Information

PIC18F2331/2431/4331/4431
DS80239A-page 4 © 2005 Microchip Technology Inc.
5. Module: LVD Characteristics
The specifications and parameter numbers for the
Low-Voltage Detect thresholds (V
LVD, originally
parameter D420) in Table 25-2 of the Device Data
Sheet have been changed.
The specifications and parameter numbers have
been revised for devices with date codes from
0401xxx to 0420xxx, inclusive.
Specifications and parameter numbers have been
revised for specific temperature ranges for date
codes from 0421xxx and higher.
The new information is shown in bold text.
TABLE 25-2: LOW-VOLTAGE DETECT CHARACTERISTICS
PIC18LF2331/2431/4331/4431
(Industrial)
Standard Operating Conditions (unless otherwise stated)
Operating temperature -40°C ≤ T
A ≤ +85°C for industrial
PIC18F2331/2431/4331/4431
(Industrial, Extended)
Standard Operating Conditions (unless otherwise stated)
Operating temperature -40°C ≤ T
A ≤ +85°C for industrial
-40°C ≤ T
A ≤ +125°C for extended
Param
No.
Symbol Characteristic Min Typ† Max Units Conditions
Date Codes from 0401xxx to 0420xxx, inclusive
D420A V
LVD LVD Voltage on VDD Transition High-to-Low Industrial Low Voltage (-40°C to +85°C)
PIC18LF2X31/4X31 LVDL<3:0> = 0000 N/A N/A N/A V Reserved
LVDL<3:0> = 0001 N/A N/A N/A V Reserved
LVDL<3:0> = 0010 2.08 2.26 2.44 V
LVDL<3:0> = 0011 2.26 2.45 2.65 V
LVDL<3:0> = 0100 2.35 2.55 2.76 V
LVDL<3:0> = 0101 2.55 2.77 2.99 V
LVDL<3:0> = 0110 2.64 2.87 3.10 V
LVDL<3:0> = 0111 2.82 3.07 3.31 V
LVDL<3:0> = 1000 3.09 3.36 3.63 V
LVDL<3:0> = 1001 3.29 3.57 3.86 V
LVDL<3:0> = 1010 3.38 3.67 3.96 V
LVDL<3:0> = 1011 3.56 3.87 4.18 V
LVDL<3:0> = 1100 3.75 4.07 4.40 V
LVDL<3:0> = 1101 3.93 4.28 4.62 V
LVDL<3:0> = 1110 4.23 4.60 4.96 V
D420B LVD Voltage on V
DD Transition High-to-Low Industrial (-40°C to +85°C)
PIC18F2X31/4X31 LVDL<3:0> = 1011 3.56 3.87 4.18 V
LVDL<3:0> = 1100 3.75 4.07 4.40 V
LVDL<3:0> = 1101 3.93 4.28 4.62 V
LVDL<3:0> = 1110 4.23 4.60 4.96 V
D420C LVD Voltage on VDD Transition High-to-Low Extended (-40°C to +125°C)
PIC18F2X31/4X31 LVDL<3:0> = 1011 3.41 3.87 4.33 V
LVDL<3:0> = 1100 3.58 4.07 4.56 V
LVDL<3:0> = 1101 3.77 4.28 4.79 V
LVDL<3:0> = 1110 4.04 4.60 5.15 V
Legend: Shading of rows is to assist in readability of the table.
† Production tested at T
AMB = 25°C. Specifications over temperature limits ensured by characterization.