ST72561J9-Auto STMicroelectronics, ST72561J9-Auto Datasheet - Page 76

• Manufacturer Part Number: ST72561J9-Auto
• Description: 8-bit MCU for automotive
• Manufacturer: STMicroelectronics

Specifications of ST72561J9-Auto

• Hdflash Endurance: 100 cycles, data retention 20 years at 55 °C
• 5 Power Saving Modes: halt, auto wake up from halt, active halt, wait and slow

I/O ports
Caution:
76/324
Table 27.
1. When the I/O port is in input configuration and the associated alternate function is enabled as an output,
2. When the I/O port is in output configuration and the associated alternate function is enabled as an input,
The alternate function must not be activated as long as the pin is configured as input with
interrupt, in order to avoid generating spurious interrupts.
Analog alternate function
When the pin is used as an ADC input, the I/O must be configured as floating input. The
analog multiplexer (controlled by the ADC registers) switches the analog voltage present on
the selected pin to the common analog rail which is connected to the ADC input.
It is recommended not to change the voltage level or loading on any port pin while
conversion is in progress. Furthermore it is recommended not to have clocking pins located
close to a selected analog pin.
reading the DR register will read the alternate function output status.
the alternate function reads the pin status given by the DR register content.
NOT IMPLEMENTED IN
TRUE OPEN DRAIN
I/O PORTS
NOT IMPLEMENTED IN
TRUE OPEN DRAIN
I/O PORTS
NOT IMPLEMENTED IN
TRUE OPEN DRAIN
I/O PORTS
I/O port configurations
PAD
PAD
PAD
V
V
DD
R
V
DD
R
PU
DD
R
PU
PU
Doc ID 12370 Rev 8
PULL-UP
CONDITION
Hardware configuration
INTERRUPT
CONDITION
ALTERNATE
REGISTER
ALTERNATE
ENABLE
ENABLE
DR
DR REGISTER ACCESS
EXTERNAL INTERRUPT
SOURCE (
REGISTER
REGISTER
DR
DR
W
R
DR REGISTER ACCESS
ei
DR REGISTER ACCESS
x
)
ALTERNATE
ALTERNATE
OUTPUT
OUTPUT
ALTERNATE INPUT
ANALOG INPUT
DATA BUS
R/W
R/W
ST72561-Auto
DATA BUS
DATA BUS