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MB91F525FHDPMC Datasheet(PDF) 179 Page - Cypress Semiconductor

Part # MB91F525FHDPMC
Description  32-bit FR81S Microcontroller
PDF  280 Pages
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Manufacturer  CYPRESS [Cypress Semiconductor]
Direct Link  http://www.cypress.com
Logo CYPRESS - Cypress Semiconductor

MB91F525FHDPMC Datasheet(HTML) 179 Page - Cypress Semiconductor

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Document Number: 002-04662 Rev. *F
Page 179 of 280
MB91520 Series
(7) NMI input timing
(TA: -40 °C to +125 °C, VCC = AVCC = 5.0 V ± 10 %/VCC = AVCC = 3.3 V ± 0.3 V, VSS = AVSS = 0.0 V)
Parameter
Symbol
Pin Name
Conditions
Value
Unit
Remarks
Min
Max
Input pulse width
tNMIL
NMIX
–
4tCPP
–
ns
NMIX input timing
VIH5
NMIX
tNMIL
VIH5
VIL5
VIL5
(8) Low voltage detection (External low-voltage detection)
(TA: -40 °C to +125 °C, VSS = AVSS = 0.0 V)
Parameter
Symbol
Pin
Name
Conditions
Value
Unit
Remarks
Min
Typ
Max
Power supply
voltage range
VDP5
VCC
-
2.7
-
5.5
V
Detection
voltage*3
VDL
*1
-8%
LVD5F
_SEL
[3:0]
+8%
V
LVD5F_SEL[3:0] are
programmable.
Refer to the
hardware manual.
Hysteresis width
VHYS
-
-
0.1
-
V
When power-supply
voltage rises
Low voltage
detection time
Td
-
-
-
30
µs
Power supply
voltage regulation
-
VCC
-
-2
-
2
V/ms
*2
*1: If the fluctuation of the power supply is faster than the low voltage detection time, there is a possibility to generate or release
after the power supply voltage has exceeded the detection voltage range.
*2: Please suppress the change of the power supply within the range of the power-supply voltage regulation to do a low voltage
detection by detecting voltage (VDL).
*3: The initial detection voltage of the external low voltage detection is 2.8 V ± 8 % (2.576 V to 3.024 V).
This LVD setting cannot be used to reliably generate a reset before voltage dips below minimum guaranteed MCU operation
voltage, as this detection level is below the minimum guaranteed MCU operation voltage (2.7 V).
Below the minimum guaranteed MCU operation voltage, MCU operations are not guaranteed with the exception of LVD.



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