at49bv160ct ATMEL Corporation, at49bv160ct Datasheet - Page 7

• Manufacturer Part Number: at49bv160ct
• Description: 16-megabit 1m X 16 3-volt Only Flash Memory
• Manufacturer: ATMEL Corporation

Table 4-2.
Figure 4-1.
Note:
3367F–FLASH–4/05
V
V
V
V
V
V
V
V
V
PP
CC
CC
CC
CC
CC
CC
CC
IL
/5V
/5V
/5V
/5V
/5V
/5V
/5V
1. The notation [X, Y, Z] denotes the locking state of a sector. The current locking state of a sector is defined by the state of WP
and the two bits of the sector-lock status D[1:0].
Hardlock and Softlock Protection Configurations in Conjunction with WP
Sector Locking State Diagram
WP
0
0
0
1
1
1
1
x
WP = V
WP = V
Hard-
lock
0
1
0
0
1
1
0
x
IL
IH
= 0
= 1
UNLOCKED
[000]
[110]
[100]
Soft-
lock
1
1
1
1
0
0
0
x
60h/
D0h
60h/
D0h
60h/D0h
Allowed?
Erase/
60h/01h
60h/
2Fh
60h/
01h
Prog
Yes
Yes
Yes
No
No
No
No
No
60h/
01h
60h/
2Fh
LOCKED
60h/D0h = Unlock Command
60h/01h = Softlock Command
60h/2Fh = Hardlock Command
[001]
[011]
[111]
[101]
60h/
2Fh
Comments
No sector is locked
Sector is Softlocked. The Unlock command can
unlock the sector.
Hardlock protection mode is enabled. The sector
cannot be unlocked.
No sector is locked.
Sector is Softlocked. The Unlock command can
unlock the sector.
Hardlock protection mode is overridden and the
sector is not locked.
Hardlock protection mode is overridden and the
sector can be unlocked via the Unlock command.
Erase and Program Operations cannot be
performed.
Hardlocked is disabled by
Hardlocked
Power-Up/Reset
Power-Up/Reset
Default
WP = V
Default
IH
AT49BV160C(T)
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