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EP2C20F256C8N Datasheet, PDF (19/470 Pages) Altera Corporation – Cyclone II Device Handbook, Volume 1 | |||
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Introduction
â 133-MHz PCI-X 1.0 specification compatibility
â High-speed external memory support, including DDR, DDR2,
and SDR SDRAM, and QDRII SRAM supported by drop in
Altera IP MegaCore functions for ease of use
â Three dedicated registers per I/O element (IOE): one input
register, one output register, and one output-enable register
â Programmable bus-hold feature
â Programmable output drive strength feature
â Programmable delays from the pin to the IOE or logic array
â I/O bank grouping for unique VCCIO and/or VREF bank
settings
â MultiVolt⢠I/O standard support for 1.5-, 1.8-, 2.5-, and
3.3-interfaces
â Hot-socketing operation support
â Tri-state with weak pull-up on I/O pins before and during
configuration
â Programmable open-drain outputs
â Series on-chip termination support
â Flexible clock management circuitry
â Hierarchical clock network for up to 402.5-MHz performance
â Up to four PLLs per device provide clock multiplication and
division, phase shifting, programmable duty cycle, and external
clock outputs, allowing system-level clock management and
skew control
â Up to 16 global clock lines in the global clock network that drive
throughout the entire device
â Device configuration
â Fast serial configuration allows configuration times less than
100 ms
â Decompression feature allows for smaller programming file
storage and faster configuration times
â Supports multiple configuration modes: active serial, passive
serial, and JTAG-based configuration
â Supports configuration through low-cost serial configuration
devices
â Device configuration supports multiple voltages (either 3.3, 2.5,
or 1.8 V)
â Intellectual property
â Altera megafunction and Altera MegaCore function support,
and Altera Megafunctions Partners Program (AMPPSM)
megafunction support, for a wide range of embedded
processors, on-chip and off-chip interfaces, peripheral
functions, DSP functions, and communications functions and
Altera Corporation
February 2008
1â3
Cyclone II Device Handbook, Volume 1
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