M58BW016BT100T3(2003) View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

M58BW016BT100T3
(Rev.:2003)

16 Mbit (512Kb x32, Boot Block, Burst) 3V Supply Flash Memories

STMicroelectronics 

M58BW016BT, M58BW016BB, M58BW016DT, M58BW016DB

Figure 26. Unlock Device and Program a Tuning Protected Block Flowchart

Reset

Device locked

by tuning code

TUNING PROTECTION

UNLOCK SEQUENCE

Add: don't care Issue Read command

Data: 0xFFh

5th: Write Cycle

Add: don't care

Data: 0x78h

1st: Write Cycle

Add: don't care

Data: 0x40h

6th: Write Cycle

Add: 0x00000h

Data: First 32 bit

2nd: Write Cycle

(First part

of the tuning code)

Add: don't care

Data: 0xFFh

Issue

Read

command

b7 = 1

YES

Add: don't care

Data: 0x78h

3rd: Write Cycle

Add: location to prog. 7th: Write Cycle

Data: data to prog.

b7 = 1

YES

Status Register

check

Add: 0x00001h 4th: Write Cycle

Data: Second 32 bit (Second part

of the tuning code)

Location

programmed

b7 = 1

YES

Read Status

Register

NO

DEVICE LOCKED

b0 = 1

YES

DEVICE UNLOCKED

AI04502

54/63

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