Datasheet

 1998-2013 Microchip Technology Inc. DS30289C-page 267
PIC17C7XX
21.0 PIC17C7XX DC AND AC CHARACTERISTICS
The graphs and tables provided in this section are for design guidance and are not tested nor guaranteed. In some
graphs or tables the data presented is outside specified operating range (e.g., outside specified V
DD range). This is for
information only and devices are ensured to operate properly only within the specified range.
The data presented in this section is a statistical summary of data collected on units from different lots over a period of
time.
• Typ or Typical represents the mean of the distribution at 25C.
• Max or Maximum represents (mean + 3) over the temperature range of -40C to 85C.
• Min or Minimum represents (mean - 3) over the temperature range of -40C to 85C.
Note: Standard deviation is denoted by sigma ().
TABLE 21-1: PIN CAPACITANCE PER PACKAGE TYPE
FIGURE 21-1: TYPICAL RC OSCILLATOR FREQUENCY vs. TEMPERATURE
Pin Name
Typical Capacitance (pF)
68-pin PLCC 64-pin TQFP
All pins, except MCLR
, VDD, and VSS 10 10
MCLR
pin 20 20
Fosc
Fosc (25C)
1.10
1.08
1.06
1.04
1.02
1.00
0.98
0.96
0.94
0.92
0.90
010 20253040506070
T(C)
Frequency normalized to +25C
VDD = 5.5V
VDD = 3.5V
REXT  10 k
CEXT = 100 pF