EP3C5F256C8N Altera, EP3C5F256C8N Datasheet - Page 65

• Manufacturer Part Number: EP3C5F256C8N
• Description: IC CYCLONE III FPGA 5K 256-FBGA
• Manufacturer: Altera
• Series: Cyclone® IIIr

Specifications of EP3C5F256C8N

• Number Of Logic Elements/cells: 5136
• Number Of Labs/clbs: 321
• Total Ram Bits: 423936
• Number Of I /o: 182
• Voltage - Supply: 1.15 V ~ 1.25 V
• Mounting Type: Surface Mount
• Operating Temperature: 0°C ~ 85°C
• Package / Case: 256-FBGA
• No. Of Logic Blocks: 321
• Family Type: Cyclone III
• No. Of I/o's: 182
• I/o Supply Voltage: 3.3V
• Operating Frequency Max: 402MHz
• Operating Temperature Range: 0°C To +85°C
• Rohs Compliant: Yes
• 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: -
• Other names: 544-2423; EP3C5F256C8N

Clock Networks
GCLK Network
© December 2009
CIII51006-3.2
f
Altera Corporation
This chapter describes the hierarchical clock networks and phase-locked loops (PLLs)
with advanced features in the Cyclone
LS devices).
This chapter includes the following sections:
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The Cyclone III device family provides up to 16 dedicated clock pins (CLK[15..0])
that can drive the global clocks (GCLKs). The Cyclone III device family supports four
dedicated clock pins on each side of the device except EP3C5 and EP3C10 devices.
EP3C5 and EP3C10 devices only support four dedicated clock pins on the left and
right sides of the device.
For more information about the number of GCLK networks in each device density,
refer to the
GCLKs drive throughout the entire device, feeding all device quadrants. All resources
in the device (I/O elements, logic array blocks (LABs), dedicated multiplier blocks,
and M9K memory blocks) can use GCLKs as clock sources. Use these clock network
resources for control signals, such as clock enables and clears fed by an external pin.
Internal logic can also drive GCLKs for internally generated GCLKs and
asynchronous clears, clock enables, or other control signals with high fan-out.
“Clock Networks” on page 5–1
“PLLs in the Cyclone III Device Family” on page 5–9
“Cyclone III Device Family PLL Hardware Overview” on page 5–10
“Clock Feedback Modes” on page 5–12
“Hardware Features” on page 5–15
“Programmable Bandwidth” on page 5–22
“Phase Shift Implementation” on page 5–22
“PLL Cascading” on page 5–24
“PLL Reconfiguration” on page 5–24
“Spread-Spectrum Clocking” on page 5–32
“PLL Specifications” on page 5–32
Cyclone III Device Family Overview
5. Clock Networks and PLLs in the
®
III device family (Cyclone III and Cyclone III
chapter.
Cyclone III Device Family
Cyclone III Device Handbook, Volume 1