
2009 Microchip Technology Inc.
DS40044G-page 145
PIC16F627A/628A/648A
TABLE 17-5:
PRECISION INTERNAL OSCILLATOR PARAMETERS
Legend:
TBD = To Be Determined.
* Characterized but not tested.
FIGURE 17-5:
CLKOUT AND I/O TIMING
Parameter
No.
Sym
Characteristic
Min
Typ
Max
Units
Conditions
F10
FIOSC Oscillator Center frequency
—4
—
MHz
F13
ΔIOSC
Oscillator Accuracy
3.9644.04
MHz VDD = 3.5 V, 25
°C
3.92
4
4.08
MHz 2.0V
≤ VDD ≤ 5.5V
0
°C ≤ TA ≤ +85°C
3.80
4
4.20
MHz 2.0V
≤ VDD ≤ 5.5V
-40
°C ≤ TA ≤ +85°C (IND)
-40
°C ≤ TA ≤ +125°C (EXT)
F14*
TIOSCST
Oscillator Wake-up from Sleep
start-up time
—6
8
μsVDD = 2.0V, -40°C to +85°C
—4
6
μsVDD = 3.0V, -40°C to +85°C
—3
5
μsVDD = 5.0V, -40°C to +85°C
OSC1
CLKOUT
I/O Pin
(input)
I/O Pin
(output)
Q4
Q1
Q2
Q3
10
13
14
17
20, 21
22
23
19
18
15
11
12
16
Old Value
New Value