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參數(shù)資料
| 型號： | LRS1338A |
| 廠商： | Sharp Corporation |
| 英文描述： | Stacked Chip 8M Flash Memory and 2M SRAM |
| 中文描述： | 堆疊芯片800萬快閃記憶體以及2M SRAM |
| 文件頁數(shù)： | 18/36頁 |
| 文件大?。?/td> | 218K |
| 代理商： | LRS1338A |
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LRS1338A
Stacked Chip (8M Flash & 2M SRAM)
18
Data Sheet
SR.7 = Write State Machine Status (WSMS)
1 = Ready
0 = Busy
SR.6 = Erase Suspend Status (ESS)
1 = Block Erase Suspended
0 = Block Erase in Progress/Completed
SR.5 = Erase(s)
1 = Error in Block Erasure
0 = Successful Block Erase
SR.4 = Word Write (WWS)
1 = Error in Word Write
0 = Successful Word Write
SR.3 = V
PP
Status (VPPS)
1 = V
PP
LOW Detect, Operation Abort
0 = V
PP
Okay
SR.2 = Word Write Suspend Status (WWSS)
1 = Word Write Suspended
0 = Word Write in Progress/Completed
SR.1 = Device Protect Status (DPS)
1 = WP and/or RP Lock Detected, Operation Abort
0 = Unlock
SR.0 = Reserved for future enhancements (R)
NOTES:
1. Check SR.7 to determine block erase or word write completion.
SR.6 - SR.0 are invalid while SR.7 = 0.
2. If both SR.5 and SR.4 are
‘
1
’
s after a block erase attempt, an
improper command sequence was entered.
3. SR.3 does not provide a continuous indication of V
PP
level. The
WSM interrogates and indicates the V
PP
level only after Block
Erase or Word Write command sequences. SR.3 is not guaran-
teed to report accurate feedback only when V
PP
≠
V
PPH
.
4. The WSM interrogates the WP and RP only after Block Erase or
Word Write command sequences. It informs the system, depending
on the attempted operation, if the WP is not V
IH
or RP is not V
HH
.
5. SR.0 is reserved for future use and should be masked out when
polling the status register.
Table 8. Write Protection Alternatives
OPERATION
V
PP
V
IL
RP
X
V
IL
V
HH
WP
X
X
X
V
IL
V
IH
EFFECT
Word Write or
Block Erase
All blocks locked
All blocks locked
All blocks unlocked
Two boot blocks locked
All blocks unlocked
> V
PPLK
V
IH
Table 9. Status Register Definition
WSMS
7
ESS
6
ES
5
WWS
4
VPPS
3
WWSS
2
DPS
1
R
0
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LRS1341 | Stacked Chip 16M Flash Memory and 2M SRAM |
| LRS1805A | Stacked Chip 64M (x16) Flash Memory + 16M (x16) Smartcombo RAM |
| LRS250 | LIGHT EMITTING DIODES |
| LRS250-DO | LIGHT EMITTING DIODES |
| LRZ180-CO | Array LED 2 mm LED, Diffused |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LRS1341 | 制造商:SHARP 制造商全稱:Sharp Electrionic Components 功能描述:Stacked Chip 16M Flash Memory and 2M SRAM |
| LRS1342 | 制造商:Sharp Microelectronics Corporation 功能描述:COMBO 1MX16 FLASH + 128KX16 SRAM 2.7V TO 3.6V 72FBGA - Trays |
| LRS1348 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Flash ROM |
| LRS1360 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Flash ROM |
| LRS1360C | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:MIXED MEMORY|SRAM+EEPROM|HYBRID|BGA|72PIN|PLASTIC |
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