Cypress S6J331EJSESE20000, Manual

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Document Number: 002-10635 Rev. *I Page
227 of 325
S6J3310/20/30/40 Series
9.1.4.12
Low Voltage Detection (Internal Voltage)
Low-voltage detection (internal low-voltage detection for LVDL0)
(T
A
: Recommended operating conditions, V
SS
= AV
SS
= 0.0 V)
Parameter Symbol Pin Name Conditions
Value
Unit Remarks
Min Typ Max
Supply voltage
range
V
RDP5
- - 1.05 - 1.21 V
Detection voltage V
RDL
- *1 *2 0.75 0.85 0.95 V
When
power-
supply
voltage falls
Hysteresis width V
RHYS
- - - 75 - mV
When
power-
supply
voltage rises
Low-voltage
detection time
TRd - - - - 30 μs *3
*1: If the power fluctuation time is less than the low-voltage detection time (TRd) and has passed the detection voltage range, the
detection may occur or be canceled after the supply voltage has passed the detection voltage range.
*2: This LVD cannot be used to reliably generate a reset before voltage dips below minimum guaranteed MCU operation voltage,
as these detection levels are below the minimum guaranteed MCU operation voltage (1.05 V).
*3: After the brown-out event where the voltage level dips below the detection threshold for less than this time, the detection may
occur or be canceled.
Notes:
−
The detection/release threshold values of LVDL0 channel is potentially below supply range defined in 9.1.2 Recommended
Operating Condition .
Low-voltage detection (internal low-voltage detection for LVDL1)
(T
A
: Recommended operating conditions, V
SS
= AV
SS
= 0.0 V)
Parameter Symbol Pin Name Conditions
Value
Unit Remarks
Min Typ Max
Supply voltage
range
V
RDP5
- - 1.05 - 1.21 V
Detection voltage
(before trimming)
V
RDLBT
-
*1 *2
0.775 0.875 0.975 V
When power-
supply
voltage falls
Detection voltage
(after trimming)
V
RDLAT
-
*1 *2
0.844 0.875 0.906 V
When power-
supply
voltage falls
Typ ±3.5 %
Hysteresis width V
RHYS
- - - 75 - mV
When power-
supply
voltage rises
Low-voltage
detection time
TRd - - - - 30 μs *3
*1: If the power fluctuation time is less than the low-voltage detection time (TRd) and has passed the detection voltage range, the
detection may occur or be canceled after the supply voltage has passed the detection voltage range.
*2: This LVD cannot be used to reliably generate a reset before voltage dips below minimum guaranteed MCU operation voltage,
as these detection levels are below the minimum guaranteed MCU operation voltage (1.05 V).
*3: After the brown-out event where the voltage level dips below the detection threshold for less than this time, the detection may
occur or be canceled.
Notes:
−
The detection/release threshold values of LVDL1 channel is potentially below supply range defined in 9.1.2 Recommended
Operating Condition .