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JS28F128P30TF75A 参数 Datasheet PDF下载

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型号: JS28F128P30TF75A
PDF下载: 下载PDF文件 查看货源
内容描述: 恒忆Axcell P30-65nm闪存 [Numonyx Axcell P30-65nm Flash Memory]
分类和应用: 闪存
文件页数/大小: 90 页 / 1194 K
品牌: MICRON [ MICRON TECHNOLOGY ]
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P30-65nm SBC  
12.0  
Power and Reset Specifications  
12.1  
Power-Up and Power-Down  
Power supply sequencing is not required if VPP is connected to VCC or VCCQ. Otherwise  
VCC and VCCQ should attain their minimum operating voltage before applying VPP.  
Power supply transitions should only occur when RST# is low. This protects the device  
from accidental programming or erasure during power transitions.  
12.2  
Reset Specifications  
Asserting RST# during a system reset is important with automated program/erase  
devices because systems typically expect to read from flash memory when coming out  
of reset. If a CPU reset occurs without a flash memory reset, proper CPU initialization  
may not occur. This is because the flash memory may be providing status information,  
instead of array data as expected. Connect RST# to the same active low reset signal  
used for CPU initialization.  
Also, because the device is disabled when RST# is asserted, it ignores its control inputs  
during power-up/down. Invalid bus conditions are masked, providing a level of memory  
protection.  
Table 18: Power and Reset  
Num  
Symbol  
Parameter  
RST# pulse width low  
Min  
Max  
Unit  
Notes  
P1  
t
100  
-
-
ns  
1,2,3,4  
1,3,4,7  
1,3,4,7  
1,4,5,6  
PLPH  
RST# low to device reset during erase  
RST# low to device reset during program  
VCC Power valid to RST# de-assertion (high)  
25  
25  
-
P2  
t
t
PLRH  
VCCPH  
-
µs  
P3  
60  
Notes:  
1.  
2.  
3.  
4.  
5.  
6.  
7.  
These specifications are valid for all device versions (packages and speeds).  
The device may reset if t is < t Min, but this is not guaranteed.  
PLPH  
PLPH  
Not applicable if RST# is tied to VCC.  
Sampled, but not 100% tested.  
When RST# is tied to the VCC supply, device will not be ready until t  
after VCC V  
VCCPH  
.
VCCPH  
CCMIN  
When RST# is tied to the VCCQ supply, device will not be ready until t  
Reset completes within t  
after VCC V  
.
CCMIN  
if RST# is asserted while no erase or program operation is executing.  
PLPH  
Datasheet  
43  
Apr 2010  
OrderNumber:208033-02