參數(shù)資料
型號: PEF22554E
廠商: INFINEON TECHNOLOGIES AG
元件分類: 通信及網(wǎng)絡(luò)
英文描述: Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
中文描述: Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
文件頁數(shù): 3/30頁
文件大小: 914K
代理商: PEF22554E
QuadFALC
PEF 22554
Overview
Delta Sheet
3/30
2002-09-16
supply being generated internally using an on-chip voltage regulator. In order to
minimize power consumption, it is also possible to operate the device using separate
external 3.3 V and 1.8 V supplies. Please note that the 1.8 V supply requires de-coupling
whether generated on-chip or externally. Supply voltage selection is done by using pin
VSEL. See
Figure 1
and
Figure 2
.
Figure 1
Single Voltage Supply
Figure 2
Dual Voltage Supply
F0248
V
DDP
V
DDC
V
DDC
V
DDX
V
DDR
V
SSP
V
SSX
V
SSR
VSEL
V
DD
,
V
DDP
, V
DDX
,
V
DDR
>
V
DDC
must always be guaranteed,
also during power on and
power down sequences.
QuadFALC
V
SS
(can be
left open)
3.3 V
V
DD
3.3 V
F0249
V
DDX
V
DDR
V
DDP
V
DDC
V
DDC
3.3 V
1.8 V
V
SSP
V
SSX
V
SSR
VSEL
V
DD
,
V
DDP
,
V
DDX
,
V
DDR
>
V
DDC
must always be guaranteed,
also during power on and
power down sequences.
QuadFALC
V
SS
V
DD
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