LC88FC3K0A Datasheet, PDF (41/48 Pages) ON Semiconductor – 16-bit Microcontroller

LC88FC3K0A
■ Power-on Reset (POR) Characteristics at Ta=40 to +85C, VSS1=VSS2=VSS3=VSS4=0V
Parameter
Symbol Pin/Remarks
Conditions
Por release
voltage
PORRL
Detction voltage POUKS
unknown state
 Select from option.
(Note 8-1)
 See Fig 10.
(Note 8-2)
Specification
Option selected
voltage
min
typ
max unit
2.57V
2.47 2.57 2.72
2.87V
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
Parameter
Symbol Pin/Remarks
Conditions
LVD reset
voltage
(Note 9-1)
LVDET
LVD hysteresis LVHYS
width
 Select from option.
(Note 9-2)
 See Fig 11.
Specification
Option selected
voltage
min
typ
max unit
2.81V
2.71 2.81 2.96
V
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.
www.onsemi.com
41