LH28F800BJHE-PBTL90 Sharp Electronics, LH28F800BJHE-PBTL90 Datasheet - Page 12

• Manufacturer Part Number: LH28F800BJHE-PBTL90
• Manufacturer: Sharp Electronics

Specifications of LH28F800BJHE-PBTL90

• Cell Type: NOR
• Density: 8Mb
• Access Time (max): 90ns
• Interface Type: Parallel
• Boot Type: Bottom
• Address Bus: 20/19Bit
• Operating Supply Voltage (typ): 3.3V
• Operating Temp Range: -40C to 85C
• Package Type: TSOP
• Sync/async: Asynchronous
• Operating Temperature Classification: Industrial
• Operating Supply Voltage (min): 2.7V
• Operating Supply Voltage (max): 3.6V
• Word Size: 8/16Bit
• Number Of Words: 1M/512K
• Supply Current: 30mA
• Mounting: Surface Mount
• Pin Count: 48
• Lead Free Status / Rohs Status: Not Compliant

3.5 Read Identifier Codes
The
manufacturer code, device code, block lock configuration
codes for each block and the permanent lock configuration
code (see Figure 4). Using the manufacturer and device
codes, the system CPU can automatically match the device
with its proper algorithms. The block lock and permanent
lock configuration codes identify locked and unlocked
blocks and permanent lock-bit setting.
sharp
[A
7FFFF
77FFF
0FFFF
07FFF
06FFF
02FFF
01FFF
00FFF
0007F
00080
78003
78002
78001
78000
10000
08003
08002
08001
08000
07003
07002
07001
07000
03000
02003
02002
02001
02000
01003
01002
01001
01000
00004
00003
00002
00001
00000
18
Figure 4. Device Identifier Code Memory Map
-A
read
0
]
Parameter Block 5 Lock Configuration Code
Parameter Block 0 Lock Configuration Code
Main Block 14 Lock Configuration Code
Main Block 0 Lock Configuration Code
Boot Block 0 Lock Configuration Code
Boot Block 1 Lock Configuration Code
identifier
Permanent Lock Configuration Code
Reserved for Future Implementation
Reserved for Future Implementation
Reserved for Future Implementation
Reserved for Future Implementation
Reserved for Future Implementation
Reserved for Future Implementation
Reserved for Future Implementation
Reserved for Future Implementation
Reserved for Future Implementation
Reserved for Future Implementation
Reserved for Future Implementation
(Parameter Blocks 1 through 4)
(Main Blocks 1 through 13)
Manufacturer Code
Bottom Boot
Device Code
OTP Block
codes
Parameter Block 5
Parameter Block 0
operation
Main Block 14
Main Block 0
Boot Block 1
Boot Block 0
outputs
[A
20000
0E005
0E004
04005
04004
02005
00008
00007
00006
00005
00004
00003
00001
00000
FFFFF
F0006
F0005
F0004
F0003
F0000
EFFFF
1FFFF
01006
10005
10004
10003
10000
0FFFF
0E006
0E003
0E000
0DFFF
06000
05FFF
04006
04003
04000
03FFF
02006
02004
02003
02000
01FFF
00100
000FF
00002
18
-A
-1
]
the
LHF80J05
3.6 OTP(One Time Program) Block
The OTP block is a special block that can not be erased.
The block is divided into two parts. One is a factory
program area where a unique number can be written
according to customer requirements in SHARP factory.
This factory program area is "READ ONLY" (Already
locked). The other is a customer program area that can be
used by customers. This customer program area can be
locked. After locking, this customer program area is
protected permanently.
The OTP block is read in Configuration Read Mode by
writing Read Identifier Codes command(90H). To return
to Read Array Mode, write Read Array command(FFH).
The OTP block is programmed by writing OTP Program
command(C0H). First write OTP Program command and
then write data with address to the device (See Figure 5).
If OTP program is failed, SR.4(WORD/BYTE WRITE
AND SET LOCK-BIT STATUS) bit is set to "1". And if
this OTP block is locked, SR.1(DEVICE PROTECT
STATUS) bit is set to "1" too.
The OTP block is also locked by writing OTP Program
command(C0H). First write OTP Program command and
then write data "FFFDH" with address "80H" to the
device. Address "80H" of OTP block is OTP lock
information. Bit 0 of address "80H" means factory
program area lock status("1" is "NOT LOCKED", "0" is
"LOCKED"). Bit 1 of address "80H" means customer
program area lock status. The OTP lock information can
not be cleared, after once it is set.
[A
00FFF
00085
00084
00081
00080
18
Customer Program Area Lock(Bit 1)
-A
Factory Program Area Lock(Bit 0)
0
]
Figure 5. OTP Block Address Map
Customer Program Area
Factory Program Area
OTP Lock
[A
01FFF
0010A
00109
00102
00100
Rev. 1.27
18
-A
-1
]
9