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ST6G3244ME 데이터시트(PDF) 16 Page - STMicroelectronics

부품명 ST6G3244ME
상세설명  Level translator for SD, SDIO, mini SD, and micro SD Cards with internal I/O supply and ±15 kV ESD protection
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
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ST6G3244ME 데이터시트(HTML) 16 Page - STMicroelectronics

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Data transmission
ST6G3244ME
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Doc ID 022157 Rev 2
6.1
Test circuit from host to SD Card
The test circuit from the host to the SD Card is shown in Figure 6. Timings are measured for
the whole line cell (translator + EMI + ESD) on an external load CSD = 15 pF (board
capacitance 5 pF + SD Card capacitance 10 pF).
Figure 6.
Test circuit from host to SD Card
6.2
Test circuit from SD Card to host
The test circuit from the SD Card to the host is shown in Figure 7. Timings are measured for
the whole line cell (translator + EMI + ESD) on an external load CHOST = 10 pF (board
capacitance + host capacitance).
Figure 7.
Test circuit from SD Card to host
tr_CLKF
Rise time for CLK feedback
See
Section 6.2
VCCB = 1.8 V
1.0
3
ns
VCCB = 2.9 V
1.0
3
tf_CLKF
Fall time for CLK feedback
See
Section 6.2
VCCB = 1.8 V
1.0
3
ns
VCCB = 2.9 V
1.0
3
fMAX
Clock rate
60
MHz
Data rate
120
Mbps
1.
The time after the .dir signal transition that the device needs to switch direction, after that it is ready to accept valid data on
the switched input.
Table 12.
AC characteristics (TA = –40 °C to 85 °C) (continued)
Symbol
Parameter
Test condition
Min. Typ. Max.
Unit
HOST
SD Card
CSD = 15 pF
AM04960v2
HOST
SD Card
CHOST = 10 pF
AM04961v2



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