Datasheet

 2015 Microchip Technology Inc. Preliminary DS60001320B-page 625
PIC32MZ Embedded Connectivity with Floating Point Unit (EF) Family
FIGURE 37-2: EXTERNAL CLOCK TIMING
OSC1
OS20
OS30
OS30
OS31
OS31
TABLE 37-17: EXTERNAL CLOCK TIMING REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 2.1V to 3.6V
(unless otherwise stated)
Operating temperature -40°C  TA  +85°C for Industrial 
-40°C  TA  +125°C for Extended
Param.
No.
Symbol Characteristics Minimum Typical
(1)
Maximum Units Conditions
OS10 FOSC External CLKI Frequency
(External clocks allowed only
in EC and ECPLL modes)
DC — 64 MHz EC (Note 2,3)
OS13 Oscillator Crystal Frequency 4 — 32 MHz HS (Note 2,3)
OS15 32 32.768 100 kHz SOSC (Note 2)
OS20 TOSC TOSC = 1/FOSC — — — — See parameter
OS10 for F
OSC
value
OS30 TOSL,
TOSH
External Clock In (OSC1)
High or Low Time
0.375 x TOSC — — ns EC (Note 2)
OS31 TOSR,
TOSF
External Clock In (OSC1)
Rise or Fall Time
— — 7.5 ns EC (Note 2)
OS40 TOST Oscillator Start-up Timer Period
(Only applies to HS, HSPLL,
and S
OSC Clock Oscillator
modes)
— 1024 — TOSC (Note 2)
OS41 TFSCM Primary Clock Fail Safe 
Time-out Period
— 2 — ms (Note 2)
OS42 GM External Oscillator
Transconductance
— 400 — µA/V VDD = 3.3V,
TA = +25°C, HS
(Note 2)
Note 1: Data in “Typical” column is at 3.3V, +25°C unless otherwise stated. Parameters are characterized but are
not tested.
2: This parameter is characterized, but not tested in manufacturing.
3: See parameter OS50 for PLL input frequency limitations.