ST72651AR6 STMicroelectronics, ST72651AR6 Datasheet - Page 14

• 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 8. Compact Flash Card Writer Application Example
Table 3. Compact Flash Card Writer Pin Assignment
Notes:
1. This line shows if the ST72F65 pin is controlled by the
ST7 core or by the DTC.
2. These lines are not controlled by the DTC but by the
user software running on the ST7 core. The choice of
14/161
1
Compact Flash
ST72F65 pin
ST7 / DTC
USB Port
Card Pin
GND
5V
DP
DM
100nF
USBV
=4.0-5.5V
1)
1.5KΩ
DD
4.7μF
PB0-7 NC
DTC
D0-7 D8-15
USB
VCC
USB
GND
DP
DM
translator
USBVDD
1
100nF
level
-
VS1, VS2, WAIT,
CS1, INPACK,
USB
BVD1, BVD2
PA
8-BIT MEMORY
5
6
NC
PB
MODE
-
DTC
CF
8
IOWR, REG,
Doc ID 7215 Rev 4
CE2, V
Power
IORD,
V
DDF
[2]
PE
REGULATOR
CC
MANAGEMENT
4.7KΩ
RESET,
ST72F65 pin is at the customer’s discretion. The pins
shown here are given only as an example.
3. As this is a single power supply application, the USBEN
function in not needed. Thus PF4/USBEN pin can be
used as a normal I/O by configuring it as such by the op-
tion byte.
Power DTC
CSEL,
A3-10
GND,
4.7µF
V
POWER
SSF
V
DD
V
100nF
PA0-2
DDF
A0-2
3)
+pull-up
4.7kΩ
PE2
CE1
ST7
LOGIC
I/O
DTC DTC
PA3 PA5
RE WE
FLASH
+pull-up
100kΩ
CD1
PA6
ST7
VPP
(connect to
GND if
not used)
12V for
Flash prog.
LED1
RDY/BSY,
LED2
CD2,
WP
NC
-