M28W320C-GBT View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

M28W320C-GBT

32 Mbit (2Mb x16, Boot Block) Low Voltage Flash Memory

STMicroelectronics 

Prev 31 32 33 34 35 36 37 38 39 40 Next

M28W320CT, M28W320CB

Figure 16. Command Interface and Program Erase Controller Flowchart (a)

WAIT FOR

COMMAND

WRITE (1)

NO

90h

YES

READ

SIGNATURE

NO

98h

YES

CFI

QUERY

NO

70h

YES

READ

STATUS

NO

50h

YES

CLEAR

STATUS

NO

60h

YES

READ

STATUS

BP/BU/BL

C0h NO

SET-UP

D

YES

PRP

SET-UP

40h or NO

10h

YES

READ

ARRAY

YES

READY

(2)

PRP

PROGRAM

SET-UP

NO

30h

B

NO

YES

C

DPG

SET-UP

NO

20h

B

NO

01h

YES

BLOCK

PROTECT

NO

D0h

YES

BLOCK

UNPROTECT

NO

2Fh

YES

BLOCK

LOCK

BP/BU/BL

COMMAND

ERROR

YES

C

ERASE

SET-UP

NO

FFh

YES

NO

D0h

YES

A

ERASE

COMMAND

ERROR

AI03543

Note: 1. If no command is written, the Command Interface remains in its previous valid state. Upon power-up, on exit from power-down or

if VDD falls below VLKO, the Command Interface defaults to Read Array mode.

2. P/E.C. status (Ready or Busy) is read on Status Register bit 7.

34/42

Share Link: