Datasheet

 2009 Microchip Technology Inc. DS39897C-page 323
PIC24FJ256GB110 FAMILY
TABLE 29-14: 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  T
A  +85°C for Industrial
Param
No.
Sym Characteristic
(1)
Min Typ
(2)
Max Units Conditions
OS50 F
PLLI PLL Input Frequency
Range
(2)
4 — 32 MHz ECPLL, HSPLL, XTPLL
modes
OS51 F
SYS PLL Output Frequency
Range
95.76 — 96.24 MHz
OS52 T
LOCK PLL Start-up Time
(Lock Time)
——200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 “Typ” column is at 3.3V, 25°C unless otherwise stated. Parameters are for design guidance only
and are not tested.
TABLE 29-15: INTERNAL RC OSCILLATOR SPECIFICATIONS
AC CHARACTERISTICS
Standard Operating Conditions: 2.0V to 3.6V (unless otherwise stated)
Operating temperature -40°C  T
A +85°C for Industrial
Param
No.
Sym Characteristic Min Typ Max Units Conditions
TFRC FRC Start-up Time — 15 — s
T
LPRC LPRC Start-up Time
—40—s
TABLE 29-16: INTERNAL RC OSCILLATOR ACCURACY
AC CHARACTERISTICS
Standard Operating Conditions: 2.0V to 3.6V (unless otherwise
stated)
Operating temperature -40°C  T
A +85°C for Industrial
Param
No.
Characteristic Min Typ Max Units Conditions
F20 FRC Accuracy@ 8 MHz
(1)
-2 — 2 % +25°C, 3.0V  VDD 3.6V
-5 — 5 % -40°C  TA +85°C,
3.0V  V
DD 3.6V
F21 LPRC Accuracy @ 31 kHz
(2)
-20 — 20 % -40°C  TA +85°C,
3.0V  V
DD 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.