PIC16F88

Manufacturer Part NumberPIC16F88
ManufacturerMicrochip Technology Inc.
PIC16F88 datasheet
 
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FIGURE 18-4:
EXTERNAL CLOCK TIMING
Q4
OSC1
CLKO
TABLE 18-3:
EXTERNAL CLOCK TIMING REQUIREMENTS
Parameter
Sym
Characteristic
No.
F
External CLKI Frequency
OSC
(Note 1)
Oscillator Frequency
(Note 1)
1
T
External CLKI Period
OSC
(Note 1)
Oscillator Period
(Note 1)
2
T
Instruction Cycle Time
CY
(Note 1)
3
TosL,
External Clock in (OSC1) High or
TosH
Low Time
4
TosR,
External Clock in (OSC1) Rise or
TosF
Fall Time
† Data in “Typ” column is at 5V, 25°C unless otherwise stated. These parameters are for design guidance
only and are not tested.
Note 1:
Instruction cycle period (T
CY
are based on 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 consumption. All devices are tested to operate at “min.”
values with an external clock applied to the OSC1/CLKI pin. When an external clock input is used, the
“max.” cycle time limit is “DC” (no clock) for all devices.
 2005 Microchip Technology Inc.
Q1
Q2
Q3
1
3
3
2
Min
Typ†
Max
DC
1
DC
20
DC
32
DC
4
0.1
4
4
20
5
200
1000
50
5
250
250
10,000
50
250
5
200
T
DC
CY
500
2.5
15
25
50
15
) equals four times the input oscillator time base period. All specified values
PIC16F87/88
Q4
Q1
4
4
Units
Conditions
MHz XT and RC Oscillator mode
MHz HS Oscillator mode
kHz
LP Oscillator mode
MHz RC Oscillator mode
MHz XT Oscillator mode
MHz
HS Oscillator mode
kHz
LP Oscillator mode
ns
XT and RC Oscillator
modes
ns
HS Oscillator mode
ms
LP Oscillator mode
ns
RC Oscillator mode
ns
XT Oscillator mode
ns
HS Oscillator mode
ms
LP Oscillator mode
ns
T
= 4/F
CY
OSC
ns
XT oscillator
ms
LP oscillator
ns
HS oscillator
ns
XT oscillator
ns
LP oscillator
ns
HS oscillator
DS30487C-page 179