NX25F011B-3S datasheet, PDF - EEWORLD Datasheet

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NX25F011B-3S: Description1M-BIT, 2M-BIT, AND 4M-BIT SERIAL FLASH MEMORIES WITH 4-PIN SPI INTERFACE; File Size528KB，37 Pages; ManufacturerETC

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1M-BIT, 2M-BIT, AND 4M-BIT SERIAL FLASH MEMORIES WITH 4-PIN SPI INTERFACE

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PRELIMINARY

DECEMBER 2001

NX25F011B, NX25F021B, NX25F041B

1M-BIT, 2M-BIT, AND 4M-BIT

SERIAL FLASH MEMORIES WITH 4-PIN SPI INTERFACE

This document contains PRELIMINARY INFORMATION. NexFlash reserves the right to make changes to its product at any time without notice in order to improve design and supply the best possible

product. We assume no responsibility for any errors which may appear in this publication.



NexFlash Technologies, Inc.

PRELIMINARY

NXSF016F-1201

12/12/01 ©

NX25F011B

NX25F021B

NX25F041B

Table of Contents

1M-BIT, 2M-BIT, AND 4M-BIT ......................................................................................................................................... 1

SERIAL FLASH MEMORIES WITH 4-PIN SPI INTERFACE .......................................................................................... 1

FEATURES ..................................................................................................................................................................... 4

DESCRIPTION ............................................................................................................................................................... 4

FUNCTIONAL OVERVIEW ............................................................................................................................................. 5

Pin Descriptions ....................................................................................................................................................... 5

Package ............................................................................................................................................................... 5

Serial Data Input (SI) ............................................................................................................................................ 6

Serial Data Output (SO) ....................................................................................................................................... 6

Serial Clock (SCK) ............................................................................................................................................... 6

Chip Select (CS) .................................................................................................................................................. 6

Write Protect (WP) ............................................................................................................................................... 6

Hold or Ready/Busy (HOLD or R/B) ...................................................................................................................... 6

Power Supply Pins (Vcc and Gnd) ........................................................................................................................ 6

Serial Flash Memory Array ....................................................................................................................................... 7

Serial SRAM ............................................................................................................................................................. 8

Using the SRAM Independent of Flash Memory ................................................................................................... 9

Write Protection ........................................................................................................................................................ 9

Configuration Register .............................................................................................................................................. 9

Write Protect Range and Direction, WR[3:0], WD ................................................................................................ 10

Read Clock Edge, RCE ...................................................................................................................................... 10

Table 2A. Write Protect Range Sector Selection (Hex) ........................................................................................ 11

Table 2B. Write Protect Range Sector Selection (Hex) ........................................................................................ 11

Table 2C. Write Protect Range Sector Selection (Hex) ........................................................................................ 11

HOLD-R/B, HR[1:0] ............................................................................................................................................ 11

Status Register Bit Descriptions ............................................................................................................................. 12

Compare Not Equal, CNE ................................................................................................................................... 12

Power Detect, PD ............................................................................................................................................... 12

Write Enable/Disable, WE................................................................................................................................... 12

Command Set ........................................................................................................................................................ 13

Command Set for the NX25F011B, NX25F021B and NX25F041B Serial Flash Memory ..................................... 15

SERIAL FLASH SECTOR COMMANDS ....................................................................................................................... 16

Read From Sector (52H) ......................................................................................................................................... 16

Read From Sector with Auto Increment (50H) ......................................................................................................... 16

Read From Sector Low Frequency (51H) and .......................................................................................................... 16

Read From Sector Low Frequency with Auto Increment (5BH) ................................................................................ 16

Write Enable (06H) .................................................................................................................................................. 16

Write Disable (04H) ................................................................................................................................................. 16

Write to Sector Through SRAM (F3H) ..................................................................................................................... 18

SERIAL SRAM COMMANDS ....................................................................................................................................... 19

Write to SRAM Command (72H) ............................................................................................................................. 19

Read from SRAM (71H) .......................................................................................................................................... 19

Transfer All of SRAM to Sector (F3H) ..................................................................................................................... 20

Transfer All of Sector to SRAM (53H) ..................................................................................................................... 20

Compare Sector to SRAM (8DH) ............................................................................................................................ 21

CONFIGURATION AND STATUS COMMANDS ............................................................................................................ 21

Read Configuration Register (8CH) ......................................................................................................................... 21

Write Non-Volatile Configuration

Register (8AH) ........................................................................................................................................................ 22

NexFlash Technologies, Inc.

PRELIMINARY

NXSF016F-1201

12/12/01 ©

NX25F011B

NX25F021B

NX25F041B

Table of Contents

(cont’d)

Read Status Register (84H) .................................................................................................................................... 22

Clear Compare Status (89H) ................................................................................................................................... 23

Set Power Detection Bit (03H) ................................................................................................................................ 23

Reset Power Detection Bit (09H) ............................................................................................................................. 23

Read Device Information Sector (15H) .................................................................................................................... 24

SPECIAL SECTOR COMMANDS ................................................................................................................................. 24

Erase Sector (F1H) ................................................................................................................................................. 24

Erase Block (F4H) .................................................................................................................................................. 25

Write-only to Sector (F2H) ...................................................................................................................................... 25

COMPATIBILITY COMMANDS FOR 25xxxA SERIES DEVICES ................................................................................. 26

Read from SRAM (81H) .......................................................................................................................................... 26

Read Configuration Register (8BH) ......................................................................................................................... 27

Read Status Register (83H) .................................................................................................................................... 27

Transfer Sector to SRAM Clocked (54H) ................................................................................................................. 28

Compare Sector to SRAM Clocked (86H) ............................................................................................................... 28

Sector Format ........................................................................................................................................................ 29

High Data Integrity Applications .............................................................................................................................. 29

Write/Verify Flow .................................................................................................................................................... 29

Grouping Static and Frequently

Updated Data .......................................................................................................................................................... 29

ABOSOLUTE MINIMUM RATINGS .............................................................................................................................. 30

OPERATING RANGES ................................................................................................................................................. 30

DC ELECTRICAL CHARACTERISTICS (Preliminary) ................................................................................................. 30

AC ELECTRICAL CHARACTERISTICS (Preliminary) ................................................................................................. 31

SERIAL OUTPUT TIMING ............................................................................................................................................ 32

SERIAL INPUT TIMING ................................................................................................................................................ 32

HOLD TIMING .............................................................................................................................................................. 32

PACKAGING INFORMATION ........................................................................................................................................ 33

200-mil Plastic SOIC Package Code: (S) ............................................................................................................ 33

PACKAGING INFORMATION ........................................................................................................................................ 34

330 mil Plastic SOIC Package Code: (J) ............................................................................................................ 34

PACKAGING INFORMATION ........................................................................................................................................ 35

Plastic TSOP - 28-pins Package Code: Type I (V) ............................................................................................... 35

PRELIMINARY DESIGNATION .................................................................................................................................... 36

IMPORTANT NOTICE ................................................................................................................................................... 36

ORDERING INFORMATION ......................................................................................................................................... 36

LIFE SUPPORT POLICY ............................................................................................................................................. 36

Trademarks: ................................................................................................................................................................. 36

NexFlash Technologies, Inc.

PRELIMINARY

NXSF016F-1201

12/12/01 ©

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