LH28F640BFN-PTTLZ1 Sharp Electronics, LH28F640BFN-PTTLZ1 Datasheet - Page 13

• Manufacturer Part Number: LH28F640BFN-PTTLZ1
• Manufacturer: Sharp Electronics

Specifications of LH28F640BFN-PTTLZ1

• Cell Type: NOR
• Density: 64Mb
• Access Time (max): 80ns
• Interface Type: Parallel
• Boot Type: Top
• Address Bus: 22b
• Operating Supply Voltage (typ): 3.3V
• Operating Temp Range: 0C to 70C
• Package Type: SOP
• Program/erase Volt (typ): 2.7 to 3.6V
• Sync/async: Asynchronous
• Operating Temperature Classification: Commercial
• Operating Supply Voltage (min): 2.7V
• Operating Supply Voltage (max): 3.6V
• Word Size: 16b
• Number Of Words: 4M
• Supply Current: 25mA
• Mounting: Surface Mount
• Pin Count: 44
• Lead Free Status / Rohs Status: Not Compliant

sharp
NOTES:
1. DQ
2. Erase and program are general terms, respectively, to express: block erase, full chip erase and
3. At power-up or device reset, all blocks default to locked state and are not locked-down, that is,
4. OTP (One Time Program) block has the lock function which is different from those described
NOTES:
1. "Set Lock" means Set Block Lock Bit command, "Clear Lock" means Clear Block Lock Bit
2. When the Set Block Lock-Down Bit command is written to the unlocked block (DQ
3. "No Change" means that the state remains unchanged after the command written.
State
[00]
[01]
[10]
[11]
(page buffer) program operations.
[01] regardless of the states before power-off or reset operation.
above.
command and "Set Lock-down" means Set Block Lock-Down Bit command.
corresponding block is locked-down and automatically locked at the same time.
DQ
[00]
[01]
[10]
[11]
State
Current State
0
1
=1: a block is locked; DQ
=1: a block is locked-down; DQ
(3)
DQ
0
0
1
1
Table 6. Block Locking State Transitions upon Command Write
1
DQ
Table 5. Functions of Block Lock
DQ
0
0
1
1
1
0
1
0
1
(1)
0
Current State
DQ
0
1
0
1
Set Lock
No Change
No Change
0
(1)
0
Result after Lock Command Written (Next State)
[01]
[11]
=0: a block is unlocked.
Unlocked
Locked
Unlocked
Locked
(1)
1
=0: a block is not locked-down.
LHF64FD1
State Name
No Change
Clear Lock
(4)
No Change
and Block Lock-Down
[00]
[10]
(1)
(3)
Erase/Program Allowed
Set Lock-down
No Change
[11]
[11]
[11]
Yes
Yes
No
No
(2)
(2)
(1)
0
(2)
=0), the
Rev. 2.41
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