參數(shù)資料
型號: MCIMX31VMN5CR2
廠商: Freescale Semiconductor
文件頁數(shù): 71/122頁
文件大?。?/td> 0K
描述: IC MPU MAP I.MX31L 473-MAPBGA
標準包裝: 750
系列: i.MX31
核心處理器: ARM11
芯體尺寸: 32-位
速度: 532MHz
連通性: 1 線,ATA,EBI/EMI,F(xiàn)IR,I²C,MMC/SD,PCMCIA,SIM,SPI,SSI,UART/USART,USB,USB OTG
外圍設(shè)備: DMA,LCD,POR,PWM,WDT
程序存儲器類型: ROMless
RAM 容量: 16K x 8
電壓 - 電源 (Vcc/Vdd): 1.22 V ~ 3.3 V
振蕩器型: 外部
工作溫度: 0°C ~ 70°C
封裝/外殼: 473-LFBGA
包裝: 帶卷 (TR)
MCIMX31/MCIMX31L Technical Data, Rev. 4.1
52
Freescale Semiconductor
Electrical Characteristics
Figure 37. SDRAM Self-Refresh Cycle Timing Diagram
NOTE
The clock will continue to run unless both CKEs are low. Then the clock will
be stopped in low state.
Table 37. SDRAM Self-Refresh Cycle Timing Parameters
ID
Parameter
Symbol
Min
Max
Unit
SD16
CKE output delay time
tCKS
1.8
ns
SDCLK
CS
CAS
RAS
ADDR
BA
WE
CKE
Don’t care
SD16
Because
of
an
order
from
the
United
States
International
Trade
Commission,
BGA-packaged
product
lines
and
part
numbers
indicated
here
currently
are
not
available
from
Freescale
for
import
or
sale
in
the
United
States
prior
to
September
2010:
i.MX31
Product
Family
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