ST72651AR6 STMicroelectronics, ST72651AR6 Datasheet - Page 12

• Manufacturer Part Number: ST72651AR6
• Description: LOW-POWER, FULL-SPEED USB 8-BIT MCU WITH 32K FLASH, 5K RAM, FLASH CARD I/F, TIMER, PWM, ADC, I2C, SPI
• Manufacturer: STMicroelectronics

Specifications of ST72651AR6

• Dual Supply Management: analog voltage detector on the USB power line to enable smart power switching from USB power to battery (on E suffix devices).
• Programmable Internal Voltage Regulator For Memory Cards (2.8v To 3.5v) Supplying: Flash Card I/O lines (voltage shifting)
• 5 Usb Endpoints: 1 control endpoint
• Dtc (data Transfer Coprocessor): Universal Serial/Parallel communications interface, with software plug-ins for current and future protocol standards

ST72651AR6
Figure 6. Multimedia Card Or Secure Digital Card Writer Application Example
(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
12/161
1
USB Port
ST72F65 pin
ST7 / DTC
GND
5V
DP
DM
100nF
USBV
=4.0-5.5V
(1)
1.5KΩ
MultiMedia Card Pin
DD
4.7μF
USB
VCC
USB
GND
DP
DM
USBVDD
100nF
PE7 PE6
USB
CLK DAT CMD
OR SD CARDS
MULTIMEDIA
DTC
UP TO 5
PE5
V
DD
Doc ID 7215 Rev 4
level translator
REGULATOR
CMD
MANAGEMENT
used as a normal I/O by configuring it as such by the op-
tion byte.
DTC
PE5
POWER
V
(2)
DD
V
DDF
100nF
DAT
DTC
PE6
LOGIC
I/O
FLASH
VPP
CLK
DTC
PE7
12V for
Flash prog.
(connect to
GND if
not used)
LED1
LED2