hb28b128mm2 Renesas Electronics Corporation., hb28b128mm2 Datasheet - Page 82

• Manufacturer Part Number: hb28b128mm2
• Description: Multimediacard 16 Mbyte/32 Mbyte/64 Mbyte/128 Mbyte
• Manufacturer: Renesas Electronics Corporation.

HB28H016/D032/B064/B128MM2
Absolute Maximum Ratings
Absolute maximum ratings are those values beyond which damage to the device may occur. Functional
operation under these conditions or at any other condition beyond those indicated in the operational
sections of this specification is not implied:
Parameter
Supply voltage
Total power dissipation
ESD
protection
Inputs
Outputs
Bus Signal Line Load
The total capacitance C
C
where N is the number of connected cards. Requiring the sum of the host and bus capacitance’s not to
exceed 30 pF for up to 10 cards, and 40 pF for up to 30 cards, the following values must not be exceeded:
Parameter
Pull-up resistance for CMD
Pull-up resistance for DAT
Bus signal line capacitance
Bus signal line capacitance
Maximum signal line inductance
Note:
Rev.5.0, Jan. 2003, page 80 of 88
HOST
, the bus capacitance C
1. The value of pull-up resistance should be optimized according to the host system.
C
L
Contact Pads
Non Contact Pads
coupling plane discharge
Non Contact Pads
air discharge
Input voltage
Output voltage
High-level output current
Low-level output current
=
C
HOST
+
C
L
BUS
of each line of the MultiMediaCard bus is the sum of the bus master capacitance
+
BUS
N*C
itself and the capacitance C
CARD
Symbol
R
R
C
C
CMD
DAT
L
L
Symbol Min
V
P
V
V
I
I
OHmax
OLmax
CC
d
Imax
Omax
Min
4.7
50
—
—
—
–0.5
–4
–8
–15
–0.5
–0.5
–100
CARD
Max
100
100
250
100
16
Max
4.6
15
288
4
8
V
V
150
of each card connected to this line:
CC
CC
+ 0.5 V
+ 0.5 V
Unit
kΩ
kΩ
pF
pF
nH
Unit
V
mW
kV
kV
kV
mA
mA
Remark
Human body model
according to ANSI/EOS
ESD-S5.1-1998
Human body model
according to IEC61000-4-
2
• max (V
• max (V
short cut protected
short cut protected
Remark
to prevent bus floating
to prevent bus floating
f
30 cards
f
10 cards
f
PP
PP
PP
≤ 5 MHz,
≤ 20 MHz,
≤ 20 MHz
CC
CC
)
)