PIC16LC62X-04/JW View Datasheet(PDF) - Microchip Technology
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Description
MFG CO.
'PIC16LC62X-04/JW' PDF : 112 Pages View PDF
PIC16C62X(A)
12.6 Timing Diagrams and Specifications
FIGURE 12-2: EXTERNAL CLOCK TIMING
Q4
OSC1
CLKOUT
Q1
Q2
Q3
1
3
3
2
Q4
Q1
4
4
TABLE 12-4: EXTERNAL CLOCK TIMING REQUIREMENTS
Parameter Sym Characteristic
No.
Min Typ† Max Units Conditions
Fos External CLKIN Frequency
(Note 1)
DC
—
4
MHz XT and RC osc mode, VDD=5.0V
DC
—
20 MHz HS osc mode
DC
—
200 kHz LP osc mode
Oscillator Frequency
(Note 1)
DC
—
0.1
—
4
MHz RC osc mode, VDD=5.0V
4
MHz XT osc mode
1
—
20 MHz HS osc mode
DC
–
200 kHz LP osc mode
1
Tosc External CLKIN Period
(Note 1)
250
—
50
—
—
ns XT and RC osc mode
—
ns HS osc mode
5
—
—
µs LP osc mode
Oscillator Period
(Note 1)
250
—
—
ns RC osc mode
250
— 10,000 ns XT osc mode
50
—
1,000 ns HS osc mode
5
—
—
µs LP osc mode
2
TCY Instruction Cycle Time (Note 1)
1.0 Fosc/4 DC
µs TCYS=FOSC/4
3*
TosL, External Clock in (OSC1) High or 100*
—
TosH Low Time
2*
—
—
ns XT oscillator, TOSC L/H duty cycle
—
µs LP oscillator, TOSC L/H duty cycle
20*
—
—
ns HS oscillator, TOSC L/H duty
cycle
4*
TosR, External Clock in (OSC1) Rise or
25*
—
TosF Fall Time
50*
—
—
ns XT oscillator
—
ns LP oscillator
15*
—
—
ns HS oscillator
*
These parameters are characterized but not tested.
† Data in "Typ" column is at 5.0V, 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.
© 1997 Microchip Technology Inc.
Preliminary
DS30235F-page 87
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