CY7C132CV18 datasheet(1/8 Pages) CYPRESS

Part #	CY7C132CV18

Description	RAM9 QDR-I/DDR-I/QDR-II/DDR- II Errata

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Manufacturer	CYPRESS [Cypress Semiconductor]

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Errata Revision: *C

May 02, 2007

RAM9 QDR-I/DDR-I/QDR-II/DDR- II Errata

CY7C129*DV18/CY7C130*DV25

CY7C130*BV18/CY7C130*BV25/CY7C132*BV25

CY7C131*BV18 / CY7C132*BV18/CY7C139*BV18

CY7C191*BV18/CY7C141*AV18 / CY7C142*AV18/

CY7C151*V18 /CY7C152*V18

Cypress Semiconductor Corporation

•

198 Champion Court

•

San Jose

, CA 95134-1709

•

408-943-2600

Document #: 001-06217 Rev. *C

Revised:- May 02, 2007

This document describes the DOFF issue for QDRII/DDRII and the Output Buffer and JTAG issues for

QDRI/DDRI/QDRII/DDRII. Details include trigger conditions, possible workarounds and silicon revision applicability.

This document should be used to compare to the respective datasheet for the devices to fully describe the device

functionality.

Please contact your local Cypress Sales Representative for availability of the fixed devices and any other questions.

Devices Affected

Table 1.

List of Affected devices

Product Status

All of the above densities and revisions are available in sample as well as production quantities.

QDR/DDR DOFF Pin, Output Buffer and JTAG Issues Errata Summary

The following table defines the issues and the fix status for the different devices which are affected.

Density & Revision

Part Numbers

Architecture

9Mb - Ram9(90 nm)

CY7C130*DV25

QDRI/DDRI

9Mb - Ram9(90 nm)

CY7C129*DV18

QDRII

18Mb - Ram9(90nm)

CY7C130*BV18

CY7C130*BV25

CY7C132*BV25

QDRI/DDRI

18Mb - Ram9(90nm)

CY7C131*BV18

CY7C132*BV18

CY7C139*BV18

CY7C191*BV18

QDRII/DDRII

36Mb - Ram9(90nm)

CY7C141*AV18

CY7C142*AV18

QDRII/DDRII

72Mb -Ram9(90nm)

CY7C151*V18

CY7C152*V18

QDRII/DDRII

Item

Issue

Device

Fix Status

1.

DOFF pin is used for enabling/dis-

abling the DLL circuitry within the

SRAM. To enable the DLL circuitry,

DOFF pin must be externally tied

HIGH. The QDR-II/DDR-II devices

have an internal pull down resistor of

~5K

. The value of the external pull-

up resistor should be 500

or less in

order to ensure DLL is enabled.

9Mb - “D” Rev - Ram9

18Mb - “B” Rev - Ram9

36Mb - “A” Rev - Ram9

72Mb - Ram9

QDR-II/DDR-II Devices

The fix involved removing the in-

ternal pull-down resistor on the

DOFF pin. The fix has been im-

plemented on the new revision

and is now available.

Ω

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