M2S56D40AKT datasheet(6/41 Pages) ELPIDA

Part #	M2S56D40AKT

Description	256M Double Data Rate Synchronous DRAM

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Manufacturer	ELPIDA [Elpida Memory]

Direct Link	http://www.elpida.com/en

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6

DDR SDRAM

E0338M10 (Ver.1.0)

(Previous Rev.1.54E)

Jan. '03 CP(K)

M2S56D20/ 30/ 40ATP

256M Double Data Rate Synchronous DRAM

M2S56D20/ 30/ 40AKT

TYPE DESIGNATION CODE

This rule is applied to only Synchronous DRAM family.

Mitsubishi Main Designation

Speed Grade

60: 166MHz@CL=2.5,133MHz@CL=2.0

75: 133MHz@CL=2.5,100MHz@CL=2.0

Package Type TP: TSOP(II), KT: sTSOP(Small TSOP)

Process Generation

Function Reserved for Future Use

Organization 2 n

2: x4, 3: x8, 4: x16

DDR Synchronous DRAM

Density 56: 256M bits

Interface V:LVTTL, S:SSTL_3, _2

Memory Style (DRAM)

M 2 S 56 D 3 0 A KT – 60 UL

BLOCK DIAGRAM

/CS /RAS /CAS /WE

UDM,

LDM

Memory

Array

Bank #0

DQ0 - 15

I/O Buffer

Memory

Array

Bank #1

Memory

Array

Bank #2

Memory

Array

Bank #3

Mode Register

Control Circuitry

Address Buffer

A0-12

BA0,1

Clock Buffer

CLK

CKE

Control Signal Buffer

QS Buffer

UDQS,LDQS

DLL

75A: 133MHz@CL=2.5,133MHz@CL=2.0

/CLK

(DDR333B)

(DDR266B)

(DDR266A)

Power Grade UL/U: Ultra Low power L: Low power, Blank: standard

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M2S56D40AKT Datasheet(PDF) 6 Page - Elpida Memory

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