output
Chapter 5: Clock Networks and PLLs in the Cyclone III Device Family
Figure
C0
C1
C2
C3
C4
5–12.
© December 2009 Altera Corporation
Hardware Features

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