Datasheet

PIC16(L)F722A/723A
DS41417B-page 212  2010-2012 Microchip Technology Inc.
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 — 37 kHz LP Oscillator mode
DC — 4 MHz XT Oscillator mode
DC — 20 MHz HS Oscillator mode
DC — 20 MHz EC Oscillator mode
Oscillator Frequency
(1)
— 32.768 — kHz LP Oscillator mode
0.1 — 4 MHz XT Oscillator mode
1 — 20 MHz HS Oscillator mode, V
DD 2.7V
DC — 4 MHz RC Oscillator mode
OS02 T
OSC External CLKIN Period
(1)
27 — s LP Oscillator mode
250 —  ns XT Oscillator mode
50 —  ns HS Oscillator mode
50 —  ns EC Oscillator mode
Oscillator Period
(1)
— 30.5 — s LP Oscillator mode
250 — 10,000 ns XT Oscillator mode
50 — 1,000 ns HS Oscillator mode, V
DD 2.7V
250 — — ns RC Oscillator mode
OS03 T
CY Instruction Cycle Time
(1)
200 TCY DC ns TCY = 4/FOSC
OS04* TosH,
Tos L
External CLKIN High,
External CLKIN Low
2——s LP oscillator
100 — — ns XT oscillator
20 — — ns HS oscillator
OS05* TosR,
Tos F
External CLKIN Rise,
External CLKIN Fall
0— ns LP oscillator
0— ns XT oscillator
0— ns HS oscillator
* 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 OSC1 pin. When an
external clock input is used, the “max” cycle time limit is “DC” (no clock) for all devices.