Microchip Technology MA240029 データシート
2010-2011 Microchip Technology Inc.
DS39996F-page 371
PIC24FJ128GA310 FAMILY
TABLE 32-20: PLL CLOCK TIMING SPECIFICATIONS (V
DD
= 2.2V TO 3.6V)
AC CHARACTERISTICS
Standard Operating Conditions: 2V to 3.6V (unless otherwise stated)
Operating temperature
Operating temperature
-40°C
T
A
+85°C for Industrial
Param
No.
Symbol
Characteristic
Min
Typ
Max
Units
Conditions
OS50 F
PLLI
PLL Input Frequency
Range
Range
(
)
4
—
8
MHz
ECPLL mode
4
—
8
MHz
HSPLL mode
4
—
8
MHz
XTPLL mode
OS52 T
LOCK
PLL Start-up Time
(Lock Time)
(Lock Time)
—
—
128
s
OS53 D
CLK
CLKO Stability (Jitter)
-0.25
—
0.25
%
Note 1:
These parameters are characterized but not tested in manufacturing.
2:
Data in the “Typ” column is at 3.3V, 25°C unless otherwise stated. Parameters are for design guidance
only and are not tested.
only and are not tested.
TABLE 32-21: INTERNAL RC ACCURACY
AC CHARACTERISTICS
Standard Operating Conditions: 2V to 3.6V (unless otherwise stated)
Operating temperature
Operating temperature
-40°C
T
A
+85°C for Industrial
Param
No.
Characteristic
Min
Typ
Max
Units
Conditions
F20
FRC Accuracy @
8 MHz
8 MHz
)
-1
—
1
%
-10°C
T
A
+85°C 2V V
DD
3.6V
-1.5
—
1.5
%
-40°C
T
A
-10°C 2V V
DD
3.6V
F21
LPRC @ 31 kHz
-20
—
20
%
-40°C
T
A
+85°C V
CAP
(on-chip regulator
output voltage) = 1.8V
Note 1:
Frequency is calibrated at 25°C and 3.3V. OSCTUN bits can be used to compensate for temperature drift.
2:
To achieve this accuracy, physical stress applied to the microcontroller package (ex., by flexing the PCB)
must be kept to a minimum.
must be kept to a minimum.
TABLE 32-22: RC OSCILLATOR START-UP TIME
AC CHARACTERISTICS
Standard Operating Conditions: 2V to 3.6V (unless otherwise stated)
Operating temperature
Operating temperature
-40°C
T
A
+85°C for Industrial
Param
No.
Characteristic
Min
Typ
Max
Units
Conditions
T
FRC
—
15
—
s
T
LPRC
—
50
—
s