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PIC17C44-08/P Datasheet(PDF) 158 Page - Microchip Technology

Part # PIC17C44-08/P
Description  High-Performance 8-Bit CMOS EPROM/ROM Microcontroller
PDF  240 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC17C44-08/P Datasheet(HTML) 158 Page - Microchip Technology

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PIC17C4X
DS30412C-page 158
© 1996 Microchip Technology Inc.
Applicable Devices 42 R42 42A 43 R43 44
FIGURE 17-5: TIMER0 CLOCK TIMINGS
TABLE 17-5:
TIMER0 CLOCK REQUIREMENTS
FIGURE 17-6: TIMER1, TIMER2, AND TIMER3 CLOCK TIMINGS
TABLE 17-6:
TIMER1, TIMER2, AND TIMER3 CLOCK REQUIREMENTS
Parameter
No.
Sym Characteristic
Min
Typ† Max Units Conditions
40
Tt0H T0CKI High Pulse Width
No Prescaler
0.5TCY + 20 §
—
—
ns
With Prescaler
10*
—
—
ns
41
Tt0L T0CKI Low Pulse Width
No Prescaler
0.5TCY + 20 §
—
—
ns
With Prescaler
10*
—
—
ns
42
Tt0P T0CKI Period
TCY + 40 §
N
—
—
ns
N = prescale value
(1, 2, 4, ..., 256)
*
These parameters are characterized but not tested.
†
Data in "Typ" column is at 5V, 25˚C unless otherwise stated. These parameters are for design guidance only and are not
tested.
§
This specification ensured by design.
Parameter
No.
Sym
Characteristic
Min
Typ
†
Max
Units Conditions
45
Tt123H
TCLK12 and TCLK3 high time
0.5 TCY + 20 §
—
—
ns
46
Tt123L
TCLK12 and TCLK3 low time
0.5 TCY + 20 §
—
—
ns
47
Tt123P
TCLK12 and TCLK3 input period
TCY + 40 §
N
—
—
ns
N = prescale value
(1, 2, 4, 8)
48
TckE2tmrI Delay from selected External Clock Edge to
Timer increment
2TOSC §
—
6 Tosc §
—
*
These parameters are characterized but not tested.
†
Data in "Typ" column is at 5V, 25˚C unless otherwise stated. These parameters are for design guidance only and are not
tested.
§
This specification ensured by design.
RA1/T0CKI
40
41
42
TCLK12
45
46
or
TCLK3
TMRx
48
48
47



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