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M2S56D20AKT - 256M Double Data Rate Synchronous DRAM

Download the M2S56D20AKT datasheet PDF (M2S included). The manufacturer datasheet provides complete specifications, pinout details, electrical characteristics, and typical applications for 256m double data rate synchronous dram.

Description

M2S56D20AKT is a 4-bank x 16,777,216-word x 4-bit, M2S56D30AKT is a 4-bank x 8,388,608-word x 8-bit, M2S56D40AKT is a 4-bank x 4,194,304-word x 16-bit, double data rate synchronous DRAM, with SSTL_2 interface.

All control and address signals are referenced to the rising edge of CLK.

Features

  • - Vdd=Vddq=2.5V+0.2V - Double data rate architecture; two data transfers per clock cycle - Bidirectional, data strobe (DQS) is transmitted/received with data - Differential clock inputs (CLK and /CLK) - DLL aligns DQ and DQS transitions with CLK transitions edges of DQS - Commands entered on each positive CLK edge; - data and data mask referenced to both edges of DQS - 4 bank operation controlled by BA0, BA1 (Bank Address) - /CAS latency- 2.0/2.5 (programmable) - Burst length- 2/4/8 (programmabl.

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Note: The manufacturer provides a single datasheet file (M2S-56D3.pdf) that lists specifications for multiple related part numbers.

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Full PDF Text Transcription

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DDR SDRAM (Rev.1.0) Jul. '01 Preliminary M2S56D20/ 30/ 40AKT MITSUBISHI LSIs 256M Double Data Rate Synchronous DRAM PRELIMINARY Some of contents are subject to change without notice. DESCRIPTION M2S56D20AKT is a 4-bank x 16,777,216-word x 4-bit, M2S56D30AKT is a 4-bank x 8,388,608-word x 8-bit, M2S56D40AKT is a 4-bank x 4,194,304-word x 16-bit, double data rate synchronous DRAM, with SSTL_2 interface. All control and address signals are referenced to the rising edge of CLK. Input data is registered on both edges of data strobe, and output data and data strobe are referenced on both edges of CLK. The M2S56D20/30/40AKT achieves very high speed data rate up to 133MHz, and are suitable for main memory in computer systems. FEATURES - Vdd=Vddq=2.5V+0.
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