ST72321AR9-Auto STMicroelectronics, ST72321AR9-Auto Datasheet - Page 73

• 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 30.
1. When the I/O port is in input configuration and the associated alternate function is enabled as an output, reading the DR
2. When the I/O port is in output configuration and the associated alternate function is enabled as an input, the alternate
register will read the alternate function output status.
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
DD
R
R
V
PU
PU
DD
R
PU
Hardware configuration
Doc ID 13829 Rev 1
PULL-UP
CONDITION
INTERRUPT
CONDITION
ALTERNATE
ALTERNATE
ENABLE
ENABLE
REGISTER
DR
DR REGISTER ACCESS
EXTERNAL INTERRUPT
SOURCE (ei
REGISTER
REGISTER
DR
DR
DR REGISTER ACCESS
DR REGISTER ACCESS
W
R
ALTERNATE
ALTERNATE
x
)
OUTPUT
OUTPUT
R/W
R/W
ALTERNATE INPUT
ANALOG INPUT
DATA BUS
DATA BUS
DATA BUS
I/O ports
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