ST72521R9-Auto STMicroelectronics, ST72521R9-Auto Datasheet - Page 27

• Manufacturer Part Number: ST72521R9-Auto
• Description: 8-bit MCU for automotive
• Manufacturer: STMicroelectronics

Specifications of ST72521R9-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

ST72521xx-Auto
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
(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:
Section 9: I/O ports on page 73
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
T
= CMOS 0.3V
Doc ID 17660 Rev 1
(a)
DD
(b)
DD
/0.7V
/0.7V
and
DD
Section 20.8: I/O port pin characteristics on page 236
DD
with input trigger
Package pinout and pin description
DD
27/276
are not