ST72651AR6 STMicroelectronics, ST72651AR6 Datasheet - Page 9

• 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

PIN DESCRIPTION (Cont’d)
Legend / Abbreviations:
Type: I = input, O = output, S = supply
V
ply rail, supplied by V
In/Output level: C
input trigger
Output level: HS = High Sink (on N-buffer only)
Table 1. Device Pin Description
Pin
10
11
12
13
14
DDF
1
2
3
4
5
6
7
8
9
USBV
USBDM
USBDP
USBVCC
USBV
V
V
PE5/DTC
PE6/DTC
PE7/DTC
PB0/DTC
PB1/DTC
PB2/DTC
PB3/DTC
powered: I/O powered by the alternate sup-
DDF
SSF
Pin Name
SS
DD
T
= CMOS 0.3V
DDF
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
O
S
S
S
S
and V
X
X
X
X
X
X
X
X
X
CT
CT
CT
CT
C
C
C
SSF
Level
T
T
T
DD
.
HS X
HS X
HS X
/0.7V
X
X
X
X
2)
Input
Port / Control
DD
Doc ID 7215 Rev 4
with
X
Output
X
X
2)
X
X
X
X
X
X
X
Port and control configuration:
– Input:float = floating, wpu = weak pull-up, int = in-
– Output: OD = open drain, T = true open drain, PP
Refer to
on the software configuration of the I/O ports.
The RESET configuration of each pin is shown in
bold.
terrupt
= push-pull, OP = pull-up enabled by option byte.
(after reset)
USB Digital ground
USB bidirectional data (data -)
USB bidirectional data (data +)
USB power supply, output by the on-chip USB 3.3V
linear regulator.
Note: An external decoupling capacitor (typ. 100nF,
min 47nF) must be connected between this pin and
USBV
USB Power supply voltage (4V - 5.5V) also used by
the regulator and PLL
Note: External decoupling capacitors (typ.
4.7µF+100nF, min 2.2µF+100nFmust be connected
between this pin and USBV
Power Line for alternate supply rail. Can be used as
input (with external supply) or output (when using the
on-chip voltage regulator). Note: An external decou-
pling capacitor (min. 20nF) must be connected to this
pin to stabilize the regulator.
Ground Line for alternate supply rail. Can be used as
input (with external supply) or output (when using the
on-chip voltage regulator)
Port E5
Port E6
Port E7
Port B0
Port B1
Port B2
Port B3
Function
Main
“I/O PORTS” on page 45
SS
.
DTC I/O with serial capability
(MMC_CMD)
DTC I/O with serial capability
(MMC_DAT)
DTC I/O with serial capability
(MMC_CLK)
DTC
DTC
DTC
DTC
Alternate Function
SS
.
for more details
ST72651AR6
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