M29F800DB55N6 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

M29F800DB55N6

8 Mbit (1Mb x8 or 512Kb x16, Boot Block) 5V Supply Flash Memory

STMicroelectronics 

M29F800DT

Figure 17. Programmer Equipment Chip Unprotect flowchart

START

PROTECT ALL BLOCKS

n=0

CURRENT BLOCK = 0

Block protection

A6, A12, A15 = VIH(1)

E, G, A9 = VID

Wait 4µs

W = VIL

Wait 10ms

W = VIH

E, G = VIH

ADDRESS = CURRENT BLOCK ADDRESS

A0 = VIL, A1, A6 = VIH

E = VIL

Wait 4µs

G = VIL

Wait 60ns

Read DATA

INCREMENT

CURRENT BLOCK

NO ++n

= 1000

YES

A9 = VIH

E, G = VIH

FAIL

NO DATA YES

=

00h

LAST NO

BLOCK

YES

A9 = VIH

E, G = VIH

PASS

AI03470

49/53

Share Link: