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參數(shù)資料
| 型號： | S29AL004D90TFI020 |
| 廠商： | SPANSION LLC |
| 元件分類： | DRAM |
| 英文描述： | 4 Megabit (512 Kx 8-Bit/256 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory |
| 中文描述： | 256K X 16 FLASH 3V PROM, 90 ns, PDSO48 |
| 封裝： | MO-142DD, LEAD FREE, TSOP-48 |
| 文件頁數(shù)： | 32/55頁 |
| 文件大小： | 1481K |
| 代理商： | S29AL004D90TFI020 |
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S29AL004D
S29AL004D_00_A1 February 18, 2005
A d v a n c e I n f o r m a t i o n
sector erase commands is always less than 50 μs. See also the
Sector Erase
Command Sequence on page 22
.
After the sector erase command sequence is written, the system should read the
status on DQ7 (Data# Polling) or DQ6 (Toggle Bit I) to ensure the device has ac-
cepted the command sequence, and then read DQ3. If DQ3 is
1
, the internally
controlled erase cycle has begun; all further commands (other than Erase Sus-
pend) are ignored until the erase operation is complete. If DQ3 is
0
, the device
START
No
Yes
Yes
DQ5 = 1
No
Yes
Toggle Bit
= Toggle
No
Program/Erase
Operation Not
Complete, Write
Reset Command
Program/Erase
Operation Complete
Read DQ7–DQ0
Toggle Bit
= Toggle
Read DQ7–DQ0
Twice
Read DQ7–DQ0
Notes:
1. Read toggle bit twice to determine whether or not it
is toggling. See text.
2. Recheck toggle bit because it may stop toggling as
DQ5 changes to
1
. See text.
Figure 6. Toggle Bit Algorithm
(Notes
1, 2)
(Note 1)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| S29AL004D90TFI022 | 4 Megabit (512 Kx 8-Bit/256 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory |
| S29AL004D90TFI023 | 4 Megabit (512 Kx 8-Bit/256 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory |
| S29AL004D70BAI010 | 4 Megabit (512 Kx 8-Bit/256 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory |
| S29AL004D70BAI012 | 4 Megabit (512 Kx 8-Bit/256 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory |
| S29AL004D70BAI013 | 4 Megabit (512 Kx 8-Bit/256 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| S29AL004D90TFI022 | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:4 Megabit (512 Kx 8-Bit/256 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory |
| S29AL004D90TFI023 | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:4 Megabit (512 Kx 8-Bit/256 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory |
| S29AL008D | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:8 Megabit (1 M x 8-Bit/512 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory |
| S29AL008D_06 | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:8 Megabit (1 M x 8-Bit/512 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory |
| S29AL008D55BAI010 | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:8 Megabit (1 M x 8-Bit/512 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory |
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