
23
4109LS–8051–02/08
AT8xC51SND1C
7.2.6
MMC Controller
7.2.6.1
Schematic
Figure 7-7.
MMC Connection
7.2.6.2
Parameters
Table 22. MMC Components Characteristics
VDD = 2.7 to 3.3 V, TA = -40 to +85°C
7.2.7
In System Programming
7.2.7.1
Schematic
Figure 7-8.
ISP Pull-Down Connection
7.2.7.2
Parameters
Table 23. ISP Pull-Down Characteristics
VDD = 2.7 to 3.3 V, TA = -40 to +85°C
MDAT
MCMD
R
CMD
R
DAT
VDD
Symbol
Parameter
Min
Typ
Max
Unit
R
CMD
MMC/SD Command Line Pull-Up Resistor
1OO
K
R
DAT
MMC/SD Data Line Pull-Up Resistor
10
K
VSS
ISP
RISP
Symbol
Parameter
Min
Typ
Max
Unit
RISP
ISP Pull-Down Resistor
2.2
K