LC88FC2H0A Datasheet, PDF (40/48 Pages) ON Semiconductor – 16-bit Microcontroller

LC88FC2H0A
■ Power-on Reset (POR) Characteristics at Ta = +40 to +85C, VSS1 = VSS2 = VSS3 = VSS4 = 0V
Specification
Parameter
Symbol Pin/Remarks
Conditions
Option selected
voltage
min
typ
max unit
Por release
voltage
PORRL
Detction voltage POUKS
unknown state
 Select from option.
(Note 8-1)
 See Fig10.
(Note 8-2)
2.57V
2.87V
2.47 2.57 2.72
2.77 2.87 3.02
V
0.7
0.95
Power supply
rise time
PORIS
 Power supply rise time
from 0V to 1.6V.
100
mS
Note8-1 : The POR release level can be selected out of 2 levels only when the LVD reset function is disabled.
Note8-2 : POR is in an unknown state before transistors start operation.
■ Low Voltage Detection Reset (LVD) Characteristics
at Ta = +40 to +85C, VSS1 = VSS2 = VSS3 = VSS4 = 0V
Specification
Parameter
Symbol Pin/Remarks
Conditions
Option selected
voltage
min
typ
max unit
LVD reset
LVDET
 Select from option.
voltage
(Note 9-2)
(Note 9-2)
 See Fig. 11.
2.81V
2.71 2.81 2.96
V
LVD hysteresis LVHYS
width
2.81V
60
mV
Detection
LVUKS
 See Fig. 11.
voltage unknown
(Note 9-3)
0.7
0.95
V
state
Low voltage
TLVDW
 LVDET-0.5V
detection
 See Fig. 12.
minimum width
0.2
mS
(Replay
sensitivity)
Note9-1 : LVD reset voltage specification values do not include hysteresis voltage.
Note9-2 : LVD reset voltage may exceed its specification values when port output state changes and/or when a
large current flows through port.
Note9-3 : LVD is in an unknown state before transistors start operation.
No.A2183-40/48