LH28F800BG Sharp Electrionic Components, LH28F800BG Datasheet - Page 11

• Manufacturer Part Number: LH28F800BG
• Description: 8 M-bit (512 kB x 16) SmartVoltage Flash Memory
• Manufacturer: Sharp Electrionic Components

NOTES :
1. Bus operations are defined in Table 2.
2. X = Any valid address within the device.
3. SRD = Data read from status register. See Table 6 for a
4. Following the Read Identifier Codes command, read
Read Array/Reset
Read Identifier Codes
Read Status Register
Clear Status Register
Block Erase
Word Write
Block Erase and
Word Write Suspend
Block Erase and
Word Write Resume
IA = Identifier code address : see Fig. 2.
BA = Address within the block being erased.
WA = Address of memory location to be written.
WD = Data to be written at location WA. Data is latched
ID = Data read from identifier codes.
operations access manufacture and device codes. See
Section 4.2 for read identifier code data.
COMMAND
on the rising edge of WE# or CE# (whichever
goes high first).
description of the status register bits.
BUS CYCLES
REQ
≥ 2
1
2
1
2
2
1
1
Table 3 Command Definitions
’
D.
NOTE
5, 6
4
5
5
5
Oper
- 11 -
Write
Write
Write
Write
Write
Write
Write
Write
(NOTE 1)
FIRST BUS CYCLE
5. If the block is boot block, RP# must be at V
6. Either 40H or 10H is recognized by the WSM as the
7. Commands other than those shown above are reserved
Addr
block erase or word write operations. Attempts to issue a
block erase or word write to a boot block while RP# is
V
word write setup.
by SHARP for future device implementations and should
not be used.
IH
WA
BA
(NOTE 2)
X
X
X
X
X
X
.
(NOTE 7)
Data
40H or 10H
FFH
B0H
D0H
90H
70H
50H
20H
(NOTE 3)
LH28F800BG-L (FOR SOP)
Oper
Read
Read
Write
Write
SECOND BUS CYCLE
(NOTE 1)
Addr
WA
BA
IA
(NOTE 2)
X
HH
Data
to enable
SRD
D0H
WD
ID
(NOTE 3)