參數(shù)資料
型號： MC2GH256NMCA-2SA00
廠商： SAMSUNG SEMICONDUCTOR CO. LTD.
英文描述： SAMSUNG MultiMediaCard
中文描述： 三星多媒體
文件頁數(shù)： 19/102頁
文件大?。?/td> 1384K
代理商： MC2GH256NMCA-2SA00
MultiMediaCard
TM
19
Sep.22.2005
Revision 0.3
5.4.2 Bus Operating Conditions
General
Power Supply Voltage - High Voltage MultiMediaCard
Power Supply Voltage - Dual voltage MultiMediaCard
The current consumption of the card for the different card configurations is defined in the power class fields in the
EXT_CSD register.
The current consumption of any card during the power-up procedure, while the host has not sent yet a valid OCR range,
must not exceed 10 mA
5.4.3 Bus Signal Line Load
The total capacitance C
L
of each line of the MultiMediaCard bus is the sum of the bus master capacitance C
HOST
, the bus
capacitance C
BUS
itself and the capacitance C
CARD
of the card connected to this line:
C
L
= C
HOST
+ C
BUS
+ C
CARD
Requiring the sum of the host and bus capacitances not to exceed 20 pF:
Parameter
Symbol
Min
Max.
Unit
Remark
Peak voltage on all lines
-0.5
3.6
V
All Inputs
Input Leakage Current
-10
10
μ
A
All Outputs
Output Leakage Current
-10
10
μ
A
Parameter
Symbol
V
DD
Min
2.7
Max.
3.6
Unit
V
Remark
Supply voltage
Supply voltage differentials (V
SS1
, V
SS2
)
-0.5
0.5
V
Parameter
Symbol
V
DDL
V
DDH
Min
1.65
Max.
1.95
Unit
V
Remark
Supply voltage (low voltage range)
1.95V - 2.7V is not
supported
Supply voltage (high voltage range)
2.7
3.6
V
Supply voltage differentials (V
SS1
, V
SS2
)
-0.5
0.5
V
Parameter
Symbol
Min
Max.
Unit
Remark
Pull-up resistance for CMD
R
CMD
R
DAT
C
L
C
CARD
4.7
100
KOhm
to prevent bus floating
Pull-up resistance for DAT0-7
50
100
KOhm
to prevent bus floating
Bus signal line capacitance
30
pF
Single card
Single card capacitance
7
pF
Maximum signal line inductance
16
nH
f
PP
<= 52 MHz
Table 5-2 : Bus Opeating Conditions
Table 5-3 : Power Supply Voltage
Table 5-4 : Power Supply Voltage
Table 5-5 : Host and Bus Capacities
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