Datasheet

PIC17C7XX
DS30289C-page 242  1998-2013 Microchip Technology Inc.
20.1 DC Characteristics
PIC17LC7XX-08
(Commercial, Industrial)
Standard Operating Conditions (unless otherwise stated)
Operating temperature
-40°C  T
A  +85°C for industrial and
0°C  T
A  +70°C for commercial
PIC17C7XX-16
(Commercial, Industrial, Extended)
PIC17C7XX-33
(Commercial, Industrial, Extended)
Standard Operating Conditions (unless otherwise stated)
Operating temperature
-40°C  TA  +125°C for extended
-40°C  T
A  +85°C for industrial
0°C  T
A  +70°C for commercial
Param.
No.
Sym Characteristic Min Typ† Max Units Conditions
D001 V
DD Supply Voltage
PIC17LC7XX
3.0 — 5.5 V
D001 PIC17C7XX-33
PIC17C7XX-16
4.5
V
BOR
—
—
5.5
5.5
V
V
(BOR enabled) (Note 5)
D002 V
DR RAM Data Retention
Voltage (Note 1)
1.5 — — V Device in SLEEP mode
D003 V
POR VDD Start Voltage to
ensure internal
Power-on Reset signal
— Vss — V See section on Power-on
Reset for details
D004 SVDD VDD Rise Rate to ensure proper operation
PIC17LCXX 0.010 — — V/ms See section on Power-on
Reset for details
D004 PIC17CXX 0.085 — — V/ms See section on Power-on
Reset for details
D005 V
BOR Brown-out Reset
voltage trip point
3.65 — 4.35 V
D006 V
PORTP Power-on Reset trip
point
—2.2—VVDD = VPORTP
† Data in "Typ" column is at 5V, 25°C unless otherwise stated.
Note 1: This is the limit to which VDD can be lowered in SLEEP mode without losing RAM data.
2: The supply current is mainly a function of the operating voltage and frequency. Other factors such as I/O pin
loading and switching rate, oscillator type, 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, T0CKI = VDD,
MCLR
= VDD; WDT disabled.
Current consumed from the oscillator and I/O’s driving external capacitive or resistive loads needs to be
considered.
For the RC oscillator, the current through the external pull-up resistor (R) can be estimated as:
V
DD/(2  R).
For capacitive loads, the current can be estimated (for an individual I/O pin) as (C
LVDD)  f
C
L = Total capacitive load on the I/O pin; f = average frequency the I/O pin switches.
The capacitive currents are most significant when the device is configured for external execution (includes
Extended Microcontroller mode).
3: 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 hi-impedance state and tied to V
DD or VSS.
4: For RC osc configuration, current through R
EXT is not included. The current through the resistor can be esti-
mated by the formula I
R = VDD/2REXT (mA) with REXT in kOhm.
5: This is the voltage where the device enters the Brown-out Reset. When BOR is enabled, the device (-16)
will operate correctly to this trip point.