FM3 MB9B500 Series - Microcontrollers - Fujitsu

MB9B500 Series
Low voltage detection characteristics
1. Low voltage detection reset
Parameter Symbol Conditions
Min
Value
Typ Max
Unit
(Ta = - 40C to + 85C)
Remarks
Detected voltage VDL - 2.20 2.40 2.60 V When voltage drops
Released voltage VDH - 2.30 2.50 2.70 V When voltage rises
LVD stabilization
wait time
TLVDW - - -
* : tCYCP indicates the peripheral clock cycle time.
4500 ×
tcycp *
μs MB9BF500
2. Interrupt of low voltage detection
Parameter Symbol Conditions
Min
Value
Typ Max
Unit
(Ta = - 40C to + 85C)
Remarks
Detected voltage
Released voltage
VDL
VDH
SVHI = 0000
2.58
2.67
2.8
2.9
3.02
3.13
V
V
When voltage drops
When voltage rises
Detected voltage
Released voltage
VDL
VDH
SVHI = 0001
2.76
2.85
3.0
3.1
3.24
3.34
V
V
When voltage drops
When voltage rises
Detected voltage
Released voltage
VDL
VDH
SVHI = 0010
2.94
3.04
3.2
3.3
3.45
3.56
V
V
When voltage drops
When voltage rises
Detected voltage
Released voltage
VDL
VDH
SVHI = 0011
3.31
3.40
3.6
3.7
3.88
3.99
V
V
When voltage drops
When voltage rises
Detected voltage
Released voltage
VDL
VDH
SVHI = 0100
3.40
3.50
3.7
3.8
3.99
4.10
V
V
When voltage drops
When voltage rises
Detected voltage
Released voltage
VDL
VDH
SVHI = 0111
3.68
3.77
4.0
4.1
4.32
4.42
V
V
When voltage drops
When voltage rises
Detected voltage
Released voltage
VDL
VDH
SVHI = 1000
3.77
3.86
4.1
4.2
4.42
4.53
V
V
When voltage drops
When voltage rises
Detected voltage
Released voltage
VDL
VDH
SVHI = 1001
3.86
3.96
4.2
4.3
4.53
4.64
V
V
When voltage drops
When voltage rises
LVD stabilization
wait time
TLVDW - - -
4500 ×
tcycp *
2040 ×
tcycp *
μs
MB9BF500
MB9BF504/505/506
* : tCYCP indicates the peripheral clock cycle time.
Voltage
VDL
Vcc
108 DS706-00010-1v0-E
dt
dV
VDH
Time