at40k20lv-3rqi ATMEL Corporation, at40k20lv-3rqi Datasheet - Page 4
at40k20lv-3rqi
Manufacturer Part Number
at40k20lv-3rqi
Description
5k - 50k Gates Coprocessor Fpga With Freeram?
Manufacturer
ATMEL Corporation
Datasheet
1.AT40K20LV-3RQI.pdf
(67 pages)
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The Symmetrical
Array
4
AT40K/AT40KLV Series FPGA
At the heart of the Atmel architecture is a symmetrical array of identical cells,
see Figure 1. The array is continuous from one edge to the other, except for bus repeat-
ers spaced every four cells, see Figure 2 on page 5. At the intersection of each repeater
row and column there is a 32 x 4 RAM block accessible by adjacent buses. The RAM
can be configured as either a single-ported or dual-ported RAM
nous or asynchronous operation.
Note:
Figure 1. Symmetrical Array Surrounded by I/O (AT40K20)
1. The right-most column can only be used as single-port RAM.
= I/O Pad
= AT40K Cell
= Repeater Row
= Repeater Column
(1)
= FreeRAM
, with either synchro-
0896C–FPGA–04/02
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