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STW4810 数据表(PDF) 63 Page - STMicroelectronics

部件名 STW4810
功能描述  Power Management for Multimedia Processors
PDF  72 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STW4810 数据表(HTML) 63 Page - STMicroelectronics

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STw4810
5 Electrical and timing characteristics
Rev3
63/72
Figure 14. Propagation and clock/data skew times
TPHC
Propagation time
from Host to card
Figure 14
7ns
TPCH
Propagation time
from card to host
Figure 14
7ns
TSHC
Clock /data skew
time from host to
card
Figure 14
Reference is
CLKOUT
+/- 0.5
ns
TSCH
Clock /data skew
time from card to
host
Figure 14
Reference is
MMCLK
+/- 0.5
ns
TR
Rise time
3
ns
TF
Fall time
3
ns
C1LINE
Between
multimedia
processor &
STw4810
Bus line
capacitance
f < 52 Mhz
20(3)
pF
C2LINE
Between STw4810
& MMC card
Bus line
capacitance
f < 52 MHz
20 + 20(4)
pF
1.
Guaranteed by design
2.
MMC interface pull up resistors are in EMIF06-HCM01F2 device (7 K
Ω for CMD; 75 KΩ for Data wires)
3.
20 pF for equivalent board parasitic capacitance.
4.
20 pF for EMIF06 protection + 20 pF for board parasitic capacitance.
Table 50.
SD/MMC card interface
Symbol
Description
Test conditions
Min.
Typ.
Max.
Units
MCCLK
MCCMD
MCDATA[3:0]
MCFBCLK
t
50%
2 ns
2 ns
10%
90%
10%
90%
t
50%
TPHC
CLKOUT
CMDOUT
DATAOUT[3:0]
LATCHCLK
TPHC
MCCLK
MCCMD
MCDATA[3:0]
MCFBCLK
t
50%
2 ns
2 ns
10%
90%
10%
90%
t
50%
TPCH
CLKOUT
CMDOUT
DATAOUT[3:0]
LATCHCLK
TPCH
MCDATA[3:0]
2 ns
10%
90%
TSHC
MCCLK
50%
CLKOUT
DATAOUT[3:0]
MCDATA[3:0]
2 ns
10%
90%
TSCH
MCCLK
50%
CLKOUT
DATAOUT[3:0]



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