M29W320DB90N6_03 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

M29W320DB90N6_03

32 Mbit (4Mb x8 or 2Mb x16, Boot Block) 3V Supply Flash Memory

STMicroelectronics 

Figure 18. Programmer Equipment Block Protect Flowchart

M29W320DT, M29W320DB

START

ADDRESS = BLOCK ADDRESS

W = VIH

n=0

G, A9 = VID,

E = VIL

Wait 4µs

W = VIL

Wait 100µs

W = VIH

E, G = VIH,

A0, A6 = VIL,

A1 = VIH

E = VIL

Wait 4µs

G = VIL

Wait 60ns

Read DATA

DATA NO

=

01h

YES

A9 = VIH

E, G = VIH

PASS

++n NO

= 25

YES

A9 = VIH

E, G = VIH

FAIL

AI03469

39/44

Share Link: