參數(shù)資料
型號: MCIMX258CVM4
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 400 MHz, MICROPROCESSOR, PBGA400
封裝: 17 X 17 MM, 0.80 MM PITCH, ROHS COMPLIANT, PLASTIC, MAPBGA-400
文件頁數(shù): 118/154頁
文件大?。?/td> 1498K
代理商: MCIMX258CVM4
i.MX25 Applications Processor for Consumer and Industrial Products, Rev. 8
66
Freescale Semiconductor
Figure 32. DDR2 SDRAM Write Cycle Timing Diagram
Table 52. DDR2 SDRAM Write Cycle Parameter Table
ID
Parameter
Symbol
DDR2-400
Unit
Min.
Max.
DDR17
DQ & DQM setup time to DQS (single-ended strobe)1
1 These values are for a DQ/DM slew rate of 1 V/ns and a DQS slew rate of 1 V/ns. For additional values use Table 53, “DtDS1,
DtDH1 Derating Values for DDR2-400, DDR2-533.”
tDS1(base)
0.025
ns
DDR18
DQ & DQM hold time to DQS (single-ended strobe)1
tDH1(base)
0.025
ns
DDR19
Write cycle DQS falling edge to SDCLK output setup time
tDSS
0.2
tCK
DDR20
Write cycle DQS falling edge to SDCLK output hold time
tDSH
0.2
tCK
DDR21
DQS latching rising transitions to associated clock edges
tDQSS
-0.25
0.25
tCK
DDR22
DQS high-level width
tDQSH
0.35
tCK
DDR23
DQS low-level width
tDQSL
0.35
tCK
Table 53.
ΔtDS1, ΔtDH1 Derating Values for DDR2-400, DDR2-5331,2,3
DQS Single-Ended Slew Rate
2.0 V/ns
1.5 V/ns
1.0 V/ns
0.9 V/ns
0.8 V/ns
0.7 V/ns
0.6 V/ns
0.5 Vns
0.4 V/ns
ΔtD
S1
ΔtD
H1
ΔtD
S1
ΔtD
H1
ΔtD
S1
ΔtD
H1
ΔtD
S1
ΔtD
H1
ΔtD
S1
ΔtD
H1
ΔtD
S1
ΔtD
H1
ΔtD
S1
ΔtD
H1
ΔtD
S1
ΔtD
H1
ΔtD
S1
ΔtD
H1
SDCLK
SDCLK_B
DQS (output)
DQ (output)
DQM (output)
Data
Data
DM
DDR17
DDR18
DDR19
DDR20
DDR21
DDR23
DDR22
相關(guān)PDF資料
PDF描述
MD80C154-36/883D 8-BIT, 36 MHz, MICROCONTROLLER, CDIP40
MQ80C52TXXX-16P883D 8-BIT, MROM, 16 MHz, MICROCONTROLLER, CQFP44
MC80C52XXX-30/883:D 8-BIT, MROM, 30 MHz, MICROCONTROLLER, CDIP40
MD80C154-25/883 8-BIT, 25 MHz, MICROCONTROLLER, CDIP40
MD80C154-20P883 8-BIT, 20 MHz, MICROCONTROLLER, CDIP40
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MCIMX25LPDK 制造商:Freescale Semiconductor 功能描述:PRODUCT DEVELOPMENT KIT FOR THE I MX25 APPLICATIONS PROCESSO - Boxed Product (Development Kits) 制造商:Freescale Semiconductor 功能描述:KIT DEV I.MX25 FOR LINUX 制造商:Freescale 功能描述:Product Development Kit For The I.MX25 Applications Processor
MCIMX25LPDKJ 功能描述:開發(fā)板和工具包 - ARM HARDWARE RoHS:否 制造商:Arduino 產(chǎn)品:Development Boards 工具用于評估:ATSAM3X8EA-AU 核心:ARM Cortex M3 接口類型:DAC, ICSP, JTAG, UART, USB 工作電源電壓:3.3 V
MCIMX25LPDKJ 制造商:Freescale Semiconductor 功能描述:; LEADED PROCESS COMPATIBLE:YES; PEAK RE
MCIMX25PDKCPUJ 功能描述:開發(fā)板和工具包 - ARM CPU BD, MX25, LINUXJ RoHS:否 制造商:Arduino 產(chǎn)品:Development Boards 工具用于評估:ATSAM3X8EA-AU 核心:ARM Cortex M3 接口類型:DAC, ICSP, JTAG, UART, USB 工作電源電壓:3.3 V
MCIMX25WPDK 功能描述:開發(fā)板和工具包 - ARM MCIMX25 PDK ForLINUX RoHS:否 制造商:Arduino 產(chǎn)品:Development Boards 工具用于評估:ATSAM3X8EA-AU 核心:ARM Cortex M3 接口類型:DAC, ICSP, JTAG, UART, USB 工作電源電壓:3.3 V