PIC16F1847_13 Datasheet, PDF (359/440 Pages) Microchip Technology – 18/20/28-Pin Flash Microcontrollers with XLP Technology

PIC16(L)F1847
30.8 AC Characteristics
FIGURE 30-6:
CLOCK TIMING
Q4
Q1
Q2
Q3
Q4
Q1
OSC1/CLKIN
OSC2/CLKOUT
(LP,XT,HS Modes)
OS02
OS04 OS04
OS03
OSC2/CLKOUT
(CLKOUT Mode)
TABLE 30-1: 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
OS04*
OS05*
*
†
Note 1:
FOSC External CLKIN Frequency
(Note 1)
DC
—
0.5
MHz EC Oscillator mode (low)
DC
—
4
MHz EC Oscillator mode (medium)
DC
—
32
MHz EC Oscillator mode (high)
Oscillator Frequency (Note 1)
— 32.768 —
kHz LP Oscillator mode
0.1
—
4
MHz XT Oscillator mode
1
—
4
MHz HS Oscillator mode
1
—
20
MHz HS Oscillator mode, VDD > 2.7V
DC
—
4
MHz RC Oscillator mode, VDD > 2.0V
TOSC External CLKIN Period (Note 1) 27
—

s LP Oscillator mode
250
—

ns XT Oscillator mode
50
—

ns HS Oscillator mode
50
—

ns EC Oscillator mode
Oscillator Period (Note 1)
—
30.5
—
s LP Oscillator mode
250
— 10,000 ns XT Oscillator mode
50
—
1,000
ns HS Oscillator mode
250
—
—
ns RC Oscillator mode
TCY
Instruction Cycle Time (Note 1) 200
TCY
DC
ns TCY = FOSC/4
TosH, External CLKIN High,
TosL External CLKIN Low
2
—
—
s LP oscillator
100
—
—
ns XT oscillator
20
—
—
ns HS oscillator
TosR, External CLKIN Rise,
TosF 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.
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.
 2011-2013 Microchip Technology Inc.
Preliminary
DS40001453D-page 359