參數(shù)資料
型號(hào)： S29C51001B
廠商： Electronic Theatre Controls, Inc.
英文描述： 1 MEGABIT (131,072 x 8 BIT) 5 VOLT CMOS FLASH MEMORY
中文描述： 1兆位（131072 × 8位）5伏的CMOS閃存
文件頁數(shù)： 11/16頁
文件大?。?/td> 7725K
代理商： S29C51001B
11
Boot Block Protection
The
S
29C51001T/
S
29C51001B features
hardware Boot Block Protection. The boot block
sector protection is enabled when high voltage
(12.5V) is applied to OE and A9 pins with CE pin
LOW and WE pin lOW. The sector protection is
desabled when high voltage is applied to OE, CE
and A9 pins with WE pin LOW. Other pins can be
HIGH or LOW. This is shown in table 1.
Autoselect
The
S
29C51001T/
S
29C51001B features an
Autoselect mode to identify the Boot Block
(protected/unprotected), the Device (Top/Bottom),
and the manufacturer ID.
To get to the Autoselect mode, a high voltage
(V
H
) must be applied to the A
9
pin. Once the A
9
signal is returned to LOW or HIGH, the device will
return to the previous mode.
Boot Block Protection Status
In Autoselect mode, performing a read at
address 3CXX2H or address 0CXX2H will indicate
if the Top Boot Block sector or the Bottom Boot
Block sector is locked out. If the data is 01H, the
Top/Bottom Boot Block is protected. If the data is
00H, the Top/Bottom Boot Block is unprotected.
(see Table 3.)
Device ID
In Autoselect mode, performing a read at
address XXXXH will determine whether the device
is a Top Boot Block device or a Bottom Boot Block
device. If the data is 01H, the device is a Top Boot
Block. If the data is A1H, the device is a Bottom
Boot Block device (see Table 3).
In addition, the device ID can also be read via the
command register when the device is erased or
programmed in a system without applying high
voltage to the A
9
pin. When A
0
is HIGH, the device
ID is presented at the outputs.
Manufacturer ID
In Autoselect mode, performing a read at
address. XXXX0H will determine the manufacturer
ID. 40H is the manufacturer code for SyncMOS
Flash.
In addition the manufacturer ID can also be read
via the command register when the device is
erased or programmed in a system without
applying high voltage to the A
9
pin. when A
0
is
LOW, the manufacturer ID is presented at the
outputs.
Hardware Data Protection
V
CC
Sense Protection:the program operation is
inhibited when VCC is less than 2.5V.
Noise Protection:a CE or WE pulse of less than
5ns will not initiate a program cycle.
Program Inhibit Protection:holding any one of
OE LOW, CE HIGH or WE HIGH inhibits a program
cycle.
Table 3. Autoselect Decoding
NOTE:
1.
X = Don’t Care, V
IH
= HIGH, V
IL
= LOW.
Decoding Mode
Boot Block
Address
Data I/O
0
–I/O
7
A
0
A
1
A
2
–A
13
A
14
–A
16
Boot Block Protection
Top
V
IL
V
IH
X
V
IH
01H: protected
Bottom
V
IL
V
IH
X
V
IL
00H: unprotected
Device ID
Top
V
IH
V
IL
X
X
01H
Bottom
A1H
Manufacture ID
V
IL
V
IL
X
X
40H
SyncMOS Technologies Inc.
S
29C5100
1
T/
S
29C5100
1
B
1
MEGABIT (
131,072
x 8
BIT)
5 VOLT CMOS FLASH MEMORY
S
29C51001T/
S
29C51001B
V1.0
February
2003
相關(guān)PDF資料
PDF描述
S29C51001T 1 MEGABIT (131,072 x 8 BIT) 5 VOLT CMOS FLASH MEMORY
S29C51001 1 MEGABIT (131,072 x 8 BIT) 5 VOLT CMOS FLASH MEMORY
S29C51004T90J 4 MEGABIT (524,288 x 8 BIT) 5 VOLT CMOS FLASH MEMORY
S29C51004B 4 MEGABIT (524,288 x 8 BIT) 5 VOLT CMOS FLASH MEMORY
S29C51004B12J 4 MEGABIT (524,288 x 8 BIT) 5 VOLT CMOS FLASH MEMORY
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
S29C51001T 制造商:未知廠家 制造商全稱:未知廠家 功能描述:1 MEGABIT (131,072 x 8 BIT) 5 VOLT CMOS FLASH MEMORY
S29C51004B 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4 MEGABIT (524,288 x 8 BIT) 5 VOLT CMOS FLASH MEMORY
S29C51004B12J 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4 MEGABIT (524,288 x 8 BIT) 5 VOLT CMOS FLASH MEMORY
S29C51004B12P 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4 MEGABIT (524,288 x 8 BIT) 5 VOLT CMOS FLASH MEMORY
S29C51004B12T 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4 MEGABIT (524,288 x 8 BIT) 5 VOLT CMOS FLASH MEMORY
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