Datasheet

PIC18F2455/2550/4455/4550
DS39632E-page 384 © 2009 Microchip Technology Inc.
FIGURE 28-3: HIGH/LOW-VOLTAGE DETECT CHARACTERISTICS
TABLE 28-6: HIGH/LOW-VOLTAGE DETECT CHARACTERISTICS
VHLVD
HLVDIF
V
DD
(HLVDIF set by hardware)
(HLVDIF can be
cleared in software)
VHLVD
For VDIRMAG = 1:
For VDIRMAG = 0:
V
DD
Standard Operating Conditions (unless otherwise stated)
Operating temperature -40°C ≤ T
A ≤ +85°C for industrial
Param
No.
Symbol Characteristic Min Typ Max Units Conditions
D420 HLVD Voltage on V
DD
Transition High-to-Low
HLVDL<3:0> = 0000 2.06 2.17 2.28 V
HLVDL<3:0> = 0001 2.12 2.23 2.34 V
HLVDL<3:0> = 0010 2.24 2.36 2.48 V
HLVDL<3:0> = 0011 2.32 2.44 2.56 V
HLVDL<3:0> = 0100 2.47 2.60 2.73 V
HLVDL<3:0> = 0101 2.65 2.79 2.93 V
HLVDL<3:0> = 0110 2.74 2.89 3.04 V
HLVDL<3:0> = 0111 2.96 3.12 3.28 V
HLVDL<3:0> = 1000 3.22 3.39 3.56 V
HLVDL<3:0> = 1001 3.37 3.55 3.73 V
HLVDL<3:0> = 1010 3.52 3.71 3.90 V
HLVDL<3:0> = 1011 3.70 3.90 4.10 V
HLVDL<3:0> = 1100 3.90 4.11 4.32 V
HLVDL<3:0> = 1101 4.11 4.33 4.55 V
HLVDL<3:0> = 1110 4.36 4.59 4.82 V
HLVDL<3:0> = 1111 1.14 1.20 1.26 V Voltage at HLVDIN
input pin compared to
Internal Voltage
Reference