M29W641D View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

M29W641D

64 Mbit (4Mb x16, Uniform Block) 3V Supply Flash Memory

STMicroelectronics 

Figure 5. Data Polling Flowchart

START

READ DQ5 & DQ7

at VALID ADDRESS

DQ7

=

YES

DATA

NO

NO DQ5

=1

YES

READ DQ7

at VALID ADDRESS

DQ= 7 YES

DATA

NO

FAIL

PASS

AI90194

M29W641DH, M29W641DL, M29W641DU

Figure 6. Data Toggle Flowchart

START

READ DQ6

READ

DQ5 & DQ6

DQ= 6

NO

TOGGLE

YES

NO DQ5

=1

YES

READ DQ6

TWICE

DQ= 6

NO

TOGGLE

YES

FAIL

PASS

AI90195B

17/42

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