EDS1232AHTA datasheet(1/50 Pages) ELPIDA

Part #	EDS1232AHTA

Description	128M bits SDRAM

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Manufacturer	ELPIDA [Elpida Memory]

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

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Document No. E1163E30 (Ver. 3.0)

Date Published January 2008 (K) Japan

Printed in Japan

URL: http://www.elpida.com

©Elpida Memory, Inc. 2007-2008

DATA SHEET

128M bits SDRAM

EDS1232AHTA (4M words

× 32 bits)

Specifications

• Density: 128M bits

• Organization

⎯ 1M words × 32 bits × 4 banks

• Package: 86-pin plastic TSOP (II)

⎯ Lead-free (RoHS compliant)

• Power supply: VDD, VDDQ = 3.3V ± 0.3V

• Clock frequency: 166MHz/133MHz (max.)

• Four internal banks for concurrent operation

• Interface: LVTTL

• Burst lengths (BL): 1, 2, 4, 8, full page

• Burst type (BT):

⎯ Sequential (1, 2, 4, 8, full page)

⎯ Interleave (1, 2, 4, 8)

• /CAS Latency (CL): 2, 3

• Precharge: auto precharge option for each burst

access

• Refresh: auto-refresh, self-refresh

• Refresh cycles: 4096 cycles/64ms

⎯ Average refresh period: 15.6μs

• Operating ambient temperature range

⎯ TA = 0°C to +70°C

Features

• ×32 organization

• Single pulsed /RAS

• Burst read/write operation and burst read/single write

operation capability

• Byte control by DQM

Pin Configurations

/xxx indicates active low signal.

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VSS

DQ15

VSSQ

DQ14

DQ13

VDDQ

DQ12

DQ11

VSSQ

DQ10

DQ9

VDDQ

DQ8

NC

VSS

DQM1

NC

CLK

CKE

A9

A8

A7

A6

A5

A4

A3

DQM3

VSS

NC

DQ31

VDDQ

DQ30

DQ29

VSSQ

DQ28

DQ27

VDDQ

DQ26

DQ25

VSSQ

DQ24

VSS

VDD

DQ0

VDDQ

DQ1

DQ2

VSSQ

DQ3

DQ4

VDDQ

DQ5

DQ6

VSSQ

DQ7

NC

VDD

DQM0

/WE

/CAS

/RAS

/CS

A11

BA0

BA1

A10(AP)

A0

A1

A2

DQM2

VDD

NC

DQ16

VSSQ

DQ17

DQ18

VDDQ

DQ19

DQ20

VSSQ

DQ21

DQ22

VDDQ

DQ23

VDD

86-pin Plastic TSOP(II)

Address inputs

Bank select

Data input/output

Chip select

Row address strobe

Column address strobe

Write enable

DQ mask enable

Clock enable

Clock input

Supply voltage

Ground

Supply voltage

for DQ

Ground for DQ

No connection

A0 to A11

BA0, BA1

DQ0 to DQ31

/CS

/RAS

/CAS

/WE

DQM0 to DQM3

CKE

CLK

VDD

VSS

VDDQ

VSSQ

NC

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