Datasheet

PIC32MX5XX/6XX/7XX
DS61156D-page 184 © 2010 Microchip Technology Inc.
TABLE 31-18: PLL CLOCK TIMING SPECIFICATIONS (VDD = 2.3V TO 3.6V)
AC CHARACTERISTICS
Standard Operating Conditions: 2.3V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
Param.
No.
Symbol Characteristics
(1)
Min. Typical
(2)
Max. Units Conditions
OS50 FPLLI PLL Voltage Controlled
Oscillator (VCO) Input
Frequency Range
4 — 5 MHz ECPLL, HSPLL, XTPLL,
FRCPLL modes
OS51 F
SYS On-Chip VCO System
Frequency
60 — 120 MHz —
OS52 T
LOCK PLL Start-up Time (Lock Time) — — 2 ms —
OS53 D
CLK CLKO Stability
(Period Jitter or Cumulative)
-0.25 — +0.25 % Measured over 100 ms
period
Note 1: These parameters are characterized, but not tested in manufacturing.
2: Data in “Typical” column is at 3.3V, 25°C unless otherwise stated. Parameters are for design guidance only
and are not tested.
TABLE 31-19: INTERNAL FRC ACCURACY
AC CHARACTERISTICS
Standard Operating Conditions: 2.3V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for industrial
Param.
No.
Characteristics Min. Typical Max. Units Conditions
Internal FRC Accuracy @ 8.00 MHz (Note 1)
F20 FRC -2 — +2 % —
Note 1: Frequency calibrated at 25°C and 3.3V. The TUN bits can be used to compensate for temperature drift.
TABLE 31-20: INTERNAL RC ACCURACY
AC CHARACTERISTICS
Standard Operating Conditions: 2.3V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
Param.
No.
Characteristics Min. Typical Max. Units Conditions
LPRC @ 31.25 kHz (Note 1)
F21 LPRC -15 — +15 % —
Note 1: Change of LPRC frequency as VDD changes.