參數(shù)資料
型號: MPC8544ECVTANGB
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 800 MHz, RISC PROCESSOR, PBGA783
封裝: 29 X 29 MM, 1 MM PITCH, LEAD FREE, PLASTIC, BGA-783
文件頁數(shù): 32/120頁
文件大?。?/td> 1321K
代理商: MPC8544ECVTANGB
MPC8544E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 2
Freescale Semiconductor
19
DDR and DDR2 SDRAM
6.2
DDR SDRAM AC Electrical Characteristics
This section provides the AC electrical characteristics for the DDR SDRAM interface.
6.2.1
DDR SDRAM Input AC Timing Specifications
Table 15 provides the input AC timing specifications for the DDR SDRAM when GVDD(typ) = 1.8 V.
Table 16 provides the input AC timing specifications for the DDR SDRAM when GVDD(typ) = 2.5 V.
Table 17 provides the input AC timing specifications for the DDR SDRAM interface.
Table 15. DDR2 SDRAM Input AC Timing Specifications for 1.8-V Interface
At recommended operating conditions.
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 16. DDR SDRAM Input AC Timing Specifications for 2.5-V Interface
At recommended operating conditions.
Parameter
Symbol
Min
Max
Unit
Notes
AC input low voltage
VIL
—MVREF – 0.31
V
AC input high voltage
VIH
MVREF + 0.31
V
Table 17. DDR SDRAM Input AC Timing Specifications
At recommended operating conditions.
Parameter
Symbol
Min
Max
Unit
Notes
Controller skew for MDQS—MDQ/MECC/MDM
tCISKEW
ps
1, 2
533 MHz
–300
300
3
400 MHz
–365
365
333 MHz
–390
390
Notes:
1. tCISKEW represents the total amount of skew consumed by the controller between MDQS[n] and any corresponding bit that
will be captured with MDQS[n]. This should be subtracted from the total timing budget.
2. The amount of skew that can be tolerated from MDQS to a corresponding MDQ signal is called tDISKEW. This can be
determined by the following equation: tDISKEW = ± (T/4 – abs(tCISKEW)), where T is the clock period and abs(tCISKEW) is the
absolute value of tCISKEW. See Figure 3.
3. Maximum DDR1 frequency is 400 MHz.
相關PDF資料
PDF描述
MPC8544CVTANGB 32-BIT, 800 MHz, RISC PROCESSOR, PBGA783
MPC8544ECVTAQFB 32-BIT, 1000 MHz, RISC PROCESSOR, PBGA783
MPC8544ECVTAQGB 32-BIT, 1000 MHz, RISC PROCESSOR, PBGA783
MPC8544VTANJB 32-BIT, 800 MHz, RISC PROCESSOR, PBGA783
MPC8544VTARJ 32-BIT, 533 MHz, MICROPROCESSOR, PBGA783
相關代理商/技術參數(shù)
參數(shù)描述
MPC8544ECVTAQG 功能描述:微處理器 - MPU PQ38K 8544E COMMERCIAL RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-324
MPC8544ECVTAQGA 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC PQ38K 8544E RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(shù)量:3 設備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風格:SMD/SMT
MPC8544EDVTALF 功能描述:微處理器 - MPU PQ3 8544E Netwrk Comm Indstrl Cntrl RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-324
MPC8544EDVTANG 功能描述:微處理器 - MPU PQ3 8544E Netwrk Comm Indstrl Cntrl RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-324
MPC8544EVTALF 功能描述:微處理器 - MPU SINGLE WIDTH FULL HEIGHT RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-324