ATC25 데이터 시트보기 (PDF) - Atmel Corporation

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ATC25

Cell-based ASIC

Atmel Corporation 

Compiled Two-port RAM

Megacells

The Atmel Asynchronous Two-port RAM can be configured in multi-bank form, with a

maximum of four banks, and can be used to achieve FIFO functions.

The range of permitted Asynchronous Two-port RAM Megacell configurations is as

follows:

Number of bits

128, .. 36K

Number of words(1) 64, .. 2K

Word Size(1)

2, .. 36 bits

Note: 1. Must be the same for both ports.

The following table shows the range of performances for particular Asynchronous Two-

port RAM configurations under typical conditions.

Configuration

Density (Kbits/mm2)

Frequency (MHz)

Dynamic Power

(mW/MHz)

256 x 8 (2K bits)

20

385

0.06

512 x 16 (8K bits)

24

357

0.10

1K x 32 (32K bits)

27

294

0.18

Compiled Synchronous

ROM Megacells

The Atmel Synchronous ROM is diffusion programmable and is applicable in low power

solutions. It can be configured in multi-bank form, with a maximum of four banks.

The range of permitted Synchronous ROM Megacell configurations is as follows:

Number of bits

256, .. 512K

Number of words

64, .. 8K

Word Size

4, .. 72 bits

The following table shows the range of performances for particular Synchronous ROM

configurations under typical conditions.

Configuration

Density (Kbits/mm2)

Frequency (MHz)

Dynamic Power

(mW/MHz)

2K x 8 (16K bits)

400

198

0.13

4K x 16 (64K bits)

568

187

0.26

8K x 32 (256K bits)

669

140

0.54

10 ATC25 Summary

1306DS–CBIC–09/02

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