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參數(shù)資料
| 型號： | S29AL016D90TFI013 |
| 廠商： | SPANSION LLC |
| 元件分類： | DRAM |
| 英文描述： | 16 MEGABIT CMOS 3.0 VOLT ONLY BOOT SECTOR FLASH MEMORY |
| 中文描述： | 1M X 16 FLASH 3V PROM, 90 ns, PDSO48 |
| 封裝： | LEAD FREE, MO-142DDD, TSOP-48 |
| 文件頁數(shù)： | 20/58頁 |
| 文件大?。?/td> | 1037K |
| 代理商： | S29AL016D90TFI013 |
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S29AL016D
S29AL016D_00_A2 December 17, 2004
P r e l i m i n a r y
Hardware Data Protection
The command sequence requirement of unlock cycles for programming or erasing
provides data protection against inadvertent writes (refer to
Table 9
for command
definitions). In addition, the following hardware data protection measures pre-
vent accidental erasure or programming, which might otherwise be caused by
spurious system level signals during V
CC
power-up and power-down transitions,
or from system noise.
Low V
CC
W rite I nhibit
When V
CC
is less than V
LKO
, the device does not accept any write cycles. This pro-
tects data during V
CC
power-up and power-down. The command register and all
internal program/erase circuits are disabled, and the device resets. Subsequent
writes are ignored until V
CC
is greater than V
LKO
. The system must provide the
proper signals to the control pins to prevent unintentional writes when V
CC
is
greater than V
LKO
.
W rite Pulse “ Glitch” Protection
Noise pulses of less than 5 ns (typical) on OE#, CE# or WE# do not initiate a write
cycle.
Table 8. Primary Vendor-Specific Extended Query
Addresses
( W ord Mode)
Addresses
( Byte Mode)
Data
Description
40h
41h
42h
80h
82h
84h
0050h
0052h
0049h
Query-unique ASCII string “PRI”
43h
86h
0031h
Major version number, ASCII
44h
88h
0030h
Minor version number, ASCII
45h
8Ah
0000h
Address Sensitive Unlock
0 = Required, 1 = Not Required
46h
8Ch
0002h
Erase Suspend
0 = Not Supported, 1 = To Read Only, 2 = To Read & Write
47h
8Eh
0001h
Sector Protect
0 = Not Supported, X = Number of sectors in per group
48h
90h
0001h
Sector Temporary Unprotect
00 = Not Supported, 01 = Supported
49h
92h
0004h
Sector Protect/Unprotect scheme
01 = 29F040 mode, 02 = 29F016 mode,
03 = 29F400 mode, 04 = 29LV800A mode
4Ah
94h
0000h
Simultaneous Operation
00 = Not Supported, 01 = Supported
4Bh
96h
0000h
Burst Mode Type
00 = Not Supported, 01 = Supported
4Ch
98h
0000h
Page Mode Type
00 = Not Supported, 01 = 4 Word Page, 02 = 8 Word Page
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相關(guān)代理商/技術(shù)參數(shù) |
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