LH28F160BJHE-BTL70 Sharp Electronics, LH28F160BJHE-BTL70 Datasheet - Page 18

• Manufacturer Part Number: LH28F160BJHE-BTL70
• Manufacturer: Sharp Electronics

Specifications of LH28F160BJHE-BTL70

• Cell Type: NOR
• Density: 16Mb
• Access Time (max): 70ns
• Interface Type: Parallel
• Boot Type: Bottom
• Address Bus: 21/20Bit
• Operating Supply Voltage (typ): 3.3V
• Operating Temp Range: -40C to 85C
• Package Type: TSOP
• Sync/async: Asynchronous
• Operating Temperature Classification: Industrial
• Operating Supply Voltage (min): 2.7V
• Operating Supply Voltage (max): 3.6V
• Word Size: 8/16Bit
• Number Of Words: 2M/1M
• Supply Current: 30mA
• Mounting: Surface Mount
• Pin Count: 48
• Lead Free Status / Rohs Status: Not Compliant

4.12 Block Locking by the WP#
This Boot Block Flash memory architecture features two
programmed or erased as necessary.
The lockable blocks are locked when WP#=V,;
program or erase operation to a locked block will result in
hardware-lockable
the system can be kept secure while other blocks are
Block Erase
Zlear Block
Word/Byte
Permanent
SHARI=
Lock-Bits
Operation
Set Block
Full Chip
Lock-Bit
Lock-Bit
Write
Erase
Set
or
boot blocks so that the kernel code for
X
X
X
X
0
1
Table 5. Write Protection Alternatives
X
X
X
X
X
X
any
LHF16JO7
X
X
X
X
X
X
Clear Block Lock-Bits Enabled.
Clear Block Lock-Bits Disabled.
Set Permanent Lock-Bit Disabled.
Set Permanent Lock-Bit Disabled.
Set Permanent Lock-Bit Enabled.
All Unlocked Blocks are Erased.
Clear Block Lock-Bits Disabled.
For the bottom configuration, the bottom tow boot blocks
boot block can be programmed or erased normally (Unless
an error, which will be reflected in the status register. For
top configuration, the top two boot blocks are lockable.
are lockable. If WP# is V,, and block lock-bit is not set,
V,, is below V,,,,).
other blocks are not affected.
WP# is valid only two boot blocks,
Rev. 1.2
16