Datasheet

PIC18F2455/2550/4455/4550
DS39632E-page 376 © 2009 Microchip Technology Inc.
Module Differential Currents (ΔIWDT, ΔIBOR, ΔILVD, ΔIOSCB, ΔIAD)
D022 ΔI
WDT
Watchdog Timer 1.3 3.8 μA-40°C
V
DD = 2.0V1.4 3.8 μA+25°C
2.0 3.8 μA+85°C
1.9 4.6 μA-40°C
V
DD = 3.0V2.0 4.6 μA+25°C
2.8 4.6 μA+85°C
4.0 10 μA-40°C
V
DD = 5.0V5.5 10 μA+25°C
5.6 10 μA+85°C
D022A ΔI
BOR Brown-out Reset
(4)
35 40 μA -40°C to +85°C VDD = 3.0V
40 45 μA -40°C to +85°C
V
DD = 5.0V
0.1 2 μA -40°C to +85°C
Sleep mode,
BOREN1:BOREN0 = 10
D022B ΔI
LVD High/Low-Voltage
Detect
(4)
22 38 μA -40°C to +85°C VDD = 2.0V
25 40 μA -40°C to +85°C VDD = 3.0V
29 45 μA -40°C to +85°C V
DD = 5.0V
D025 ΔIOSCB Timer1 Oscillator 2.1 4.5 μA-40°C
V
DD = 2.0V 32 kHz on Timer1
(3)
1.8 4.5 μA+25°C
2.1 4.5 μA+85°C
2.2 6.0 μA-40°C
V
DD = 3.0V 32 kHz on Timer1
(3)
2.6 6.0 μA+25°C
2.9 6.0 μA+85°C
3.0 8.0 μA-40°C
V
DD = 5.0V 32 kHz on Timer1
(3)
3.2 8.0 μA+25°C
3.4 8.0 μA+85°C
D026 ΔI
AD A/D Converter 1.0 2.0 μA -40°C to +85°C VDD = 2.0V
A/D on, not converting1.0 2.0 μA -40°C to +85°C VDD = 3.0V
1.0 2.0 μA -40°C to +85°C V
DD = 5.0V
28.2 DC Characteristics: Power-Down and Supply Current
PIC18F2455/2550/4455/4550 (Industrial)
PIC18LF2455/2550/4455/4550 (Industrial) (Continued)
PIC18LF2455/2550/4455/4550
(Industrial)
Standard Operating Conditions (unless otherwise stated)
Operating temperature -40°C ≤ T
A ≤ +85°C for industrial
PIC18F2455/2550/4455/4550
(Industrial)
Standard Operating Conditions (unless otherwise stated)
Operating temperature -40°C ≤ T
A ≤ +85°C for industrial
Param
No.
Symbol Device Typ Max Units Conditions
Legend: Shading of rows is to assist in readability of the table.
Note 1: The power-down current in Sleep mode does not depend on the oscillator type. Power-down current is measured
with the part in Sleep mode, with all I/O pins in high-impedance state and tied to VDD or VSS and all features that
add delta current disabled (such as WDT, Timer1 Oscillator, BOR, etc.).
2: The supply current is mainly a function of operating voltage, frequency and mode. Other factors, such as I/O pin
loading and switching rate, oscillator type and circuit, internal code execution pattern and temperature, also have
an impact on the current consumption.
The test conditions for all I
DD measurements in active operation mode are:
OSC1 = external square wave, from rail-to-rail; all I/O pins tri-stated, pulled to V
DD or VSS;
MCLR
= VDD; WDT enabled/disabled as specified.
3: Standard low-cost 32 kHz crystals have an operating temperature range of -10°C to +70°C. Extended
temperature crystals are available at a much higher cost.
4: BOR and HLVD enable internal band gap reference. With both modules enabled, current consumption will be
less than the sum of both specifications.