PIC17C7XX Datasheet, PDF (240/328 Pages) Microchip Technology – High-Performance 8-Bit CMOS EPROM Microcontrollers with 10-bit A/D

PIC17C7XX
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
Module Differential
Current
D023
∆IBOR
BOR circuitry
–
150 300 µA VDD = 4.5V, BODEN
enabled
D024
∆IWDT
Watchdog Timer
–
10
35
µA VDD = 5.5V
D026
∆IAD
A/D converter
–
1
–
µA VDD = 5.5V, A/D not con-
verting
*
†
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.
DS30289A-page 240
Preliminary
© 1998 Microchip Technology Inc.