Datasheet
2010 Microchip Technology Inc. DS39951C-page 279
PIC24FJ64GA104 FAMILY
TABLE 28-17: PLL CLOCK TIMING SPECIFICATIONS (VDD = 2.0V TO 3.6V)
AC CHARACTERISTICS
Standard Operating Conditions: 2.0V to 3.6V (unless otherwise stated)
Operating temperature -40°C TA +85°C for Industrial
-40°C T
A +125°C for Extended
Param
No.
Sym Characteristic
(1)
Min Typ
(2)
Max Units Conditions
OS50 F
PLLI PLL Input Frequency
Range
3
3
—
—
8
6
MHz
MHz
ECPLL, HSPLL, XTPLL
modes, -40°C T
A +85°C
ECPLL, HSPLL, XTPLL
modes, -40°C TA +125°C
OS51 FSYS PLL Output Frequency
Range
8
8
—
—
32
24
MHz
MHz
-40°C TA +85°C
-40°C T
A +125°C
OS52 TLOCK PLL Start-up Time
(Lock Time)
—— 2ms
OS53 D
CLK CLKO Stability (Jitter) -2 1 2 % Measured over 100 ms period
Note 1: These parameters are characterized but not tested in manufacturing.
2: Data in “Typ” column is at 3.3V, 25°C unless otherwise stated. Parameters are for design guidance only
and are not tested.
TABLE 28-18: INTERNAL RC OSCILLATOR SPECIFICATIONS
AC CHARACTERISTICS
Standard Operating Conditions: 2.0V to 3.6V (unless otherwise stated)
Operating temperature -40°C TA +85°C for Industrial
-40°C T
A +125°C for Extended
Param
No.
Sym Characteristic
(1)
Min Typ Max Units Conditions
T
FRC FRC Start-up Time
—
15
—
s
T
LPRC LPRC Start-up Time — 500 — s
TABLE 28-19: INTERNAL RC OSCILLATOR ACCURACY
AC CHARACTERISTICS
Standard Operating Conditions: 2.0V to 3.6V (unless otherwise stated)
Operating temperature -40°C TA +85°C for Industrial
-40°C T
A +125°C for Extended
Param
No.
Characteristic Min Typ Max Units Conditions
F20 FRC Accuracy @ 8 MHz
(1,3)
-1.25 +0.25 1.0 % -40°C TA +85°C, 3.0V VDD 3.6V
F21 LPRC Accuracy @ 31 kHz
(2)
-15 — 15 % -40°C TA +85°C, 3.0V VDD 3.6V
Note 1: Frequency calibrated at 25°C and 3.3V. OSCTUN bits can be used to compensate for temperature drift.
2: Change of LPRC frequency as VDD changes.
3: To achieve this accuracy, physical stress applied to the microcontroller package (ex: by flexing the PCB)
must be kept to a minimum.