參數(shù)資料
型號： MPC8349ECZUALDB
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： 32-BIT, 667 MHz, MICROPROCESSOR, PBGA672
封裝： 35 X 35 MM, 1.46 MM HEIGHT, 1 MM PITCH, TBGA-672
文件頁數(shù)： 9/87頁
文件大?。?/td> 1037K
代理商： MPC8349ECZUALDB
MPC8349EA PowerQUICC II Pro Integrated Host Processor Hardware Specifications, Rev. 12
Freescale Semiconductor
17
DDR and DDR2 SDRAM
Table 15 provides the DDR capacitance when GVDD(typ) = 2.5 V.
Table 16 provides the current draw characteristics for MVREF.
6.2
DDR and DDR2 SDRAM AC Electrical Characteristics
This section provides the AC electrical characteristics for the DDR and DDR2 SDRAM interface.
6.2.1
DDR and DDR2 SDRAM Input AC Timing Specifications
Table 17 provides the input AC timing specifications for the DDR2 SDRAM when GVDD(typ) = 1.8 V.
Table 18 provides the input AC timing specifications for the DDR SDRAM when GVDD(typ) = 2.5 V.
Table 15. DDR SDRAM Capacitance for GVDD(typ) = 2.5 V
Parameter/Condition
Symbol
Min
Max
Unit
Notes
Input/output capacitance: DQ, DQS
CIO
68
pF
1
Delta input/output capacitance: DQ, DQS
CDIO
—0.5
pF
1
Note:
1. This parameter is sampled. GVDD = 2.5 V ± 0.125 V, f = 1 MHz, TA = 25°C, VOUT = GVDD/2, VOUT (peak-to-peak) = 0.2 V.
Table 16. Current Draw Characteristics for MVREF
Parameter/Condition
Symbol
Min
Max
Unit
Note
Current draw for MVREF
IMVREF
—500
μA1
Note:
1. The voltage regulator for MVREF must supply up to 500 μA current.
Table 17. DDR2 SDRAM Input AC Timing Specifications for 1.8-V Interface
At recommended operating conditions with GVDD of 1.8 ± 5%.
Parameter
Symbol
Min
Max
Unit
Notes
AC input low voltage
VIL
—MVREF – 0.25
V
—
AC input high voltage
VIH
MVREF + 0.25
—
V
—
Table 18. DDR SDRAM Input AC Timing Specifications for 2.5-V Interface
At recommended operating conditions with GVDD of 2.5 ± 5%.
Parameter
Symbol
Min
Max
Unit
Notes
AC input low voltage
VIL
—MVREF – 0.31
V
—
AC input high voltage
VIH
MVREF + 0.31
—
V
—
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MPC8349ECZUALFB 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Integrated Host Processor Hardware Specifications
MPC8349E-MDS 功能描述:開發(fā)板和工具包 - 其他處理器 KIT FOR MPC8349E BDS RoHS:否 制造商:Freescale Semiconductor 產(chǎn)品:Development Systems 工具用于評估:P3041 核心:e500mc 接口類型:I2C, SPI, USB 工作電源電壓:
MPC8349E-MDS-PB 功能描述:開發(fā)板和工具包 - 其他處理器 PROCESSR BD MPC8349E RoHS:否 制造商:Freescale Semiconductor 產(chǎn)品:Development Systems 工具用于評估:P3041 核心:e500mc 接口類型:I2C, SPI, USB 工作電源電壓:
MPC8349E-MDS-PBE 功能描述:開發(fā)板和工具包 - 其他處理器 MPC8349E FAMILY ADS RoHS:否 制造商:Freescale Semiconductor 產(chǎn)品:Development Systems 工具用于評估:P3041 核心:e500mc 接口類型:I2C, SPI, USB 工作電源電壓:
MPC8349E-MITXE 功能描述:開發(fā)板和工具包 - 其他處理器 REFERENCE BRD FOR MPC834 RoHS:否 制造商:Freescale Semiconductor 產(chǎn)品:Development Systems 工具用于評估:P3041 核心:e500mc 接口類型:I2C, SPI, USB 工作電源電壓:
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