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PIC16F84A Datasheet(PDF) 172 Page - Microchip Technology

Part # PIC16F84A
Description  8-Bit CMOS Microcontrollers
PDF  337 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC16F84A Datasheet(HTML) 172 Page - Microchip Technology

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PIC16C6X
DS30234D-page 172
© 1997 Microchip Technology Inc.
Applicable Devices 61 62 62A R62 63 R63 64 64A R64 65 65A R65 66 67
FIGURE 16-5: TIMER0 EXTERNAL CLOCK TIMINGS
TABLE 16-5:
TIMER0 EXTERNAL CLOCK REQUIREMENTS
Parameter
No.
Sym Characteristic
Min
Typ† Max Units Conditions
40
*
Tt0H T0CKI High Pulse Width
No Prescaler
0.5TCY + 20
—
—
ns
Must also meet
parameter 42
With Prescaler
10
—
—
ns
41
*
Tt0L T0CKI Low Pulse Width
No Prescaler
0.5TCY + 20
—
—
ns
Must also meet
parameter 42
With Prescaler
10
—
—
ns
42
*
Tt0P T0CKI Period
No Prescaler
TCY + 40
—
—
ns
N = prescale value
(2, 4, ..., 256)
With Prescaler
Greater of:
20 ns or
TCY + 40
N
——
ns
*
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.
Note: Refer to Figure 16-1 for load conditions.
41
42
40
RA4/T0CKI
TMR0



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