參數(shù)資料
型號: XCF128XFTG64C
廠商: Xilinx Inc
文件頁數(shù): 31/88頁
文件大小: 0K
描述: IC PROM SRL 128M GATE 64-FTBGA
標(biāo)準(zhǔn)包裝: 1
可編程類型: 系統(tǒng)內(nèi)可編程
存儲容量: 128Mb
電源電壓: 1.7 V ~ 2 V
工作溫度: -40°C ~ 85°C
封裝/外殼: 64-TBGA
供應(yīng)商設(shè)備封裝: 64-TFBGA
包裝: 托盤
產(chǎn)品目錄頁面: 601 (CN2011-ZH PDF)
其它名稱: 122-1578
Platform Flash XL High-Density Configuration and Storage Device
DS617 (v3.0.1) January 07, 2010
Product Specification
37
R
Power-On Reset
To ensure a correct power-up sequence of Platform Flash
XL, the VDD ramp time, TVDDPOR, must not be shorter than
200
μs or longer than 50 ms during power-up (see Figure 18,
page 40). These timing limits correspond to the ramp rate
values for which the power-up current is in the range where
the VDD ramp time is formally characterized or tested.
The device requires that the VDD power supply
monotonically rises to the nominal operating voltage within
the specified VDD rise time. If the power supply cannot meet
this requirement, then the device might not perform power-
on reset properly.
During the POR sequence or a reset pulse (RP), the
READY_WAIT pin is held Low by the device. After the
required supply voltages (VDD and VDDQ) have reached
their respective POR thresholds, the READY_WAIT pin is
released after a minimum time of tRWL, to give the power
supplies an additional margin for them to stabilize before
initiating the configuration.
For systems using a slow-rising power supply, an additional
power-monitoring circuit can be used to delay the release of
the READY_WAIT pin.
If the power drops below the power-down threshold
(VDDPD), the device is reset and the READY_WAIT pin is
held Low again until the POR threshold is reached (see
Figure 18 for an illustration).
The power-up sequences with and without free-running
clock are represented in Figure 11, page 31 and Figure 17.
X-Ref Target - Figure 17
Notes:
1.
W is tied High.
Figure 17: Power-Up Sequence (System with Free-Running Clock)
K
V
DD/VDDQ
G
L
A22-A0
Valid Address
DQ15–DQ0
READY_WAIT
12
3
4
Latency Cycles (default = 7)
T
VHRWZ
T
AVKH3
T
KH3AX
T
KHQV
DS617_13_053008
T
RWRT
FFFFh (Sync + Dummy Cycle)
D0
D1
D2
D3
D4
D5
Address not Valid
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