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EP1C6F256C7N(Intel Corporation) La description
Additional information about the EP1C6F256C7N: Cyclone devices contain a two-dimensional row- and column-based
architecture to implement custom logic. Column and row interconnects
of varying speeds provide signal interconnects between LABs and
embedded memory blocks.
The logic array consists of LABs, with 10 LEs in each LAB. An LE is a
small unit of logic providing efficient implementation of user logic
functions. LABs are grouped into rows and columns across the device.
Cyclone devices range between 2,910 to 20,060 LEs.
M4K RAM blocks are true dual-port memory blocks with 4K bits of
memory plus parity (4,608 bits). These blocks provide dedicated true
dual-port, simple dual-port, or single-port memory up to 36-bits wide at
up to 250 MHz. These blocks are grouped into columns across the device
in between certain LABs. Cyclone devices offer between 60 to 288 Kbits of
Each Cyclone device I/O pin is fed by an I/O element (IOE) located at the
ends of LAB rows and columns around the periphery of the device. I/O
pins support various single-ended and differential I/O standards, such as
the 66- and 33-MHz, 64- and 32-bit PCI standard and the LVDS I/O
standard at up to 640 Mbps. Each IOE contains a bidirectional I/O buffer
and three registers for registering input, output, and output-enable
signals. Dual-purpose DQS, DQ, and DM pins along with delay chains
(used to phase-align DDR signals) provide interface support with
external memory devices such as DDR SDRAM, and FCRAM devices at
up to 133 MHz (266 Mbps).
Cyclone devices provide a global clock network and up to two PLLs. The
global clock network consists of eight global clock lines that drive
throughout the entire device. The global clock network can provide
clocks for all resources within the device, such as IOEs, LEs, and memory
blocks. The global clock lines can also be used for control signals. Cyclone
PLLs provide general-purpose clocking with clock multiplication and
phase shifting as well as external outputs for high-speed differential I/O