LH28F400SUE-NC80 Sharp Electronics, LH28F400SUE-NC80 Datasheet - Page 18

• 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

LH28F400SU-NC
18
READ COMPATIBLE
READ COMPATIBLE
STATUS REGISTER
STATUS REGISTER
WRITE CONFIRM
DATA/ADDRESS
OPERATION
COMPLETE
WRITE 47H
CSR.4, 5 =
CSR.7 =
CSR.7 =
START
0
1
1
0
0
1
(NOTE)
Figure 14. Reset Write Protect
OPERATION
NOTE:
If CSR.4, 5 is set, as it is command sequence error,
should be cleared before further attempts are initiated.
Reset Write Protect command enables Write/Erase
operation to all blocks.
Write FFH after the last operation to reset device to
Read Array Mode.
See Command Bus Cycle notes for description of codes.
Read
Write
Write
Read
Read
BUS
Write Protect
COMMAND
Confirm
Reset
Reset
4M (512K × 8, 256K × 16) Flash Memory
Check CSR.7
1 = WSM Ready
0 = WSM Busy
D = 47H
A = X
D = D0H
A = 0FFH
(A
Others = X)
Check CSR.7
1 = WSM Ready
0 = WSM Busy
Check CSR.4, 5
1 = Unsuccesful
0 = Successful
9
- A
8
= 0, A
COMMENTS
7
- A
0
= 1,
28F400SUT-NC60-12