LC87F1M16A Datasheet, PDF (24/32 Pages) Sanyo Semicon Device – 8-bit 1-chip Microcontroller with Full-Speed USB

LC87F1M16A
Power-on Reset (POR) Characteristics at Ta = -40°C to +85°C, VSS1 = VSS2 = VSS3 = 0V
Parameter
Symbol
Conditions
POR release voltage
PORRL
Select from option
(Note 7-1)
Option selected
voltage
2.57V
2.87V
min
2.45
2.75
Specification
typ
max
unit
2.57
2.69
2.87
2.99
3.86V
4.35V
3.73
3.86
3.99
V
4.21
4.35
4.49
Detection voltage
unknown state
POUKS
See Fig.11
(Note 7-2)
0.7
0.95
Power supply rise time PORIS
Power supply rise time from 0V
to 1.6V
100
ms
Note 7-1: The POR release level can be selected out of 4 levels only when the LVD reset function is disabled.
Note 7-2: POR is in unknown state before transistor start operation.
Low Voltage Detection Reset (LVD) Characteristics at Ta = -40°C to +85°C, VSS1 = VSS2 = VSS3 = 0V
Parameter
Symbol
Conditions
LVD reset voltage
(Note 8-2)
LVDET
LVD hysteresis width LVHYS
Select from option
See Fig.12
(Note 8-1)
(Note 8-3)
Option selected
voltage
2.81V
3.79V
4.28V
2.81V
min
2.71
3.69
4.18
Specification
typ
max
unit
2.81
2.91
3.79
3.89
V
4.28
4.38
55
3.79V
60
mV
4.28V
60
Detection voltage
unknown state
LVUKS
See Fig.12
(Note 8-4)
0.7
0.95
V
Low voltage detection TLVDW
LVDET-0.5V
minimum width
See Fig.13
0.2
ms
(Reply sensitivity).
Note 8-1: The LVD reset level can be selected out of 3 levels only when the LVD reset function is enabled.
Note 8-2: LVD reset voltage specification values do not include hysteresis voltage.
Note 8-3: LVD reset voltage may exceed its specification values when port output state changes and and/or when a
large current flows through port.
Note 8-4: LVD is in unknown state before transistor start operation.
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