PIC16C923-04I/CL Microchip Technology, PIC16C923-04I/CL Datasheet - Page 151

• Manufacturer Part Number: PIC16C923-04I/CL
• Description: 8-Bit CMOS Microcontroller with LCD Driver
• Manufacturer: Microchip Technology

FIGURE 17-6: TIMER0 AND TIMER1 EXTERNAL CLOCK TIMINGS
TABLE 17-7: TIMER0 AND TIMER1 EXTERNAL CLOCK REQUIREMENTS
Param
1997 Microchip Technology Inc.
*
†
No.
40*
41*
42*
45*
46*
47*
48
Refer to Figure 17-2 for load conditions.
RC0/T1OSO/T1CKI
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.
TCKEZtmr1 Delay from external clock edge to timer increment
Tt0H
Tt1H
Sym
Tt0L
Tt0P
Tt1L
Tt1P
Ft1
RA4/T0CKI
TMR0 or
TMR1
Characteristic
T0CKI High Pulse Width
T0CKI Low Pulse Width
T0CKI Period
T1CKI High Time
T1CKI Low Time
T1CKI input period Synchronous
Timer1 oscillator input frequency range
(oscillator enabled by setting bit T1OSCEN)
Synchronous, Prescaler = 1
Synchronous,
Prescaler =
2,4,8
Asynchronous
Synchronous, Prescaler = 1
Synchronous,
Prescaler =
2,4,8
Asynchronous
Asynchronous
No Prescaler
With Prescaler
No Prescaler
With Prescaler
No Prescaler
With Prescaler
PIC16C923/924
PIC16LC923/924
PIC16C923/924
PIC16LC923/924
PIC16C923/924
PIC16LC923/924
PIC16C923/924
PIC16LC923/924
PIC16C923/924
PIC16LC923/924
PIC16C923/924
PIC16LC923/924
40
45
42
47
Greater of:
20 or T
Greater of:
Greater of:
30
50
0.5T
0.5T
0.5T
0.5T
T
OR
OR
CY
CY
2Tosc
Min
100
CY
CY
CY
CY
DC
41
10
10
15
25
30
50
15
25
30
50
T
T
60
46
N
+ 40
+ 40
CY
CY
+ 20
+ 20
+ 20
+ 20
N
N
+ 40
+ 40
Typ†
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
PIC16C9XX
7Tosc
Max
200
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
48
Units Conditions
kHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
—
DS30444E - page 151
Must also meet
parameter 42
Must also meet
parameter 42
N = prescale value
(2, 4, ..., 256)
Must also meet
parameter 47
Must also meet
parameter 47
N = prescale value
(1, 2, 4, 8)
N = prescale value
(1, 2, 4, 8)