ST72F63 STMICROELECTRONICS [STMicroelectronics], ST72F63 Datasheet - Page 6

• Manufacturer Part Number: ST72F63
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

ST7263B
PIN DESCRIPTION (Cont’d)
RESET (see Note 1): Bidirectional. This active low
signal forces the initialization of the MCU. This
event is the top priority non maskable interrupt.
This pin is switched low when the Watchdog is trig-
gered or the V
ternal peripherals.
OSCIN/OSCOUT: Input/Output Oscillator pin.
These pins connect a parallel-resonant crystal, or
an external source, to the on-chip oscillator.
V
Ground voltages.
V
Ground voltages for analog peripherals.
Table 2. Device Pin Description
6/132
10 11 PB6/AIN6/IT7
11 12 V
12 13 PB5/AIN5/IT6
13 14 PB4/AIN4/IT5
14 15 PB3/AIN3
15 16 PB2/AIN2
16 17 PB1/AIN1
17 18 PB0/AIN0
18 19 PA7/OCMP2/IT4
19 20 PA6/OCMP1/IT3
20 21 PA5/ICAP2/IT2
21 22 PA4/ICAP1/IT1
Pin n°
--
1
2
3
4
5
6
7
8
9 10 PB7/AIN7/IT8
DD
DDA
/V
1
2
3
4
5
6
7
8
9
/V
SS
SSA
V
OSCOUT
OSCIN
V
PC2/USBOE
PC1/TDO
PC0/RDI
RESET
NC
DD
SS
PP
(see Note 2): Main Power Supply and
/TEST
(see Note 2): Power Supply and
Pin Name
DD
is low. It can be used to reset ex-
I/O
I/O
I/O
I/O
I/O C
I/O C
I/O C
I/O C
I/O C
I/O C
I/O C
I/O C
I/O
I/O
I/O
I/O
O
S
S
--
S
I
T
T
T
T
T
T
T
T
Level
C
C
C
C
C
C
C
10mA X
10mA X
10mA X
10mA X
10mA X
10mA X
10mA X
10mA X
T
T
T
T
T
T
T
Port / Control
X
X
X
X
X
X
X
X
Input
X
X
X
X
X
X
X
X
Alternate Functions: Several pins of the I/O ports
assume software programmable alternate func-
tions as shown in the pin description.
Note 1: Adding two 100 nF decoupling capacitors
on the Reset pin (respectively connected to
and
magnetic susceptibility performance.
Note 2: To enhance the reliability of operation, it is
recommended that
gether on the application board. This also applies
to
X
X
X
X
X
X
X
X
V
Output
SSA
X
V
SS
and
) will significantly improve product electro-
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Power supply voltage (4V - 5.5V)
Oscillator output
Oscillator input
Digital ground
Port C2
Port C1
Port C0
Reset
Not connected
Port B7
Port B6
Programming supply
Port B5
Port B4
Port B3
Port B2
Port B1
Port B0
Port A7
Port A6
Port A5
Port A4
(after reset)
V
Function
SS
Main
.
V
DDA
USB Output Enable
SCI Transmit Data Output*
SCI Receive Data Input*
ADC analog input 7
ADC analog input 6
ADC analog input 5
ADC analog input 4
ADC analog input 3
ADC analog input 2
ADC analog input 1
ADC Analog Input 0
Timer Output Compare 2
Timer Output Compare 1
Timer Input Capture 2
Timer Input Capture 1
and
Alternate Function
V
DD
be connected to-
V
DD