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參數(shù)資料
| 型號(hào)： | LH28F320SKTD |
| 廠商： | Sharp Corporation |
| 英文描述： | 32M Flash Memory(32M閃速存儲(chǔ)器) |
| 中文描述： | 32M的閃存（32M的閃速存儲(chǔ)器） |
| 文件頁(yè)數(shù)： | 2/4頁(yè) |
| 文件大小： | 33K |
| 代理商： | LH28F320SKTD |
LH28F320SKTD
Migration from LH28F032SUTD . . .
2
Flash Application Note
SOFTWARE COMPATIBILITY
Table 2 shows the differences between the manu-
facture and device IDs. If any conversion takes place,
the device ID has to be changed.
LH28F032SU and LH28F320SK have two com-
mand sets: Compatible Command set and Enhanced
Command set.
The Compatible Command performs the basic oper-
ations such as Array Read, Word/Byte Write, Block
Erase and Suspend etc. While the Enhanced Command
performs the enhanced features offered by the SK
device. Table 3 and Table 4 show the compatible com-
mand set and enhanced command set, respectively.
Furthermore, the SK supports CFI (Common Flash
Interface). The CFI is used to standardize the software
compatibility and contains the block size, density, com-
mand set information, etc.
For detailed information on software compatibility
and CFI, please refer to the data sheets for each part.
Table 4 shows the differences of the Enhanced
Command Functions between the two devices.
Because of those differences, the status register bits
checking differs as well. The LH28F032SU has three
registers, Compatible Status Register (CSR), Global
Status Register (GSR), Block Status Register (BSR).
However LH28F320SK has only two: the Status Regis-
ter (SR) and Extended Status Register (XSR). Table 5
shows the status register bit cross references.
Table 1. Comparison of LH28F032SUTD and LH28F320SKTD
PARAMETER
LH28F032SUTD
LH28F320SKTD
Supply Voltage V
CC
/V
PP
Configuration
Package
Block Size
Block Locking Feature
Buffer Size
CFI
3.3 V/5 V, 5 V/5 V
x8/x16
56 TSOP
32 × 64KB × 2 banks
Any block
256 bytes × 2
No
3.3 V/3.3 V, 3.3 V/5 V, 5 V/5 V
x8/x16
56 TSOP
32 × 64KB × 2 banks
Any block
32 bytes × 2
Yes
Table 2. Comparison of IDs
DEVICE
LH28F032SUTD
LH28F320SKTD
MANUFACTURE ID
B0
B0
DEVICE ID
88
D0
Table 3. Compatible Command Set
COMPATIBLE
COMMAND CODE
LH28F032SU LH28F320SK
Read Array
Intelligent Identifier
Read Compatible Status
Register
Clear Status Register
Word/Byte Write
Alternate Word/Byte Write
Erase Suspend/Resume
Block Erase/Confirm
FFH
90H
FFH
90H
70H
70H
50H
40H
10H
50H
40H
10H
B0H/D0H
20H/D0H
B0H/D0H
20H/D0H
Table 4. Enhanced Command Set
ENHANCED
COMMAND FUNCTION
Lock Block/Confirm
Set Block Lock-Bit/Confirm
Clear Block Lock-Bits/
Confirm
Single Load to Page Buffer
Sequential Load to Page
Buffer
Page Buffer Write to Flash
Byte Write Suspend/
Resume
Erase All Unlocked
Blocks/Confirm
Full Chip Erase/Confirm
Device Configuration
STS Configuration
Read Query
Read Extended Status
Register
Read Page Buffer
Page Buffer Swap
Two-Byte Program
Upload Status Bits
Upload Device Information
Sleep
Abort
LH28F032SU
LH28F320SK
77H/D0H
60H/01H
60H/D0H
74H
E0H
E8H
0CH
D0H
B0H/D0H
A7H/D0H
30H/D0H
96H
B8H
98H
71H
75H
72H
FBH
97H
99H
F0H
80H
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