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参数资料
| 型号： | ST72521M9T3/XXX |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, MROM, MICROCONTROLLER, PQFP80 |
| 封装： | 14 X 14 MM, TQFP-80 |
| 文件页数： | 9/11页 |
| 文件大小： | 95K |
| 代理商： | ST72521M9T3/XXX |
ST72521M/R/AR
7/11
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
54
42
PC7/SS/AIN15
I/O CT
X
X
Port C7
SPI Slave
Select (active
low)
ADC Analog
Input 15
55
43
PA0
I/O CT
X
ei0
X
Port A0
56
44
PA1
I/O CT
X
ei0
X
Port A1
57
45
PA2
I/O CT
X
ei0
X
Port A2
58
46
PA3 (HS)
I/O CT HS
X
ei0
X
Port A3
59
47
VDD_1
S
Digital Main Supply Voltage
60
48
VSS_1
S
Digital Ground Voltage
61
49
PA4 (HS)
I/O CT HS
X
X
Port A4
62
50
PA5 (HS)
I/O CT HS
X
X
Port A5
63
51
PA6 (HS)/SDAI
I/O CT HS
X
T
Port A6
I2C Data 1)
64
52
PA7 (HS)/SCLI
I/O CT HS
X
T
Port A7
I2C Clock 1)
65
53
VPP/ ICCSEL
I
Must be tied low. In flash programming
mode, this pin acts as the programming
voltage input VPP. High voltage must
not be applied to ROM devices
66
54
RESET
I/O CT
Top priority non maskable interrupt.
67
55
EVD
External voltage detector
68
56
TLI
I
CT
X
X
Top level interrupt input pin
69
-
PH4
I/O TT
X
X
Port H4
70
-
PH5
I/O TT
X
X
Port H5
71
-
PH6
I/O TT
X
X
Port H6
72
-
PH7
I/O TT
X
X
Port H7
73
57
VSS_2
S
Digital Ground Voltage
74
58
OSC23)
I/O
Resonator oscillator inverter output or
capacitor input for RC oscillator
75
59
OSC13)
I
External clock input or Resonator oscil-
lator inverter input or resistor input for
RC oscillator
76
60
VDD_2
S
Digital Main Supply Voltage
77
61
PE0/TDO
I/O CT
X
X
Port E0
SCI Transmit Data Out
78
62
PE1/RDI
I/O CT
X
X
Port E1
SCI Receive Data In
79
63
PE2/CANTX
I/O CT
X
Port E2
CAN Transmit Data Output
80
64
PE3/CANRX
I/O CT
X
X
Port E3
CAN Receive Data Input
Pin n
°
Pin Name
Type
Level
Port
Main
function
(after
reset)
Alternate function
TQFP80
TQFP64
Input
Output
Input
Outpu t
float
wpu
int
ana
OD
PP
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