参数资料
型号: ST72F321J9T5
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP44
封装: 10 X 10 MM, PLASTIC, TQFP-44
文件页数: 2/176页
文件大小: 1112K
代理商: ST72F321J9T5
ST72321J
10/176
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 42. 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
the on-chip oscillator; see Section 1 INTRODUCTION and Section 12.5 CLOCK AND TIMING CHARAC-
TERISTICS for more details.
27
PC4/MISO/ICCDA-
TA
I/O CT
X
X
Port C4
SPI Master In /
Slave Out Data
ICC Data Input
28
PC5/MOSI/AIN14
I/O CT
X
X
Port C5
SPI Master Out /
Slave In Data
ADC Analog
Input 14
29
PC6/SCK/ICCCLK
I/O CT
X
X
Port C6
SPI Serial Clock
ICC Clock Output
30
PC7/SS/AIN15
I/O CT
X
X
Port C7
SPI Slave Select
(active low)
ADC Analog
Input 15
31
PA3 (HS)
I/O CT HS
X
ei0
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
Port A4
35
PA5 (HS)
I/O CT HS
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
Port E0
SCI Transmit Data Out
1
PE1/RDI
I/O CT
X
X
Port E1
SCI Receive Data In
2
PB0/PWM3
I/O CT
X
ei2
X
Port B0
PWM Output 3
3
PB1/PWM2
I/O CT
X
ei2
X
Port B1
PWM Output 2
4
PB2/PWM1
I/O CT
X
ei2
X
Port B2
PWM Output 1
5
PB3/PWM0
I/O CT
X
ei2
X
Port B3
PWM Output 0
Pin
n
°
Pin Name
Type
Level
Port
Main
functio n
(after
reset)
Alternate Function
Input
Output
Input
Output
float
wpu
int
ana
OD
PP
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