PIC16F688

Manufacturer Part NumberPIC16F688
ManufacturerMicrochip Technology Inc.
PIC16F688 datasheet
 
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Page 155/202:

AC Characteristics: (Industrial, Extended)

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14.8
AC Characteristics: PIC16F688 (Industrial, Extended)
FIGURE 14-4:
CLOCK TIMING
Q4
OSC1/CLKIN
OSC2/CLKOUT
(LP, XT, HS Modes)
OSC2/CLKOUT
(CLKOUT Mode)
TABLE 14-1:
CLOCK OSCILLATOR TIMING REQUIREMENTS
Standard Operating Conditions (unless otherwise stated)
-40°C ≤ T
Operating temperature
Param
Sym
Characteristic
No.
OS01
F
External CLKIN Frequency
OSC
(1)
Oscillator Frequency
OS02
T
External CLKIN Period
OSC
(1)
Oscillator Period
OS03
T
Instruction Cycle Time
CY
OS04*
TosH,
External CLKIN High,
TosL
External CLKIN Low
OS05*
TosR,
External CLKIN Rise,
TosF
External CLKIN Fall
*
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 1:
Instruction cycle period (T
CY
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 OSC1 pin. When an external clock input is used, the “max” cycle time limit is “DC” (no clock) for
all devices.
© 2007 Microchip Technology Inc.
Q1
Q2
Q3
OS02
OS04
OS04
OS03
≤ +125°C
A
Min
Typ†
Max
(1)
DC
37
DC
4
DC
20
DC
20
32.768
0.1
4
1
20
DC
4
(1)
27
250
50
50
30.5
250
10,000
50
1,000
250
(1)
200
T
DC
CY
2
100
20
0
0
0
) equals four times the input oscillator time base period. All specified values are
PIC16F688
Q4
Q1
Units
Conditions
kHz
LP Oscillator mode
MHz
XT Oscillator mode
MHz
HS Oscillator mode
MHz
EC Oscillator mode
kHz
LP Oscillator mode
MHz
XT Oscillator mode
MHz
HS Oscillator mode
MHz
RC Oscillator mode
μs
LP Oscillator mode
ns
XT Oscillator mode
ns
HS Oscillator mode
ns
EC Oscillator mode
μs
LP Oscillator mode
ns
XT Oscillator mode
ns
HS Oscillator mode
ns
RC Oscillator mode
ns
T
= 4/F
CY
OSC
μs
LP oscillator
ns
XT oscillator
ns
HS oscillator
ns
LP oscillator
ns
XT oscillator
ns
HS oscillator
DS41203D-page 153