LH28F400SUE-NC80 Sharp Electronics, LH28F400SUE-NC80 Datasheet - Page 13

• Manufacturer Part Number: LH28F400SUE-NC80
• Manufacturer: Sharp Electronics

Specifications of LH28F400SUE-NC80

• Cell Type: NOR
• Density: 4Mb
• Access Time (max): 80ns
• Interface Type: Parallel
• Boot Type: Not Required
• Address Bus: 19/18Bit
• Operating Supply Voltage (typ): 5V
• Operating Temp Range: 0C to 70C
• Package Type: TSOP-I
• Program/erase Volt (typ): 4.5 to 5.5V
• Sync/async: Asynchronous
• Operating Temperature Classification: Commercial
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• Word Size: 8/16Bit
• Number Of Words: 512K/256K
• Supply Current: 60mA
• Mounting: Surface Mount
• Pin Count: 48
• Lead Free Status / Rohs Status: Not Compliant

4M (512K × 8, 256K × 16) Flash Memory
OPERATION COMPLETE
READ COMPATIBLE
READ COMPATIBLE
READ COMPATIBLE
STATUS REGISTER
STATUS REGISTER
STATUS REGISTER
BLOCK ADDRESS
WRITE D0H AND
WRITE 77H
RESET WP
CSR.4, 5 =
ANOTHER
CSR.7 =
CSR.7 =
CSR.7 =
SET WP
BLOCK?
START
LOCK
NO
1
1
1
0
YES
0
0
1
0
(NOTE)
Figure 9. Block Locking Scheme
OPERATION
NOTE:
See CSR Full Status Check for Data-Write operation.
If CSR.4, 5 is set, as it is command sequence error,
should be cleared before further attempts are initiated.
Write FFH after the last operation to reset device to read
array mode.
See Command Bus Definitions for description of codes.
Read
Write
Read
Write
Write
Read
Write
BUS
Write Protect
Write Protect
COMMAND
Lock Block
Confirm
Reset
Set
Q = CSRD
Toggle CE or OE
to update CSRD.
1 = WSM Ready
0 = WSM Busy
After Write D = 47H A = X,
Write D = D0H A = 0FFH
Q = CSRD
Toggle CE or OE
to update CSRD.
1 = WSM Ready
0 = WSM Busy
D = 77H
A = X
D = D0H
A = BA
Q = CSRD
Toggle CE or OE
to update CSRD.
1 = WSM Ready
0 = WSM Busy
After Write D = 57H A = X,
Write D = D0H A = 0FFH
COMMENTS
LH28F400SU-NC
28F400SUT-NC60-7
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