PIC17C7XX Datasheet, PDF (239/328 Pages) Microchip Technology – High-Performance 8-Bit CMOS EPROM Microcontrollers with 10-bit A/D

PIC17C7XX
20.2 DC CHARACTERISTICS
PIC17LC7XX -08(Commercial, Industrial)
DC CHARACTERISTICS
Param.
No.
Sym
Characteristic
Standard Operating Conditions (unless otherwise stated)
Operating temperature
-40˚C ≤ TA ≤ +85˚C for industrial and
0˚C ≤ TA ≤ +70˚C for commercial
Min
Typ† Max Units
Conditions
D001
VDD
Supply Voltage
3.0
–
5.5
V
D002
VDR
RAM Data Retention
Voltage (Note 1)
1.5 *
–
–
V Device in SLEEP mode
D003
VPOR
VDD start voltage to
ensure internal
–
VSS
–
V See section on Power-on
Reset for details
Power-on Reset sig-
nal
D004
SVDD
VDD rise rate to
ensure proper
operation
0.010 *
–
– V/ms See section on Power-on
Reset for details
D005
VBOR
Brown-out Reset
voltage trip point
3.65
– 4.35 V
D006
VPORTP Power-on Reset trip
–
2.2
–
V
VDD = VPORTP
point
D010
IDD
D011
D014
Supply Current
(Note 2)
–
3
6 * mA FOSC = 4 MHz (Note 4)
–
6
12
mA FOSC = 8 MHz
–
85 150 µA FOSC = 32 kHz,
(EC osc configuration)
D021
IPD
Power-down Current
–
(Note 3)
<1
5
µA VDD = 3.0V,
WDT disabled
*
†
Note 1:
2:
3:
4:
These parameters are characterized but not tested.
Data in "Typ" column is at 5V, 25˚C unless otherwise stated. These parameters are for design guidance only and are
not tested.
This is the limit to which VDD can be lowered in SLEEP mode without losing RAM data.
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 con-
sumption.
The test conditions for all IDD measurements in active operation mode are:
OSC1=external square wave, from rail to rail; all I/O pins tristated, pulled to VDD 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: VDD / (2 • R).
For capacitive loads, the current can be estimated (for an individual I/O pin) as (CL • VDD) • f
CL = 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).
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 VDD or VSS.
For RC osc configuration, current through Rext is not included. The current through the resistor can be estimated by the
formula IR = VDD/2Rext (mA) with Rext in kOhm.
© 1998 Microchip Technology Inc.
Preliminary
DS30289A-page 239