Infineon Technologies CYPRESS Traveo Series Manual page 178

32-bit microcontroller
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Power-on Conditions
9.1.4.5
Parameter
Symbol
Level detection
voltage
Level detection
hysteresis width
Level detection time
Power off time
t
Power ramp rate
dV/dt
Maximum ramp rate
guaranteed to not
|dV/dt|
generate power-on
reset
*1: This specification is at 1V/μs of power ramp rate.
*2: VCC5 must be held below 1.5V for a minimum period of t
*3: Power ramp rate must be 1V/us or less from 1.5V to 2.6V.
Power-on can detect by satisfying power ramp rate when power off time is satisfied.
*4: This specification is specified the power supply fluctuation after power on detection. When VCC5 voltage is between 2.4V and
4.5V, the power supply fluctuation is below 50mV/us, the detection of power-on is suppressed. The power-on does not detect in
any power fluctuation between 4.5V and 5.5V.
Notes:
When using S6J3350, *2 and *3 must be satisfied. When neither *2 nor *3 can be satisfied, assert external reset (RSTX) at
power up and any brownout event.
Power off time, Power ramp rate
t
OFF
VCC
1.5V
1.5V
Maximum ramp rate guaranteed to not generate power-on reset
VCC
|dV/dt|
Document Number: 002-10634 Rev. *J
Pin
Conditions
Name
-
VCC5
-
-
VCC5
-
-
-
-
VCC5
-
OFF
VCC5:
VCC5
1.5V to 2.6V
VCC5:
VCC5
Between 2.4V
and 4.5V
2.6V
dV/dt
5.5V
4.5V
|dV/dt|
2.4V
(T
: Recommended operating conditions, V
A
Value
Min
Typ
2.2
2.4
-
100
-
-
100
-
-
-
-
-
.
OFF
S6J3350 Series
Unit
Remarks
Max
2.6
V
-
mV
40
μs
*1
-
μs
*2
1
V/µs
*3
50
mV/µs
*4
Page 177 of 307
= 0.0 V)
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