ST72321AR9-Auto STMicroelectronics, ST72321AR9-Auto Datasheet - Page 25

• Manufacturer Part Number: ST72321AR9-Auto
• Description: 8-bit MCU for automotive with 60 Kbyte Flash, 10-bit ADC, timers, SPI, SCI and I2C interfaces
• Manufacturer: STMicroelectronics

Specifications of ST72321AR9-Auto

• Hdflash Endurance: 100 cycles, data retention 20 years
• Clock Sources: crystal/ceramic resonator oscillators, internal RC oscillator and bypass for external clock
• 4 Power Saving Modes: Halt, Active Halt, Wait and Slow

ST72321xx-Auto
Table 3.
1. It is mandatory to connect all available V
2. OSC1 and OSC2 pins connect a crystal/ceramic resonator or an external source to the on-chip oscillator; see
63
64
Pin No.
Supply, reset and clock management
-
-
PE2
(Flash device)
PE2
(ROM device)
PE3
Device pin description (continued)
Legend / Abbreviations for
Type:
Input level:
In/Output level:
Output level:
Port and control configuration:
●
●
a. In the interrupt input column, “eiX” defines the associated external interrupt vector. If the weak pull-up column
b. In the open-drain output column, “T” defines a true open-drain I/O (P-Buffer and protection diode to V
Pin name
(wpu) is merged with the interrupt column (int), then the I/O configuration is pull-up interrupt input, otherwise
the configuration is floating interrupt input.
implemented). See
for more details.
Input:
Output:
I/O C
I/O C
Section 9: I/O ports on page 70
and
DD
I = input
O = output
S = supply
A = dedicated analog input
C = CMOS 0.3V
C
HS = 20mA high sink (on N-buffer only)
float = floating
wpu = weak pull-up
int = interrupt
ana = analog
OD = open-drain
PP = push-pull
Level
T
T
Section 19.5: Clock and timing characteristics on page 195
T
and V
= CMOS 0.3V
Table
AREF
Doc ID 13829 Rev 1
X
X
3:
pins to the supply voltage and all V
X
X
(a)
Input
DD
(b)
DD
/0.7V
Port
/0.7V
and
DD
Section 19.8: I/O port pin characteristics on page 203
DD
X
X
Output
with input trigger
Package pinout and pin description
X
X
function
Port E2
Caution: In Flash devices this port
is always input with weak pull-up.
Port E2
Caution: In ROM devices, no
weak pull-up present on this port.
In LQFP44 this pin is not
connected to an internal pull-up
like other unbonded pins. It is
recommended to configure it as
output push-pull to avoid added
current consumption.
Port E3
reset)
(after
Main
SS
and V
SSA
Alternate function
for more details.
pins to ground.
Section 6:
DD
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are not