參數(shù)資料
型號(hào)： STPCI2HEYI
廠商： STMICROELECTRONICS
元件分類： 外設(shè)及接口
英文描述： MULTIFUNCTION PERIPHERAL, PBGA516
封裝： PLASTIC, BGA-516
文件頁(yè)數(shù)： 86/109頁(yè)
文件大?。?/td> 2430K
代理商： STPCI2HEYI
STPC ATLAS
78/109
Issue 1.1 - March 23, 2004
6.3.3. SDRAM
The STPC provides all the signals for SDRAM
control. Up to 128 MBytes of main memory are
supported. All Banks must be 64 bits wide. Up to 4
memory banks are available when using 16Mbit
devices. Only up to 2 banks can be connected
when using 64Mbit and 128Mbit components due
to the reallocation of CS2# and CS3# signals. This
is described in Table 6-4 and Table 6-5.
Graphics memory resides at the beginning of
Bank 0. Host memory begins at the top of graphics
memory and extends to the top of populated
SDRAM. Bank 0 must always be populated.
typical implementations.
The purpose of the serial resistors is to reduce
signal
oscillation
and
EMI
by
filtering
line
reflections. The capacitance in Figure 6-5 has a
filtering effect too, while it is used for propagation
delay compensation in the 2 other figures.
Figure 6-5. One Memory Bank with 4 Chips (16-bit)
Refer to Section 4.5.3. for detailed timing constraints.
CS0#
BA[1:0]
MA[12:0]
WE#
RAS0#
DQM[7:0]
MCLKI
MCLKO
DQM[7:6]
Reference Knot
CAS0#
MD[63:48]
DQM[5:4]
MD[47:32]
DQM[3:2]
MD[31:16]
DQM[1:0]
MD[15:0]
MD[63:0]
MCLKA
MCLKB
MCLKC
MCLKD
10pF
Length(MCLKI+1ns(+/- 0.5ns)) = Length(MCLKx)
with x = {A,B,C,D}
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
STPCINDUSTRIAL 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:PC Compatible Embedded Microprocessor
STP-CN04 功能描述:烙鐵 Cartridge Conical 0.4mm (0.016in) RoHS:否 制造商:Weller 產(chǎn)品:Soldering Stations 類型:Digital, Iron, Stand, Cleaner 瓦特:50 W 最大溫度:+ 850 F 電纜類型:US Cord Included
STP-CN05 功能描述:烙鐵 Cartridge Conical 0.5mm (0.02in) RoHS:否 制造商:Weller 產(chǎn)品:Soldering Stations 類型:Digital, Iron, Stand, Cleaner 瓦特:50 W 最大溫度:+ 850 F 電纜類型:US Cord Included
STP-CN10 功能描述:烙鐵 Cartridge Conical 1mm (0.039in) RoHS:否 制造商:Weller 產(chǎn)品:Soldering Stations 類型:Digital, Iron, Stand, Cleaner 瓦特:50 W 最大溫度:+ 850 F 電纜類型:US Cord Included
STP-CNB04 功能描述:烙鐵 Cartridge Conical Bent 0.4mm (0.016in) RoHS:否 制造商:Weller 產(chǎn)品:Soldering Stations 類型:Digital, Iron, Stand, Cleaner 瓦特:50 W 最大溫度:+ 850 F 電纜類型:US Cord Included
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