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Community Translated by MoTa_728816 Version: ** 質問： Cypress NAND デバイスの不良ブロックの検出およびマーキングはどのように行うのでしょうか？ 回答： NANDデバイスでは不良ブロック管理は重要な項目です。全ての C... Version: *B Question: What is meant by Industrial Operating Temperature for Cypress Flash memory products? Answer: Industrial operating temperature options are available on selected Cypress Flash mem... Version: ** Question: Datasheet mentions random access time of Cypress flash as 25 µs. Is this the actual time to read a page? Answer: Random access time of 25 µs mentioned in the datasheet c... Version: ** Question: How do I define the base address of a flash memory device? Answer: When flash memory devices are interfaced to processors, it is necessary to define the base address of the flash ch... Version: ** Question: NAND datasheets say that “Blocks zero and one are valid and will be valid for at least 1,000 program-erase cycles with ECC”. What does this mean? Answer: Cypress guarant... Version: ** Question: Why am I getting a „too many bad blocks error‟ when using a programmer to program a Cypress NAND flash device? Answer: The short answer to this question is that the bad block ... Version: *A Question: How do I select TTL Standby mode or CMOS Standby mode for Cypress NAND FLASH memory products? Answer: The S34ML08G2 NAND flash does not have any configurable Standby mode settin... Version: ** Question: Do Cypress NAND Flash devices have On Chip ECC? Answer: No, our current product line, namely the S34ML-2, S34MS-2, S34ML-1, and S34MS-1 families of SLC NAND Flash, does not have O... Version: ** Question: For NAND flash, must spare area always be the last 64 bytes or 128 bytes of each page? Answer: No. The spare area is meant to store ECC data and other metadata associated wit... Version: ** Question: How do I recognize and mark bad blocks in Cypress NAND devices? Answer: Bad Block Management is an important topic regarding NAND devices. All Cypress NAND datasheets contain... Version: ** Question: In the Cypress NAND flash device datasheet, one of the footnotes says: “These pins are assigned as VCC/VSS function, only to comply with ONFI specification. These pins should be c... Version: ** Question: How can I speed up JFFS2 mount times? Answer: The Linux JFFS2 flash file system was integrated into the Linux kernel in 2001 (see https://en.wikipedia.org/wiki/JFFS2). With... Version: ** Question: How many bad blocks are present during manufacturing? Answer: Cypress guarantees the total factory bad blocks and blocks that go bad during usage within the rated cycle limit wil... Version: ** Question: Is the BCH-24 ECC algorithm valid on Cypress S34ML02G2? Answer: The short answer is “yes”. See below for details and other considerations. ECC protection... Version: ** Question: How can I find the Moisture Sensitivity Level (MSL) rating, lead frame material, package weight, and Material Declaration Data Sheet (MDDS) for Cypress Flash NOR and NAND devices? ... Version: ** Question: How do I recover Cypress Flash devices when a sudden power down or flash reset happens during a program or erase operation? Answer: The flash data state at any given locati... Version: *A Question: If I expose my Cypress FLASH memory device to temperatures above the maximum limit, will the device still correctly perform? Answer: Unfortunately, there is no hard data th... Version: ** Question: Can I upgrade my products in the field to a new version of Cypress FFS? Answer: Yes. Please note that between Cypress FFS version 2.x.x and 4.x.x, there was a change to the... Version: ** Question: Are products from Cypress regulated by EU REACH? Answer: No. The EU REACH Directive 1999/45/EC regulates chemical substances, including those used to manufacture articles (produc... Version: ** Question: Does Cypress have a definition for halogen-free products? Answer: Halogens are a group of chemical elements which includes: Fluorine Chlorine Bromine Iodine...
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