PIC16LC72 Microchip Technology, PIC16LC72 Datasheet - Page 104

• Manufacturer Part Number: PIC16LC72
• Description: 8-Bit CMOS Microcontrollers
• Manufacturer: Microchip Technology

PIC16C72 Series
FIGURE 14-22: TYPICAL XTAL STARTUP
FIGURE 14-23: TYPICAL XTAL STARTUP
DS39016A-page 104
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
2.5
7
6
5
4
3
2
1
4.0
3.0
200 kHz, 15 pF/15 pF
TIME vs. V
TIME vs. V
25 C)
8 MHz, 33 pF/33 pF
4.5
3.5
V
32 kHz, 33 pF/33 pF
DD
4.0
V
DD
(Volts)
5.0
(Volts)
DD
DD
4.5
20 MHz, 33 pF/33 pF
20 MHz, 15 pF/15 pF
8 MHz, 15 pF/15 pF
(LP MODE, 25 C)
(HS MODE,
5.0
5.5
5.5
6.0
6.0
PIC16C72
Preliminary
FIGURE 14-24: TYPICAL XTAL STARTUP
TABLE 14-2
Osc Type
Crystals
200 kHz
20 MHz
32 kHz
1 MHz
4 MHz
8 MHz
Used
70
60
50
40
30
20
10
HS
0
LP
XT
2.5
3.0
Epson C-001R32.768K-A
STD XTL 200.000KHz
ECS ECS-10-13-1
ECS ECS-40-20-1
EPSON CA-301 8.000M-C
EPSON CA-301 20.000M-C
200 kHz
200 kHz
20 MHz
Crystal
32 kHz
1 MHz
4 MHz
4 MHz
8 MHz
Freq
TIME vs. V
CAPACITOR SELECTION
FOR CRYSTAL
OSCILLATORS
3.5
V
4.0
DD
1998 Microchip Technology Inc.
Cap. Range
(Volts)
47-68 pF
15-33 pF
15-33 pF
33 pF
15 pF
15 pF
15 pF
15 pF
DD
4.5
C1
(XT MODE, 25 C)
200 kHz, 68 pF/68 pF
200 kHz, 47 pF/47 pF
1 MHz, 15 pF/15 pF
4 MHz, 15 pF/15 pF
5.0
Cap. Range
47-68 pF
15-33 pF
15-33 pF
5.5
20 PPM
20 PPM
50 PPM
50 PPM
30 PPM
30 PPM
33 pF
15 pF
15 pF
15 pF
15 pF
C2
6.0