EM42AM1684RTA-75F datasheet, PDF

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EM42AM1684RTA-75F: Description256Mb (4M】4Bank】16) Double DATA RATE SDRAM; File Size327KB，19 Pages; ManufacturerEOREX; Websitehttp://www.eorex.com

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EM42AM1684RTA-75F Overview

256Mb (4M】4Bank】16) Double DATA RATE SDRAM

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eorex

Features

• Internal Double-Date-Rate architecture with 2

Accesses per clock cycle.

• Single 2.5V

±0.2V

Power Supply

• 2.5V SSTL-2 compatible I/O

• Burst Length (B/L) of 2, 4, 8

• 2,2.5,3 Clock read latency

• Bi-directional,intermittent data strobe(DQS)

• All inputs except data and DM are sampled

at the positive edge of the system clock.

• Data Mask (DM) for write data

• Sequential & Interleaved Burst type available

• Auto Precharge option for each burst accesses

• DQS edge-aligned with data for Read cycles

• DQS center-aligned with data for Write cycles

• DLL aligns DQ & DQS transitions with CLK

transition

• Auto Refresh and Self Refresh

• 8,192 Refresh Cycles / 64ms

EM42AM1684RTA

256Mb (4M

4Bank

16)

Double DATA RATE SDRAM

Description

The EM42AM1684RTA is high speed Synchronous

graphic RAM fabricated with ultra high performance

CMOS process containing 268,435,456 bits which

organized as 4Meg words x 4 banks by 16 bits.

The 256Mb DDR SDRAM uses a double data rate

architecture to accomplish high-speed operation.

The data path internally prefetches multiple bits and

It transfers the datafor both rising and falling edges

of the system clock.It means the doubled data

bandwidth can be achieved at the I/O pins.

Available packages:TSOPII 66P 400mil.

Ordering Information

Part No

EM42AM1684RTA-75F

EM42AM1684RTA-6F

EM42AM1684RTA-5F

Organization

16M X 16

Max. Freq

133MHz @CL25

166MHz @CL25

200MHz @CL3

Package

66pin TSOP(ll)

Grade

Commercial

Free

* EOREX reserves the right to change products or specification without notice.

Jul. 2006

1/19

www.eorex.com

EM42AM1684RTA-75F Related Products

	EM42AM1684RTA-75F	EM42AM1684RTA-6F	EM42AM1684RTA	EM42AM1684RTA-5F
Description	256Mb (4M】4Bank】16) Double DATA RATE SDRAM	256Mb (4M】4Bank】16) Double DATA RATE SDRAM	256Mb (4M】4Bank】16) Double DATA RATE SDRAM	256Mb (4M】4Bank】16) Double DATA RATE SDRAM

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