ST72C334J4TAE STMicroelectronics, ST72C334J4TAE Datasheet - Page 124

• Manufacturer Part Number: ST72C334J4TAE
• Description: 8-bit MCU for automotive with single voltage Flash/ROM memory, ADC, 16-bit timers, SPI, SCI interfaces
• Manufacturer: STMicroelectronics

ST72334xx-Auto, ST72314xx-Auto, ST72124Jx-Auto
15.7 EMC CHARACTERISTICS
Susceptibility tests are performed on a sample ba-
sis during product characterization.
15.7.1 Functional EMS
(Electromagnetic Susceptibility)
Based on a simple running application on the
product (toggling two LEDs through I/O ports), the
product is stressed by two electromagnetic events
until a failure occurs (indicated by the LEDs).
Figure 73. EMC Recommended star network power supply connection
Notes:
1. Data based on characterization results, not tested in production.
2. The suggested 10µF and 0.1µF decoupling capacitors on the power supply lines are proposed as a good price vs. EMC
performance trade-off. They have to be put as close as possible to the device power supply pins. Other EMC recommen-
dations are given in other sections (I/Os, RESET, OSCx pin characteristics).
124/150
Symbol
V
V
FESD
FFTB
Voltage limits to be applied on any I/O pin
to induce a functional disturbance
Fast transient voltage burst limits to be ap-
plied through 100pF on V
to induce a functional disturbance
POWER
SUPPLY
SOURCE
V
Parameter
DD
DD
and V
DD
ST7
DIGITAL NOISE
FILTERING
pins
V
conforms to IEC 1000-4-2
V
conforms to IEC 1000-4-4
DD
DD
=5V, T
=5V, T
EXTERNAL
NOISE
FILTERING
■
■
A device reset allows normal operations to be re-
sumed.
ESD: Electrostatic Discharge (positive and
negative) is applied on all pins of the device until
a functional disturbance occurs. This test
conforms with the IEC 1000-4-2 standard.
FTB: A Burst of Fast Transient voltage (positive
and negative) is applied to V
a 100pF capacitor, until a functional disturbance
occurs. This test conforms with the IEC 1000-4-
4 standard.
10µF
Conditions
A
A
=+25°C, f
=+25°C, f
0.1µF
0.1µF
OSC
OSC
=8MHz
=8MHz
V
V
V
V
DD
SS
SSA
DDA
2)
Neg
ST72XXX
-1
-4
DD
1)
and V
Pos
1
4
1)
SS
through
Unit
kV