Microchip Technology AC244045 Data Sheet

Page of 302
© 2009 Microchip Technology Inc.
DS41341E-page 225
PIC16F72X/PIC16LF72X
TABLE 23-2:
OSCILLATOR PARAMETERS 
FIGURE 23-7:
CLKOUT AND I/O TIMING     
Standard Operating Conditions (unless otherwise stated)
Operating Temperature 
-40°C 
≤ T
A
 
≤ +125°C
Param 
No.
Sym.
Characteristic
Freq.
Tolerance
Min.
Typ†
Max.
Units
Conditions
OS08
HF
OSC
Internal Calibrated HFINTOSC 
Frequency
(2)
±2%
16.0
MHz
0°C 
≤ T
A
 
≤ +85°C, 
V
DD
 
≥ 2.5V
±5%
16.0
MHz
-40°C 
≤ T
A
 
≤ +125°C
OS08A MF
OSC
Internal Calibrated MFINTOSC 
Frequency
(2)
±2%
500
kHz
0°C 
≤ T
A
 
≤ +85°C
V
DD
 
≥ 2.5V
±5%
500
10
kHz
-40°C 
≤ T
A
 
≤ +125°C
OS10*
T
IOSC
 
ST
HFINTOSC Wake-up from Sleep 
Start-up Time
5
8
μs
MFINTOSC Wake-up from Sleep 
Start-up Time
20
30
μs
*
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.
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 
consumption. All devices are tested to operate at “min” values with an external clock applied to the OSC1 pin. When an 
external clock input is used, the “max” cycle time limit is “DC” (no clock) for all devices.
2: To ensure these oscillator frequency tolerances, V
DD
 and V
SS
 must be capacitively decoupled as close to the device as 
possible. 0.1
μF and 0.01 μF values in parallel are recommended.
3: By design.
F
OSC
CLKOUT
I/O pin
(Input)
I/O pin
(Output)
Q4
Q1
Q2
Q3
OS11
OS19
OS13
OS15
OS18, OS19
OS20
OS21
OS17
OS16
OS14
OS12
OS18
Old Value
New Value
Write
Fetch
Read
Execute
Cycle