PIC18LF8720 Microchip Technology, PIC18LF8720 Datasheet - Page 324
PIC18LF8720
Manufacturer Part Number
PIC18LF8720
Description
(PIC18LF6620/6520/8520/6620/8620/6720/8720) 64/80-Pin High-Performance / 64-Kbyte Enhanced Flash Microcontrollers
Manufacturer
Microchip Technology
Datasheet
1.PIC18LF8720.pdf
(380 pages)
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PIC18F6520/8520/6620/8620/6720/8720
26.4.3
FIGURE 26-7:
TABLE 26-6:
DS39609B-page 322
Param
1A
1
2
3
4
Note 1:
No.
OSC1
CLKO
F
T
T
T
T
T
T
OSC
CY
OS
OS
OS
OS
Symbol
OSC
Instruction cycle period (T
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/CLKI pin. When an external clock input is used, the “max.” cycle time limit is “DC” (no clock) for all devices.
TIMING DIAGRAMS AND SPECIFICATIONS
L,
H
R,
F
EXTERNAL CLOCK TIMING REQUIREMENTS
External CLKI Frequency
Oscillator Frequency
External CLKI Period
Oscillator Period
Instruction Cycle Time
External Clock in (OSC1)
High or Low Time
External Clock in (OSC1)
Rise or Fall Time
Q4
EXTERNAL CLOCK TIMING (ALL MODES EXCEPT PLL)
Characteristic
CY
(1)
) equals four times the input oscillator time base period for all configurations except PLL. All
(1)
(1)
Q1
(1)
1
(1)
Min
250
250
100
160
100
DC
DC
DC
DC
0.1
2.5
40
25
40
40
30
30
10
—
—
—
4
4
4
4
5
Q2
10,000
Max
6.25
6.25
250
250
250
200
2
7.5
25
40
25
25
10
33
20
50
—
—
—
—
—
—
—
—
4
4
3
Q3
Units
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
kHz
ns
ns
ns
ns
ns
ns
ns
ns
µs
ns
ns
µs
ns
ns
ns
ns
3
EC, ECIO, PIC18FX620/X720
(-40°C to +85°C)
EC, ECIO, PIC18FX520 (-40°C to +85°C)
EC, ECIO, PIC18FX520 using external
memory interface (-40°C to +85°C)
RC oscillator
XT oscillator
HS oscillator
HS + PLL oscillator, PIC18FX520
HS + PLL oscillator, PIC18FX520 using
external memory interface
HS + PLL oscillator, PIC18FX620/X720
LP Oscillator mode
EC, ECIO, PIC18FX620/X720
(-40°C to +85°C)
EC, ECIO, PIC18FX520 (-40°C to +85°C)
EC, ECIO, PIC18FX520 using external
memory interface (-40°C to +85°C)
RC oscillator
XT oscillator
HS oscillator
HS + PLL oscillator, PIC18FX520
HS + PLL oscillator, PIC18FX620/X720
LP oscillator
T
XT oscillator
LP oscillator
HS oscillator
XT oscillator
LP oscillator
HS oscillator
CY
= 4/F
Q4
4
2004 Microchip Technology Inc.
OSC
4
Conditions
Q1
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