Datasheet

PIC16(L)F720/721
DS40001430E-page 196  2010-2013 Microchip Technology Inc.
FIGURE 23-6: CLOCK TIMING
CLKIN
CLKOUT
Q4 Q1 Q2 Q3 Q4 Q1
OS02
OS03
TABLE 23-1: CLOCK OSCILLATOR TIMING REQUIREMENTS
Standard Operating Conditions (unless otherwise stated)
Operating temperature -40°C  T
A  +125°C
Param.
No.
Sym. Characteristic Min. Typ† Max. Units Conditions
OS01 F
OSC External CLKIN Frequency
(1)
DC — 16 MHz EC Oscillator mode
OS02 T
OSC External CLKIN Period
(1)
63 —  ns EC Oscillator mode
OS03 T
CY Instruction Cycle Time
(1)
250 TCY DC ns TCY = 4/FOSC
* These parameters are characterized but not tested.
† Data in “Typ” column is at 3.0V, 25°C unless otherwise stated. These parameters are for design guidance only and are
not tested.
Note 1: Instruction cycle period (T
CY) equals four times the input oscillator time base period. All specified values are based on
characterization data for that particular oscillator type under standard operating conditions with the device executing
code. Exceeding these specified limits may result in an unstable oscillator operation and/or higher than expected current
consumption. All devices are tested to operate at “min” values with an external clock applied to CLKIN pin. When an
external clock input is used, the “max” cycle time limit is “DC” (no clock) for all devices.