PIC18F2420/2520/4420/4520
FIGURE 26-4:
HIGH/LOW-VOLTAGE DETECT CHARACTERISTICS
VDD
(HLVDIF can be
cleared in software)
VLVD
(HLVDIF set by hardware)
HLVDIF(1)
Note 1: VDIRMAG = 0.
TABLE 26-4: HIGH/LOW-VOLTAGE DETECT CHARACTERISTICS
Standard Operating Conditions (unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for industrial
Param
No.
Sym
Characteristic
Min
Typ
Max Units
Conditions
D420
HLVD Voltage on VDD HLVDL<3:0> = 0000 2.06
2.17
2.23
2.36
2.44
2.60
2.79
2.89
3.12
3.39
3.55
3.71
3.90
4.11
4.33
4.59
2.28
2.34
2.48
2.56
2.73
2.93
3.04
3.28
3.56
3.73
3.90
4.10
4.32
4.55
4.82
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
Transition High-to-Low
HLVDL<3:0> = 0001 2.12
HLVDL<3:0> = 0010 2.24
HLVDL<3:0> = 0011 2.32
HLVDL<3:0> = 0100 2.47
HLVDL<3:0> = 0101 2.65
HLVDL<3:0> = 0110 2.74
HLVDL<3:0> = 0111 2.96
HLVDL<3:0> = 1000 3.22
HLVDL<3:0> = 1001 3.37
HLVDL<3:0> = 1010 3.52
HLVDL<3:0> = 1011 3.70
HLVDL<3:0> = 1100 3.90
HLVDL<3:0> = 1101 4.11
HLVDL<3:0> = 1110 4.36
© 2008 Microchip Technology Inc.
DS39631E-page 339
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