ST7265x
Figure 7. Multimedia Card Or Secure Digital Card Writer Application Example
4.7µF
100nF
VDD
USBVDD
=4.0-5.5V
USBVDD
USB Port
5V
100nF
DP
1.5KΩ USB
VCC
DP
DM
GND
DM
USB
GND
USB
POWER
MANAGEMENT
(2)
I/O
LOGIC
DTC
REGULATOR
level translator
PE7 PE6 PE5
VDDF
LED1
FLASH
LED2
VPP
12V for
Flash prog.
(connect to
GND if
not used)
CLK DAT CMD
VDD
UP TO 5
MULTIMEDIA
OR SD CARDS
100nF
MultiMedia Card Pin
ST72F65 pin
ST7 / DTC (1)
(1) This line shows if the ST72F65 pin is controlled by the
ST7 core or by the DTC.
(2) As this is a single power supply application, the US-
BEN function in not needed. Thus PF4/USBEN pin can be
CMD
PE5
DTC
DAT
PE6
DTC
CLK
PE7
DTC
used as a normal I/O by configuring it as such by the op-
tion byte.
14/166
1