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PIC16C925-S/CL Datasheet(PDF) 152 Page - Microchip Technology

Part # PIC16C925-S/CL
Description  64/68-Pin CMOS Microcontrollers with LCD Driver
PDF  182 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC16C925-S/CL Datasheet(HTML) 152 Page - Microchip Technology

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PIC16C925/926
DS39544A-page 150
Preliminary
 2001 Microchip Technology Inc.
FIGURE 15-8:
TIMER0 AND TIMER1 EXTERNAL CLOCK TIMINGS
TABLE 15-6:
TIMER0 AND TIMER1 EXTERNAL CLOCK REQUIREMENTS
46
47
45
48
41
42
40
RA4/T0CKI
RC0/T1OSO/T1CKI
TMR0 or
TMR1
Note:
Refer to Figure 15-4 for load conditions.
Param
No.
Symbol
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
With Prescaler
Greater of:
20 or TCY + 40
N
——
ns
N = prescale value
(2, 4,..., 256)
45
Tt1H
T1CKI High
Time
Synchronous, Prescaler = 1
0.5TCY + 20
——
ns
Must also meet
parameter 47
Synchronous,
Prescaler =
2,4,8
PIC16C925/926
15
——
ns
PIC16LC925/926
25
——
ns
Asynchronous
PIC16C925/926
30
——
ns
PIC16LC925/926
50
——
ns
46
Tt1L
T1CKI Low
Time
Synchronous, Prescaler = 1
0.5TCY + 20
——
ns
Must also meet
parameter 47
Synchronous,
Prescaler =
2,4,8
PIC16C925/926
15
——
ns
PIC16LC925/926
25
——
ns
Asynchronous
PIC16C925/926
30
——
ns
PIC16LC925/926
50
——
ns
47
Tt1P
T1CKI Input
Period
Synchronous
PIC16C925/926
Greater of:
30 or TCY + 40
N
——
ns
N = prescale value
(1, 2, 4, 8)
PIC16LC925/926
Greater of:
50 or TCY + 40
N
N = prescale value
(1, 2, 4, 8)
Asynchronous
PIC16C925/926
60
——
ns
PIC16LC925/926
100
——
ns
Ft1
Timer1 oscillator input frequency range
(oscillator enabled by setting bit T1OSCEN)
DC
—
200
kHz
48
TCKEZtmr1
Delay from external clock edge to timer increment
2Tosc
—
7Tosc
—
† Data in "Typ" column is at 5V, 25°C unless otherwise stated. These parameters are for design guidance only and are not
tested.



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