參數(shù)資料
型號: QL6325-4PB516C
廠商: QUICKLOGIC CORP
元件分類: FPGA
英文描述: FPGA, 1536 CLBS, 320640 GATES, PBGA516
封裝: 1.27 MM PITCH, PLASTIC, BGA-516
文件頁數(shù): 11/38頁
文件大?。?/td> 1093K
代理商: QL6325-4PB516C
2002 QuickLogic Corporation
19
QL6325 Eclipse Data Sheet Rev C
Power-up Sequencing
Figure 22: Power-up Requirements
The following requirements must be met when powering up a device (refer to Figure 22):
When ramping up the power supplies keep (VCCIO -VCC)MAX 500 mV. Deviation from
this recommendation can cause permanent damage to the device.
VCCIO must lead VCC when ramping the device.
The power supply must be greater than or equal to 400 s to reach VCC. Ramping to
VCC/VCCIO before reaching 400 s can cause the device to behave improperly.
A diode is present in-between VCC and VCCIO, as shown in Figure 23.
Figure 23: Internal Diode Between V
CC and VCCIO
Vol
tage
V
CCIO
V
CC
(V
CCIO -VCC)MAX
400 us
V
CC
V CC
V CCIO
Internal Logic
Cells, RAM
blocks, etc
IO Cells
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