Datasheet

PIC16LF1904/6/7
DS41569A-page 246 Preliminary  2011 Microchip Technology Inc.
22.8 AC Characteristics: PIC16LF1904/6/7-I/E
TABLE 22-1: CLOCK OSCILLATOR TIMING REQUIREMENTS
TABLE 22-2: OSCILLATOR PARAMETERS
Standard Operating Conditions (unless otherwise stated)
Operating temperature -40°C  TA  +125°C
Param
No.
Sym. Characteristic Min. Typ† Max. Units Conditions
OS01 FOSC External CLKIN Frequency
(1)
DC — 0.5 MHz EC Oscillator mode (low)
DC — 4 MHz EC Oscillator mode (medium)
DC — 32 MHz EC Oscillator mode (high)
OS02 T
OSC External CLKIN Period
(1)
31.25 —  ns EC Oscillator mode
OS03 T
CY Instruction Cycle Time
(1)
200 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 (TCY) 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 con-
sumption. 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.
Standard Operating Conditions (unless otherwise stated)
Operating Temperature -40°C TA +125°C
Param
No.
Sym. Characteristic
Freq.
Tolerance
Min. Typ† Max. Units Conditions
OS08 HFOSC Internal Calibrated HFINTOSC
Frequency
(2)
10% — 16.0 — MHz 0°C  TA  +85°C, VDD 
2.5V
15% — 16.0 — MHz -40°C  TA  +125°C, VDD 
2.5V
OS08A MF
OSC Internal Calibrated MFINTOSC
Frequency
(2)
10% — 500 — kHz 0°C  TA  +85°C
15% — 500 — kHz -40°C  TA  +125°C
OS10* T
IOSC ST HFINTOSC
Wake-up from Sleep Start-up Time
MFINTOSC
Wake-up from Sleep Start-up Time
——58
s
— — 20 30
s
* 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 (TCY) 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 the OSC1 pin. When an
external clock input is used, the “max” cycle time limit is “DC” (no clock) for all devices.
2: To ensure these oscillator frequency tolerances, VDD and VSS must be capacitively decoupled as close to the device as
possible. 0.1
F and 0.01 F values in parallel are recommended.