LH28F400SUHT-LC15 Sharp Electronics, LH28F400SUHT-LC15 Datasheet - Page 13
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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
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
START
BLOCK
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-LC
28F400SUH-LC15-7
13