NM1282KSLAXAL datasheet(52/120 Pages) NANYA

52 / 120 page

Version 1.3

Nanya Technology Corp.

06/2018

2Gb SLC NAND + 2Gb LPDDR2

NM1282KSLAXAL

NTC Proprietary

Level: Property

(15)Failure phenomena for Program and Erase Operations

The device may fail during a Program or Erase operation.

The following possible failure modes should be considered when implementing a highly reliable system.

Failure Mode

Detection and Countermeasure Sequence

Block

Erase Failure

Read Status after Erase → Block Replacement

Page

Programming Failure

Read Status after Program → Block Replacement

Read

Bit Error

ECC Correction / Block Refresh

NOTE 1

ECC: Error Correction Code. 8 bit correction per 512 Bytes is necessary.

Block Replacement

Program

When an error happens in Block A, try to reprogram the data into another Block (Block B) by loading from an

external buffer. Then, prevent further system accesses to Block A ( by creating a bad block table or by using

another appropriate scheme).

Erase

When an error occurs during an Erase operation, prevent future accesses to this bad block (again by creating a

table within the system or by using another appropriate scheme).

(16)The number of valid blocks is on the basis of single plane operations, and this may be decreased with two

plane operations.

NM1282KSLAXAL Fiches technique(PDF) 52 Page - Nanya Technology Corporation.