PIC18F2221_1 Datasheet, PDF (351/402 Pages) Microchip Technology – Enhanced Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology

PIC18F2221/2321/4221/4321 FAMILY
FIGURE 27-4:
HIGH/LOW-VOLTAGE DETECT CHARACTERISTICS
VDD
VLVD
(HLVDIF set by hardware)
(HLVDIF can be
cleared in software)
HLVDIF⁽¹⁾
Note 1: VDIRMAG = 0.
TABLE 27-4: HIGH/LOW-VOLTAGE DETECT CHARACTERISTICS
Standard Operating Conditions (unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for industrial
-40°C ≤ TA ≤ +125°C for extended
Param
No.
Symbol
Characteristic
Min Typ Max
D420
HLVD Voltage on VDD LVV = 0000 2.06
Transition High-to-Low _{LVV = 0001 2.12}
LVV = 0010 2.24
LVV = 0011 2.32
LVV = 0100 2.47
LVV = 0101 2.65
LVV = 0110 2.74
LVV = 0111 2.96
LVV = 1000 3.22
LVV = 1001 3.37
LVV = 1010 3.52
LVV = 1011 3.70
LVV = 1100 3.90
LVV = 1101 4.11
LVV = 1110 4.36
LVV = 1111 1.10
2.17 2.28
2.23 2.34
2.36 2.48
2.44 2.56
2.60 2.73
2.79 2.93
2.89 3.04
3.12 3.28
3.39 3.56
3.55 3.73
3.71 3.90
3.90 4.10
4.11 4.32
4.33 4.55
4.59 4.82
1.20 1.30
Units
Conditions
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V HLVDIN Input/Internal
Reference Voltage
© 2009 Microchip Technology Inc.
DS39689F-page 351