PIC16LF1454 Datasheet, PDF (367/418 Pages) Microchip Technology – 14/20-Pin Flash, 8-Bit USB Microcontrollers with XLP Technology

PIC16(L)F1454/5/9
29.9 AC Characteristics: PIC16(L)F1454/5/9-I/E
FIGURE 29-5:
CLOCK TIMING
Q4
Q1
Q2
Q3
CLKIN
CLKOUT
(CLKOUT Mode)
OS02
OS12
OS03
Note 1: See Table 29-3 for timing information.
Q4
Q1
OS11
TABLE 29-1: CLOCK OSCILLATOR TIMING REQUIREMENTS
Standard Operating Conditions (unless otherwise stated)
Operating temperature -40°C  TA  +125°C
Param
No.
Sym.
Characteristic
Min. Typ† Max. Units
Conditions
OS01
OS02
OS03
*
†
Note 1:
FOSC External CLKIN Frequency⁽¹⁾
DC
—
0.5
MHz EC Oscillator mode (low)
DC
—
4
MHz EC Oscillator mode (medium)
TOSC
TCY
External CLKIN Period⁽¹⁾
Instruction Cycle Time⁽¹⁾
DC
—
31.25
—
125
—
20
MHz EC Oscillator mode (high)

ns EC mode
DC
ns TCY = FOSC/4
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.
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 CLKIN pin. When an external
clock input is used, the “max” cycle time limit is “DC” (no clock) for all devices.
TABLE 29-2: OSCILLATOR PARAMETERS
Standard Operating Conditions (unless otherwise stated)
Operating Temperature -40°C TA +125°C
Param
No.
Sym.
Characteristic
Min. Typ† Max. Units
Conditions
OS08 HFOSC
OS08A HFTOL
Internal Calibrated HFINTOSC Frequency⁽¹⁾
Frequency Tolerance
— 16.0 — MHz 0°C  TA  +85°C
— ±3 —
% +25°C, 16 MHz
— ±6 —
% 0°C  TA  +85°C, 16 MHz
OS09 LFOSC
Internal LFINTOSC Frequency
—
31
— kHz -40°C  TA  +125°C
OS10* TIOSC ST
HFINTOSC
Wake-up from Sleep Start-up Time
—
5
8
s
OS11* TUNELOCK HFINTOSC
Self-tune Lock Time
— <5
8
mS NOTE 2
* 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: 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.
2: Time for reference clock stable and in range to HFINTOSC tuned within range specified by OS08A (with Self-Tune).
 2012 Microchip Technology Inc.
Preliminary
DS41639A-page 367