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ST72F321J9 Datasheet(PDF) 10 Page - STMicroelectronics

No. de pieza ST72F321J9
Descripción Electrónicos  8-BIT MCU WITH NESTED INTERRUPTS, FLASH, 10-BIT ADC, 5 TIMERS, SPI, SCI, I2C INTERFACE
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST72F321J9 Datasheet(HTML) 10 Page - STMicroelectronics

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Notes:
1. In the interrupt input column, “eiX” defines the associated external interrupt vector. If the weak pull-up
column (wpu) is merged with the interrupt column (int), then the I/O configuration is pull-up interrupt input,
else the configuration is floating interrupt input.
2. In the open drain output column, “T” defines a true open drain I/O (P-Buffer and protection diode to VDD
are not implemented). See See “I/O PORTS” on page 44. and Section 12.8 I/O PORT PIN CHARACTER-
ISTICS for more details.
3. OSC1 and OSC2 pins connect a crystal/ceramic resonator, an RC oscillator, or an external source to
27
PC4/MISO/ICCDA-
TA
I/O CT
X
X
X
X
Port C4
SPI Master In /
Slave Out Data
ICC Data Input
28
PC5/MOSI/AIN14
I/O CT
X
X
X
X
X
Port C5
SPI Master Out /
Slave In Data
ADC Analog
Input 14
29
PC6/SCK/ICCCLK
I/O CT
X
XX
X
Port C6
SPI Serial Clock
ICC Clock Output
Caution: During normal operation, this pin must
be pulled-up, internally or externally, to avoid
entering ICC mode unexpectedly during a reset.
30
PC7/SS/AIN15
I/O CT
X
X
X
X
X
Port C7
SPI Slave Select
(active low)
ADC Analog
Input 15
31
PA3 (HS)
I/O CT HS
X
ei0
X
X
Port A3
32
VDD_1
S
Digital Main Supply Voltage
33
VSS_1
S
Digital Ground Voltage
34
PA4 (HS)
I/O CT HS
X
X
X
X
Port A4
35
PA5 (HS)
I/O CT HS
X
X
X
X
Port A5
36
PA6 (HS)/SDAI/
I/O CT HS
X
T
Port A6
I2C Data 2)
37
PA7 (HS)/SCLI
I/O CT HS
X
T
Port A7
I2C Clock 2)
38
VPP /ICCSEL
I
Must be tied low. In the flash programming
mode, this pin acts as the programming voltage
input VPP. See Section 12.9.2 for more details.
High voltage must not be applied to ROM devic-
es.
39
RESET
I/O CT
Top priority non maskable interrupt.
40
VSS_2
S
Digital Ground Voltage
41
OSC2
O
Resonator oscillator inverter output or capacitor
input for RC oscillator
42
OSC1
I
External clock input or Resonator oscillator in-
verter input or resistor input for RC oscillator
43
VDD_2
S
Digital Main Supply Voltage
44
PE0/TDO
I/O CT
X
X
X
X
Port E0
SCI Transmit Data Out
1
PE1/RDI
I/O CT
X
X
X
X
Port E1
SCI Receive Data In
2
PB0/PWM3
I/O CT
X
ei2
X
X
Port B0
PWM Output 3
3
PB1/PWM2
I/O CT
X
ei2
X
X
Port B1
PWM Output 2
4
PB2/PWM1
I/O CT
X
ei2
X
X
Port B2
PWM Output 1
5
PB3/PWM0
I/O CT
X
ei2
X
X
Port B3
PWM Output 0
Pin
Pin Name
Level
Port
Main
function
(after
reset)
Alternate Function
Input
Output


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