PIC18F6X2X Datasheet, PDF (341/386 Pages) Microchip Technology – 64/80-Pin High Performance, 64-Kbyte Enhanced FLASH Microcontrollers with A/D

PIC18F6X2X/8X2X
27.4.3 TIMING DIAGRAMS AND SPECIFICATIONS
FIGURE 27-5:
EXTERNAL CLOCK TIMING (ALL MODES EXCEPT PLL)
Q4
Q1
Q2
Q3
Q4
Q1
OSC1
CLKO
1
3
3
4
4
2
TABLE 27-6: EXTERNAL CLOCK TIMING REQUIREMENTS
Param. No. Symbol
Characteristic
Min
Max
Units
Conditions
1A
1
2
3
4
Note 1:
FOSC
External CLKI Frequency⁽¹⁾
DC
Oscillator Frequency⁽¹⁾
DC
25
MHz EC, ECIO
40
MHz EC, ECIO
DC
4
MHz RC osc
0.1
4
MHz XT osc
4
25
MHz HS osc
4
10
MHz HS + PLL osc
4
6.25
MHz HS + PLL osc
5
200
kHz LP Osc mode
TOSC
External CLKI Period⁽¹⁾
Oscillator Period⁽¹⁾
25
—
ns EC, ECIO
160
—
ns EC, ECIO
250
—
ns RC osc
250
10,000
ns XT osc
25
250
ns HS osc
100
250
ns HS + PLL osc
100
160
ns HS + PLL osc
25
—
µs LP osc
TCY
Instruction Cycle Time⁽¹⁾
100
—
ns TCY = 4/FOSC
TosL,
TosH
External Clock in (OSC1)
High or Low Time
30
—
ns XT osc
2.5
—
µs LP osc
10
—
ns HS osc
TosR,
External Clock in (OSC1) Rise
—
TosF
or Fall Time
—
20
ns XT osc
50
ns LP osc
—
7.5
ns HS osc
Instruction cycle period (TCY) equals four times the input oscillator time base period for all configurations except PLL. All
specified values are based on characterization data for that particular oscillator type under standard operating condi-
tions 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/CLKI pin. When an external clock input is used, the “max.” cycle time limit is “DC” (no clock)
for all devices.
TABLE 27-7: PLL CLOCK TIMING SPECIFICATIONS (VDD = 4.2 TO 5.5V)
Param. No. Sym
Characteristic
Min Typ† Max Units
Conditions
FOSC Oscillator Frequency Range
4
—
10 MHz HS mode
FSYS On-chip VCO System Frequency
16
—
40 MHz HS mode
t_rc
PLL Start-up Time (Lock Time)
∆CLK CLKO Stability (Jitter)
—
—
2
ms
-2
—
+2
%
† Data in “Typ” column is at 5V, 25°C, unless otherwise stated. These parameters are for design guidance only and are
not tested.
 2003 Microchip Technology Inc.
Advance Information
DS39612A-page 339