ST72321M6 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
ST72321M6
STMicroelectronics
ST72321M6 Datasheet PDF : 175 Pages
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ST72321M6 ST72321M9
Pin n°
Pin Name
Level
Port
Input
Output
Main
function
(after
reset)
Alternate function
53 PC6/SCK/ICCCLK
54 PC7/SS/AIN15
55 PA0
56 PA1
57 PA2
58 PA3 (HS)
59 VDD_1 2)
60 VSS_1 2)
61 PA4 (HS)
62 PA5 (HS)
63 PA6 (HS)/SDAI
64 PA7 (HS)/SCLI
65 VPP/ ICCSEL
66 RESET
67 EVD
68 TLI
69 PH4
70 PH5
71 PH6
72 PH7
73 VSS_2 2)
74 OSC23)
75 OSC13)
76 VDD_2 2)
77 PE0/TDO
78 PE1/RDI
79 PE2
80 PE3
I/O CT
XX
SPI Serial ICC Clock
Clock
Output
X X Port C6 Caution: Negative current
injection not allowed on this
pin
I/O CT
XX
X
X
X
Port C7
SPI Slave
Select (active
low)
ADC Analog
Input 15
I/O CT
X
I/O CT
X
I/O CT
X
I/O CT HS X
S
ei0
ei0
ei0
ei0
X X Port A0
X X Port A1
X X Port A2
X X Port A3
Digital Main Supply Voltage
S
Digital Ground Voltage
I/O CT HS X X
I/O CT HS X X
I/O CT HS X
I/O CT HS X
I
I/O CT
X X Port A4
X X Port A5
T
Port A6 I2C Data 5)
T
Port A7 I2C Clock 5)
Must be tied low. In Flash programming
mode, this pin acts as the programming
voltage input VPP.
Top priority non maskable interrupt.
External voltage detector
I CT
I/O TT
I/O TT
I/O TT
I/O TT
S
X
X
XX
XX
XX
XX
Top level interrupt input pin
X X Port H4
X X Port H5
X X Port H6
X X Port H7
Digital Ground Voltage
I/O
Resonator oscillator inverter output
I
External clock input or Resonator oscil-
lator inverter input
S
Digital Main Supply Voltage
I/O CT
I/O CT
I/O CT
I/O CT
XX
XX
X
XX
X X Port E0 SCI Transmit Data Out
X X Port E1 SCI Receive Data In
Port E2
X X Port E3
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. It is mandatory to connect all available VDD and VREF pins to the supply voltage and all VSS and VSSA
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