ST72321AR6-Auto STMicroelectronics, ST72321AR6-Auto Datasheet - Page 209

• Manufacturer Part Number: ST72321AR6-Auto
• Description: 8-bit MCU for automotive with 32 Kbyte Flash, 10-bit ADC, timers, SPI, SCI and I2C interfaces
• Manufacturer: STMicroelectronics

Specifications of ST72321AR6-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
Figure 91. RESET pin protection when LVD is disabled
Note:
19.9.2
Required
EXTERNAL
CIRCUIT
RESET
USER
The reset network protects the device against parasitic resets.
The output of the external reset circuit must have an open-drain output to drive the ST7
reset pad. Otherwise the device can be damaged when the ST7 generates an internal reset
(LVD or watchdog).
Whether the reset source is internal or external, the user must ensure that the level on the
RESET pin can go below the V
Otherwise the reset will not be taken into account internally.
Because the reset circuit is designed to allow the internal RESET to be output in the RESET
pin, the user must ensure that the current sunk on the RESET pin is less than the absolute
maximum value specified for I
ICCSEL/V
Subject to general operating conditions for V
Table 129. ICCSEL/V
1. Data based on design simulation and/or technology characteristics, not tested in production.
Symbol
V
V
I
IH
L
IL
0.01µF
PP
Input low level voltage
Input high level voltage
Input leakage current
pin
Parameter
PP
pin characteristics
INJ(RESET)
Doc ID 13829 Rev 1
IL
(1)
maximum level specified in
(1)
V
DD
R
ON
in
Filter
Section 19.2.2 on page
Flash versions
ROM versions
Flash versions
ROM versions
DD
Conditions
, f
V
IN
CPU
= V
GENERATOR
, and T
SS
PULSE
A
Section 19.9.1 on page
unless otherwise specified.
0.7xV
V
DD
Min
V
V
Electrical characteristics
SS
SS
-0.1
187.
DD
0.3xV
INTERNAL
RESET
Max
12.6
V
0.2
±1
WATCHDOG
DD
DD
ST72XXX
209/243
207.
Unit
µA
V