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參數(shù)資料
| 型號： | MX29LV160 |
| 廠商： | Macronix International Co., Ltd. |
| 英文描述： | 16M-BIT [2Mx8/1Mx16] CMOS SINGLE VOLTAGE 3V ONLY FLASH MEMORY |
| 中文描述： | 1,600位[2Mx8/1Mx16] CMOS單電壓3V時僅閃存 |
| 文件頁數(shù)： | 19/66頁 |
| 文件大小： | 1359K |
| 代理商： | MX29LV160 |
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19
P/N:PM0866
MX29LV160T/B & MX29LV160AT/AB
REV. 3.7, APR. 23, 2003
POW
ER SUPPLY DECOUPLING
In order to reduce power switching effect, each device
should have a 0.1uF ceramic capacitor connected be-
tween its VCC and GND.
POWER-UP SEQUENCE
The MX29LV160T/B & MX29LV160AT/AB powers up in
the Read only mode. In addition, the memory contents
may only be altered after successful completion of the
predefined command sequences.
TEMPORARY SECTOR UNPROTECT
This feature allows temporary unprotection 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 un-protected sector. Once VID is remove from the
RESET pin. All the previously protected sectors are pro-
tected again.
Q3
Sector Erase Timer
After the completion of the initial sector erase command
sequence, the sector erase time-out will begin. Q3 will
remain low until the time-out is complete. Data Polling
and Toggle Bit are valid after the initial sector erase com-
mand sequence.
If Data Polling or the Toggle Bit indicates the device has
been written with a valid erase command, Q3 may be
used to determine if the sector erase timer window is
still open. If Q3 is high ("1") the internally controlled
erase cycle has begun; attempts to write subsequent
commands to the device will be ignored until the erase
operation is completed as indicated by Data Polling or
Toggle Bit. If Q3 is low ("0"), the device will accept
additional sector erase commands. To insure the com-
mand has been accepted, the system software should
check the status of Q3 prior to and following each sub-
sequent sector erase command. If Q3 were high on the
second status check, the command may not have been
accepted.
DATA PROTECTION
The MX29LV160T/B & MX29LV160AT/AB is designed
to offer protection against accidental erasure or program-
ming caused by spurious system level signals that may
exist during power transition. During power up the de-
vice automatically resets the state machine in the Read
mode. In addition, with its control register architecture,
alteration of the memory contents only occurs after suc-
cessful completion of specific command sequences. The
device also incorporates several features to prevent in-
advertent write cycles resulting from VCC power-up and
power-down transition or system noise.
WRITE PULSE "GLITCH" PROTECTION
Noise pulses of less than 5ns (typical) on OE, CE or WE
will not initiate a write cycle.
LOGICAL INHIBIT
Writing is inhibited by holding any one of OE = VIL, CE
= VIH or WE = VIH. To initiate a write cycle CE and WE
must be a logical zero while OE is a logical one.
SECTOR PROTECTION
The MX29LV160T/B & MX29LV160AT/AB features hard-
ware sector protection. This feature will disable both
program and erase operations for these sectors pro-
tected. To activate this mode, the programming equip-
ment must force VID on address pin A9 and OE (sug-
gest VID = 12V). Programming of the protection cir-
cuitry begins on the falling edge of the WE pulse and is
terminated on the rising edge. Please refer to sector pro-
tect algorithm and waveform.
To verify programming of the protection circuitry, the pro-
gramming equipment must force VID on address pin A9
( with CE and OE at VIL and WE at VIH). When A1=VIH,
A0=VIL, A6=VIL, it will produce a logical "1" code at
device output Q0 for a protected sector. Otherwise the
device will produce 00H for the unprotected sector. In
this mode, the addresses, except for A1, are don't care.
Address locations with A1 = VIL are reserved to read
manufacturer and device codes. (Read Silicon ID)
It is also possible to determine if the sector is protected
in the system by writing a Read Silicon ID command.
Performing a read operation with A1=VIH, it will produce
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| MX29LV160DBTI-70G | 功能描述:IC FLASH PAR 3V 16MB 70NS 48TSOP RoHS:是 類別:集成電路 (IC) >> 存儲器 系列:MX29LV 標準包裝:1 系列:- 格式 - 存儲器:閃存 存儲器類型:閃存 - NAND 存儲容量:4G（256M x 16） 速度:- 接口:并聯(lián) 電源電壓:2.7 V ~ 3.6 V 工作溫度:0°C ~ 70°C 封裝/外殼:48-TFSOP（0.724"，18.40mm 寬） 供應商設備封裝:48-TSOP I 包裝:Digi-Reel® 其它名稱:557-1461-6 |
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