- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄299526 > MX29LV640UXBC-90 (MACRONIX INTERNATIONAL CO LTD) 4M X 16 FLASH 2.7V PROM, 90 ns, PBGA63 PDF資料下載
參數(shù)資料
| 型號： | MX29LV640UXBC-90 |
| 廠商： | MACRONIX INTERNATIONAL CO LTD |
| 元件分類： | PROM |
| 英文描述： | 4M X 16 FLASH 2.7V PROM, 90 ns, PBGA63 |
| 封裝： | 11 X 12 MM, 1.30 MM HEIGHT, 0.80 MM PITCH, PLASTIC, MO-210, CSP-63 |
| 文件頁數(shù)： | 7/66頁 |
| 文件大?。?/td> | 1142K |
| 代理商： | MX29LV640UXBC-90 |
第1頁第2頁第3頁第4頁第5頁第6頁當(dāng)前第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁
15
P/N:PM0744
REV. 1.0, OCT. 29, 2003
MX29LV640U
It is also possible to determine if the chip is unprotected
in the system by writing the Read Silicon ID command.
Performing a read operation with A1=VIH, it will produce
00H at data outputs (Q0-Q15) for an unprotected sector.
It is noted that all sectors are unprotected after the chip
unprotected algorithm is completed.
WRITE PROTECT (WP)
This Write Protect function provides a hardware protec-
tion method on the first sector without using VID.
If the system asserts VIL on the WP pin, the device
disable program and erase function in the first sector
independently of whether those sectors were protected
or unprotect using the method described in "Sector Group
Protection and Unprotect".
If the system asserts VIH on the WP pin, the device
reverts to whether the first sector was previously set to
be protected or unprotected using the method described
in "Sector Group Protection and Unprotect".
TEMPORARY SECTOR GROUP UNPROTECT
OPERATION
This feature allows temporary unprotect of previously
protected sector to change data in-system. The Tempo-
rary Sector Unprotect mode is activated by setting the
RESET pin to VID(11.5V-12.5V). During this mode, for-
merly protected sectors can be programmed or erased
as unprotected sector. Once VID is remove from the RE-
SET pin, all the previously protected sectors are pro-
tected again.
SILICON ID READ OPERATION
Flash memories are intended for use in applications where
the local CPU alters memory contents. As such, manu-
facturer and device codes must be accessible while the
device resides in the target system. PROM program-
mers typically access signature codes by raising A9 to
a high voltage. However, multiplexing high voltage onto
address lines is not generally desired system design prac-
tice.
MX29LV640U provides hardware method to access the
silicon ID read operation.Which method requires VID on
A9 pin, VIL on CE, OE, A6, and A1 pins. Which apply
VIL on A0 pin, the device will output MXIC's manufac-
ture code of C2H. Which apply VIH on A0 pin, the device
will output MX29LV640U device code of 22D7H.
VERIFY SECTOR GROUP PROTECT STATUS
OPERATION
MX29LV640U provides hardware method for sector group
protect status verify. Which method requires VID on A9
pin, VIH on WE and A1 pins, VIL on CE, OE, A6, and A0
pins, and sector address on A16 to A21 pins. Which the
identified sector is protected, the device will output 01H.
Which the identified sector is not protect, the device will
output 00H.
DATA PROTECTION
The MX29LV640U is designed to offer protection against
accidental erasure or programming caused by spurious
system level signals that may exist during power transi-
tion. During power up the device automatically resets
the state machine in the Read mode. In addition, with its
control register architecture, alteration of the memory
contents only occurs after successful completion of spe-
cific command sequences. The device also incorporates
several features to prevent inadvertent write cycles re-
sulting from VCC power-up and power-down transition or
system noise.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MX5-A-14P-L-B-C18 | RECTANGULAR CONNECTOR |
| MX5-E-22S-C-N | RECTANGULAR CONNECTOR |
| MX6-Z96F | 96 CONTACT(S), FEMALE, TWO PART BOARD CONNECTOR, CRIMP, SOCKET |
| MX602-020.48M | TCXO, CLOCK, 20.48 MHz, LVCMOS OUTPUT |
| MX602-010.24M | TCXO, CLOCK, 10.24 MHz, LVCMOS OUTPUT |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MX29LV800CBMC-70G | 制造商:Macronix International Co Ltd 功能描述:IC FLASH 8MBIT 70NS 44SOP 制造商:Macronix International Co Ltd 功能描述:MX29LV Series 3 V 8 Mb (1 M x 8 / 512 K x 16) 70 ns Parallel Flash - SOP-44 |
| MX29LV800CBMC-90G | 制造商:Macronix International Co Ltd 功能描述:IC FLASH 8MBIT 90NS 44SOP |
| MX29LV800CBMI-70G | 制造商:Macronix International Co Ltd 功能描述:IC FLASH 8MBIT 70NS 44SOP |
| MX29LV800CBTC-70G | 制造商:Macronix International Co Ltd 功能描述:IC FLASH 8MBIT 70NS 48TSOP 制造商:Macronix International Co Ltd 功能描述:MX29LV Series 3 V 8 Mb (1M x 8/512k x 16) 90 ns Parallel Flash - TSOP-48 |
| MX29LV800CBTC-90G | 制造商:Macronix International Co Ltd 功能描述:IC FLASH 8MBIT 90NS 48TSOP 制造商:Macronix International Co Ltd 功能描述:MX29LV Series 3 V 8 Mb (1M x 8/512k x 16) 90 ns Parallel Flash - TSOP-48 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。