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ST72F321J7 Datasheet(PDF) 9 Page - STMicroelectronics

No. de pieza ST72F321J7
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
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PIN DESCRIPTION (Cont’d)
For external pin connection guidelines, refer to See “ELECTRICAL CHARACTERISTICS” on page 134.
Legend / Abbreviations for Table 1:
Type:
I = input, O = output, S = supply
Input level:
A = Dedicated analog input
In/Output level: C = CMOS 0.3VDD/0.7VDD
CT= CMOS 0.3VDD/0.7VDD with input trigger
Output level:
HS = 20mA high sink (on N-buffer only)
Port and control configuration:
– Input:
float = floating, wpu = weak pull-up, int = interrupt 1), ana = analog
– Output:
OD = open drain 2), PP = push-pull
Refer to “I/O PORTS” on page 44 for more details on the software configuration of the I/O ports.
The RESET configuration of each pin is shown in bold. This configuration is valid as long as the device is
in reset state.
Table 1. Device Pin Description
Pin
Pin Name
Level
Port
Main
function
(after
reset)
Alternate Function
Input
Output
6
PB4 (HS)/ARTCLK
I/O CT HS
X
ei3
X
X
Port B4
PWM-ART External Clock
7
PD0/AIN0
I/O CT
X
X
X
X
X
Port D0
ADC Analog Input 0
8
PD1/AIN1
I/O CT
X
X
X
X
X
Port D1
ADC Analog Input 1
9
PD2/AIN2
I/O CT
X
X
X
X
X
Port D2
ADC Analog Input 2
10
PD3/AIN3
I/O CT
X
X
X
X
X
Port D3
ADC Analog Input 3
11
PD4/AIN4
I/O CT
X
X
X
X
X
Port D4
ADC Analog Input 4
12
PD5/AIN5
I/O CT
X
X
X
X
X
Port D5
ADC Analog Input 5
13
VAREF
S
Analog Reference Voltage for ADC
14
VSSA
S
Analog Ground Voltage
15
PF0/MCO/AIN8
I/O CT
X
ei1
X
X
X
Port F0
Main clock out
(fOSC/2)
ADC Analog
Input 8
16
PF1 (HS)/BEEP
I/O CT HS
X
ei1
X
X
Port F1
Beep signal output
17
PF2 (HS)
I/O CT HS
X
ei1
X
X
Port F2
18
PF4/OCMP1_A/
AIN10
I/O CT
X
X
X
X
X
Port F4
Timer A Output
Compare 1
ADC Analog
Input 10
19
PF6 (HS)/ICAP1_A
I/O CT HS
X
X
X
X
Port F6
Timer A Input Capture 1
20
PF7 (HS)/
EXTCLK_A
I/O CT HS
X
X
X
X
Port F7
Timer A External Clock Source
21
VDD_0
S
Digital Main Supply Voltage
22
VSS_0
S
Digital Ground Voltage
23
PC0/OCMP2_B/
AIN12
I/O CT
X
X
X
X
X
Port C0
Timer B Output
Compare 2
ADC Analog
Input 12
24
PC1/OCMP1_B/
AIN13
I/O CT
X
X
X
X
X
Port C1
Timer B Output
Compare 1
ADC Analog
Input 13
25
PC2 (HS)/ICAP2_B
I/O CT HS
X
X
X
X
Port C2
Timer B Input Capture 2
26
PC3 (HS)/ICAP1_B
I/O CT HS
X
X
X
X
Port C3
Timer B Input Capture 1


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