st62t25cn6 STMicroelectronics, st62t25cn6 Datasheet - Page 79

• Manufacturer Part Number: st62t25cn6
• Description: 8-bit Mcus With A/d Converter, Two Timers, Oscillator Safeguard & Safe Reset
• Manufacturer: STMicroelectronics

EMC CHARACTERISTICS (Cont’d)
11.7.2 Absolute Electrical Sensitivity
Based on three different tests (ESD, LU and DLU)
using specific measurement methods, the product
is stressed in order to determine its performance in
terms of electrical sensitivity. For more details, re-
fer to the AN1181 application note.
11.7.2.1 Electro-Static Discharge (ESD)
Electro-Static Discharges (3 positive then 3 nega-
tive pulses separated by 1 second) are applied to
the pins of each sample according to each pin
combination. The sample size depends of the
number of supply pins of the device (3 parts*(n+1)
supply pin). Two models are usually simulated:
Human Body Model and Machine Model. This test
conforms to the JESD22-A114A/A115A standard.
See
Human Body Model Test Sequence
– C
Absolute Maximum Ratings
Notes:
1. Data based on characterization results, not tested in production.
Figure 57. Typical Equivalent ESD Circuits
ator.
HIGH VOLTAGE
V
V
GENERATOR
Symbol
ESD(HBM)
ESD(MM)
L
Figure 57
is loaded through S1 by the HV pulse gener-
PULSE
Electro-static discharge voltage
(Human Body Model)
Electro-static discharge voltage
(Machine Model)
and the following test sequences.
S1
C
L
100pF
HUMAN BODY MODEL
Ratings
R=1500
ST6
T
T
A
A
S2
+25°C
+25°C
– S1 switches position from generator to R.
– A discharge from C
– S2 must be closed 10 to 100ms after the pulse
Machine Model Test Sequence
– C
– S1 switches position from generator to ST6.
– A discharge from C
– S2 must be closed 10 to 100ms after the pulse
– R (machine resistance), in series with S2, en-
to the ST6 occurs.
delivery period to ensure the ST6 is not left in
charge state. S2 must be opened at least 10ms
prior to the delivery of the next pulse.
ator.
delivery period to ensure the ST6 is not left in
charge state. S2 must be opened at least 10ms
prior to the delivery of the next pulse.
sures a slow discharge of the ST6.
HIGH VOLTAGE
GENERATOR
L
is loaded through S1 by the HV pulse gener-
Conditions
PULSE
L
S1
L
through R (body resistance)
to the ST6 occurs.
C
L
200pF
Maximum value
ST6215C/ST6225C
MACHINE MODEL
ST6
2000
200
1)
79/105
Unit
V
S2
1