pic16c61 Microchip Technology Inc., pic16c61 Datasheet - Page 169
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pic16c61
Manufacturer Part Number
pic16c61
Description
8-bit Cmos Microcontrollers Technology
Manufacturer
Microchip Technology Inc.
Datasheet
1.PIC16C61.pdf
(336 pages)
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16.5
FIGURE 16-2: EXTERNAL CLOCK TIMING
TABLE 16-2:
Note 1: Instruction cycle period (T
Parameter
1997 Microchip Technology Inc.
†
CLKOUT
OSC1
No.
1
2
3
4
Timing Diagrams and Specifications
Data in "Typ" column is at 5V, 25˚C unless otherwise stated. These parameters are for design guidance only and are not
tested.
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 the OSC1/CLKIN pin.
When an external clock input is used, the "Max." cycle time limit is "DC" (no clock) for all devices.
TosR,
TosL,
TosH
Sym
Fosc
TosF
Tosc
T
CY
EXTERNAL CLOCK TIMING REQUIREMENTS
Characteristic
External CLKIN Frequency
(Note 1)
Oscillator Frequency
(Note 1)
External CLKIN Period
(Note 1)
Oscillator Period
(Note 1)
Instruction Cycle Time (Note 1)
External Clock in (OSC1) High or
Low Time
External Clock in (OSC1) Rise or
Fall Time
Q4
CY
) equals four times the input oscillator time-base period. All specified values are based on
Applicable Devices 61 62 62A R62 63 R63 64 64A R64 65 65A R65 66 67
Q1
1
Q2
Min
250
250
250
250
250
DC
DC
DC
DC
DC
0.1
1.0
2.5
50
50
50
10
25
50
15
1
1
5
5
2
Typ†
T
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
3
CY
Q3
10,000
1,000
1,000
3
Max
200
DC
20
20
—
—
—
—
—
—
—
—
—
—
—
—
4
4
4
4
4
Units Conditions
MHz
MHz
MHz
MHz
MHz
MHz
MHz
kHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Q4
s
s
s
s
4
LP osc mode
LP osc mode
LP oscillator
HS oscillator
HS oscillator
XT and RC osc mode
HS osc mode (-04)
HS osc mode (-20)
LP osc mode
RC osc mode
XT osc mode
HS osc mode (-04)
HS osc mode (-20)
XT and RC osc mode
HS osc mode (-04)
HS osc mode (-20)
RC osc mode
XT osc mode
HS osc mode (-04)
HS osc mode (-20)
T
XT oscillator
XT oscillator
LP oscillator
CY
PIC16C6X
4
= 4/Fosc
DS30234D-page 169
Q1
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