LH28F400SUHT-LC15 Sharp Electronics, LH28F400SUHT-LC15 Datasheet - Page 18
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LH28F400SUHT-LC15
Manufacturer Part Number
LH28F400SUHT-LC15
Description
Manufacturer
Sharp Electronics
Datasheet
1.LH28F400SUHT-LC15.pdf
(37 pages)
Specifications of LH28F400SUHT-LC15
Cell Type
NOR
Density
4Mb
Access Time (max)
150ns
Interface Type
Parallel
Address Bus
19/18Bit
Operating Supply Voltage (typ)
3.3V
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)
3V
Operating Supply Voltage (max)
3.6V
Word Size
8/16Bit
Number Of Words
512K/256K
Supply Current
35mA
Mounting
Surface Mount
Pin Count
56
Lead Free Status / Rohs Status
Not Compliant
LH28F400SU-LC
18
READ COMPATIBLE
READ COMPATIBLE
STATUS REGISTER
STATUS REGISTER
WRITE CONFIRM
DATA/ADDRESS
OPERATION
WRITE 57H
COMPLETE
CSR.4, 5 =
CSR.7 =
CSR.7 =
START
0
1
1
0
0
1
(NOTE)
Figure 14. Set Write Protect
OPERATION
NOTE:
If CSR.4, 5 is set, as it is command sequence error,
should be cleared before further attempts are initiated.
Upon device power-up or toggle RP, Set Write
Protect command must be written to reflect the actual
lock-bit status.
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
Set Confirm
COMMAND
Set
4M (512K × 8, 256K × 16) Flash Memory
Check CSR.7
1 = WSM Ready
0 = WSM Busy
D = 57H
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,
28F400SUH-LC15-12