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MX29LV160CBTC-70G 参数 Datasheet PDF下载

MX29LV160CBTC-70G图片预览
型号: MX29LV160CBTC-70G
PDF下载: 下载PDF文件 查看货源
内容描述: 16M - BIT [ 2Mx8 / 1Mx16 ] CMOS单电压3V仅限于Flash存储器 [16M-BIT [2Mx8/1Mx16] CMOS SINGLE VOLTAGE 3V ONLY FLASH MEMORY]
分类和应用: 闪存存储内存集成电路光电二极管ISM频段
文件页数/大小: 66 页 / 923 K
品牌: Macronix [ MACRONIX INTERNATIONAL ]
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MX29LV160C T/B  
REQUIREMENTS FOR READING ARRAY DATA  
Characteristics" section contains timing specification  
table and timing diagrams for write operations.  
To read array data from the outputs, the system must  
drive the CE# and OE# pins to VIL. CE# is the power  
control and selects the device. OE# is the output control  
and gates array data to the output pins.WE# should re-  
main at VIH.  
STANDBY MODE  
When using both pins of CE# and RESET#, the device  
enter CMOS Standby with both pins held at Vcc ±0.3V.  
If CE# and RESET# are held at VIH, but not within the  
range ofVCC ±0.3V, the device will still be in the standby  
mode, but the standby current will be larger.During Auto  
Algorithm operation,Vcc active current (ICC2) is required  
even CE# = "H" until the operation is completed. The  
device can be read with standard access time (tCE) from  
either of these standby modes, before it is ready to read  
data.  
The internal state machine is set for reading array data  
upon device power-up, or after a hardware reset. This  
ensures that no spurious alteration of the memory con-  
tent occurs during the power transition. No command is  
necessary in this mode to obtain array data. Standard  
microprocessor read cycles that assert valid address  
on the device address inputs produce valid data on the  
device data outputs.The device remains enabled for read  
access until the command register contents are altered.  
OUTPUT DISABLE  
WRITE COMMANDS/COMMAND SEQUENCES  
With the OE# input at a logic high level (VIH), output  
from the devices are disabled.This will cause the output  
pins to be in a high impedance state.  
To program data to the device or erase sectors of  
memory, the system must drive WE# and CE# to VIL,  
and OE# to VIH.  
An erase operation can erase one sector, multiple sec-  
tors, or the entire device.Table 1 andTable 2 indicate the  
address space that each sector occupies. A "sector ad-  
dress" consists of the address bits required to uniquely  
select a sector. The Writing specific address and data  
commands or sequences into the command register ini-  
tiates device operations.Table 5 defines the valid regis-  
ter command sequences.Writing incorrect address and  
data values or writing them in the improper sequence  
resets the device to reading array data. Section has de-  
tails on erasing a sector or the entire chip, or suspend-  
ing/resuming the erase operation.  
RESET# OPERATION  
The RESET# pin provides a hardware method of reset-  
ting the device to reading array data.When the RESET#  
pin is driven low for at least a period of tRP, the device  
immediately terminates any operation in progress,  
tristates all output pins, and ignores all read/write com-  
mands for the duration of the RESET# pulse.The device  
also resets the internal state machine to reading array  
data. The operation that was interrupted should be re-  
initiated once the device is ready to accept another com-  
mand sequence, to ensure data integrity.  
After the system writes the "read silicon-ID" and "sector  
protect verify" command sequence, the device enters  
the "read silicon-ID" and "sector protect verify" mode.  
The system can then read "read silicon-ID" and "sector  
protect verify" codes from the internal register (which is  
separate from the memory array) on Q7-Q0. Standard  
read cycle timings apply in this mode. Refer to the "read  
silicon-ID" and "sector protect verify" Mode and "read  
silicon-ID" and "sector protect verify" Command Se-  
quence section for more information.  
Current is reduced for the duration of the RESET# pulse.  
When RESET# is held at VSS±0.3V, the device draws  
CMOS standby current (ICC4).If RESET# is held atVIL  
but not within VSS±0.3V, the standby current will be  
greater.  
The RESET# pin may be tied to system reset circuitry.  
A system reset would that also reset the Flash memory,  
enabling the system to read the boot-up firmware from  
the Flash memory.  
ICC2 in the DC Characteristics table represents the ac-  
tive current specification for the write mode. The "AC  
If RESET# is asserted during a program or erase opera-  
tion, the RY/BY# pin remains a "0" (busy) until the inter-  
P/N:PM1186  
REV. 1.2, JAN. 19, 2006  
12  
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