参数资料
型号: MCIMX31DVKN5DR2
厂商: Freescale Semiconductor
文件页数: 106/118页
文件大小: 0K
描述: IC MPU I.MX31 CONSUMR 457TMAP
标准包装: 1,000
系列: i.MX31
核心处理器: ARM11
芯体尺寸: 32-位
速度: 532MHz
连通性: 1 线,ATA,EBI/EMI,FIR,I²C,MMC/SD,PCMCIA,SIM,SPI,SSI,UART/USART,USB,USB OTG
外围设备: DMA,LCD,POR,PWM,WDT
程序存储器类型: ROMless
RAM 容量: 16K x 8
电压 - 电源 (Vcc/Vdd): 1.22 V ~ 3.3 V
振荡器型: 外部
工作温度: 0°C ~ 70°C
封装/外壳: 457-LFBGA
包装: 带卷 (TR)
MCIMX31/MCIMX31L Technical Data, Rev. 4.3
88
Freescale Semiconductor
Electrical Characteristics
Figure 71. SDHC Timing Diagram
4.3.20
SIM Electrical Specifications
Each SIM card interface consist of a total of 12 pins (for 2 separate ports of 6 pins each. Mostly one port
with 5 pins is used).
Table 55. SDHC Interface Timing Parameters
ID
Parameter
Symbol
Min
Max
Unit
Card Input Clock
SD1
Clock Frequency (Low Speed)
fPP
1
1 In low speed mode, card clock must be lower than 400 kHz, voltage ranges from 2.7 V–3.3 V.
0
400
kHz
Clock Frequency (SD/SDIO Full Speed)
fPP
2
2 In normal data transfer mode for SD/SDIO card, clock frequency can be any value between 0 MHz–25 MHz.
025
MHz
Clock Frequency (MMC Full Speed)
fPP
3
3 In normal data transfer mode for MMC card, clock frequency can be any value between 0 MHz–20 MHz.
020
MHz
Clock Frequency (Identification Mode)
fOD
4
4 In card identification mode, card clock must be 100 kHz–400 kHz, voltage ranges from 2.7 V–3.3 V.
100
400
kHz
SD2
Clock Low Time
tWL
10
ns
SD3
Clock High Time
tWH
10
ns
SD4
Clock Rise Time
tTLH
—10
ns
SD5
Clock Fall Time
tTHL
—10
ns
SDHC Output/Card Inputs CMD, DAT (Reference to CLK)
SD6
SDHC output delay
tODL
–6.5
3
ns
SDHC Input/Card Outputs CMD, DAT (Reference to CLK)
SD7
SDHC input setup
tIS
—18.5
ns
SD8
SDHC input hold
tIH
–11.5
ns
SD1
SD5
SD7
SD4
SD8
CMD
Output from SDHC to card
DATA[3:0]
Input to SDHC
CLK
SD2
SD6
SD3
CMD
DATA[3:0]
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