Uniform Sector

Standard and Dual Serial Flash

GD25WD40C/20C

2

CONTENTS

1.

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

2.

GENERAL DESCRIPTION ..........................................................................................................................5

3.

MEMORY ORGANIZATION.........................................................................................................................8

4.

DEVICE OPERATION ................................................................................................................................10

5.

DATA PROTECTION ................................................................................................................................. 11

6.

STATUS REGISTER ..................................................................................................................................12

7.

COMMANDS DESCRIPTION ....................................................................................................................13

7.1.

WRITE ENABLE (WREN) (06H) .............................................................................................................15

7.2.

WRITE DISABLE (WRDI) (04H)..............................................................................................................15

7.3.

READ STATUS REGISTER (RDSR) (05H)................................................................................................16

7.4.

WRITE STATUS REGISTER (WRSR) (01H) .............................................................................................16

7.5.

READ DATA BYTES (READ) (03H) .........................................................................................................17

7.6.

READ DATA BYTES AT HIGHER SPEED (FAST READ) (0BH) .....................................................................17

7.7.

DUAL OUTPUT FAST READ (3BH)...........................................................................................................18

7.8.

PAGE PROGRAM (PP) (02H)..................................................................................................................18

7.9.

SECTOR ERASE (SE) (20H) ..................................................................................................................19

7.10.

32KB BLOCK ERASE (BE) (52H) ...........................................................................................................20

7.11.

64KB BLOCK ERASE (BE) (D8H) ..........................................................................................................20

7.12.

CHIP ERASE (CE) (60/C7H)..................................................................................................................21

7.13.

DEEP POWER-DOWN (DP) (B9H) ..........................................................................................................22

7.14.

RELEASE FROM DEEP POWER-DOWN / READ DEVICE ID (ABH) ..............................................................22

7.15.

READ MANUFACTURE ID/ DEVICE ID (REMS) (90H) ..............................................................................23

7.16.

READ IDENTIFICATION (RDID) (9FH) .....................................................................................................25

8.

ELECTRICAL CHARACTERISTICS .........................................................................................................26

8.1.

POWER-ON TIMING ..........................................................................................................................26

8.2.

INITIAL DELIVERY STATE .................................................................................................................26

8.3.

ABSOLUTE MAXIMUM RATINGS......................................................................................................26

8.4.

CAPACITANCE MEASUREMENT CONDITIONS ..............................................................................27

8.5.

DC CHARACTERISTICS....................................................................................................................28

8.6.

AC CHARACTERISTICS ....................................................................................................................31

9.

ORDERING INFORMATION......................................................................................................................37

9.1.

VALID PART NUMBERS ...........................................................................................................................38

10.

PACKAGE INFORMATION....................................................................................................................40

10.1.

PACKAGE SOP8 150MIL ......................................................................................................................40

10.2.

PACKAGE SOP8 208MIL ......................................................................................................................41

10.3.

PACKAGE TSSOP8 173MIL ..................................................................................................................42

10.4.

PACKAGE DIP8 300MIL ........................................................................................................................43