Microchip Technology AC244045 Ficha De Dados
PIC16F72X/PIC16LF72X
DS41341E-page 224
© 2009 Microchip Technology Inc.
TABLE 23-1:
CLOCK OSCILLATOR TIMING REQUIREMENTS
Standard Operating Conditions (unless otherwise stated)
Operating temperature
Operating temperature
-40°C
≤ T
A
≤ +125°C
Param
No.
Sym.
Characteristic
Min.
Typ†
Max.
Units
Conditions
OS01
F
OSC
External CLKIN Frequency
(1)
DC
—
37
kHz
LP Oscillator mode
DC
—
4
MHz
XT Oscillator mode
DC
—
20
MHz
HS Oscillator mode
DC
—
20
MHz
EC Oscillator mode
Oscillator Frequency
(1)
—
32.768
—
kHz
LP Oscillator mode
0.1
—
4
MHz
XT Oscillator mode
1
—
20
MHz
HS Oscillator mode
DC
—
4
MHz
RC Oscillator mode
OS02
T
OSC
External CLKIN Period
(1)
27
—
∞
μs
LP Oscillator mode
250
—
∞
ns
XT Oscillator mode
50
—
∞
ns
HS Oscillator mode
50
—
∞
ns
EC Oscillator mode
Oscillator Period
(1)
—
30.5
—
μs
LP Oscillator mode
250
—
10,000
ns
XT Oscillator mode
50
—
1,000
ns
HS Oscillator mode
250
—
—
ns
RC Oscillator mode
OS03
T
CY
Instruction Cycle Time
(1)
200
T
CY
DC
ns
T
CY
= 4/F
OSC
OS04*
TosH,
TosL
TosL
External CLKIN High,
External CLKIN Low
External CLKIN Low
2
—
—
μs
LP oscillator
100
—
—
ns
XT oscillator
20
—
—
ns
HS oscillator
OS05*
TosR,
TosF
TosF
External CLKIN Rise,
External CLKIN Fall
External CLKIN Fall
0
—
∞
ns
LP oscillator
0
—
∞
ns
XT oscillator
0
—
∞
ns
HS oscillator
*
These parameters are characterized but not tested.
†
Data in “Typ” column is at 3.0V, 25°C unless otherwise stated. These parameters are for design guidance only and are not
tested.
tested.
Note 1: Instruction cycle period (T
CY
) equals four times the input oscillator time base period. All specified values 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 con-
sumption. 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.
Exceeding these specified limits may result in an unstable oscillator operation and/or higher than expected current con-
sumption. 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.