AT40K40AL Ver la hoja de datos (PDF) - Atmel Corporation

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AT40K40AL

5K – 50K Gates Coprocessor FPGA with FreeRAM™

Atmel Corporation 

2. The Symmetrical Array

At the heart of the Atmel architecture is a symmetrical array of identical cells, seeFigure 2-1. The array is

continuous from one edge to the other, except for bus repeaters spaced every four cells, see Figure 2-2. 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*, with either synchronous or asynchronous

operation.

*The right-most column can only be used as single-port RAM.

Figure 2-1. Symmetrical Array Surrounded by I/O (AT40K20AL)(1)

= I/O Pad

= AT40K Cell

= Repeater Row

= Repeater Column

= FreeRAM

Note: 1. AT40KAL has registered I/Os. Group enable on every sector for tri-states on obufe’s.

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AT40KAL Series FPGA [Datasheet]

Atmel-2818G-FPGA-AT40KAL-Series-Datasheet_092013

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