PIC17C752-08/CL MICROCHIP [Microchip Technology], PIC17C752-08/CL Datasheet - Page 16

• Manufacturer Part Number: PIC17C752-08/CL
• Description: High-Performance 8-Bit CMOS EPROM Microcontrollers with 10-bit A/D
• Manufacturer: MICROCHIP [Microchip Technology]

PIC17C7XX
FIGURE 4-2:
TABLE 4-1:
DS30289A-page 16
Higher capacitance increases the stability of the oscillator
but also increases the start-up time. These values are for
design guidance only. Since each resonator has its own
characteristics, the user should consult the resonator manu-
facturer for appropriate values of external components.
Note 1: These values include all board capacitances
Resonators Used:
455 kHz
2.0 MHz
4.0 MHz
8.0 MHz
16.0 MHz Murata Erie CSA16.00MX
Oscillator
See
C1 and C2.
Note 1: A series resistor (Rs) may be required for
Type
Resonators used did not have built-in capacitors.
XT
LF
Table 4-1
on this pin. Actual capacitor value depends
on board capacitance
C1
C2
AT strip cut crystals.
Panasonic EFO-A455K04B
Murata Erie CSA2.00MG
Murata Erie CSA4.00MG
Murata Erie CSA8.00MT
and
Note1
XTAL
Frequency
Resonator
CRYSTAL OR CERAMIC
RESONATOR OPERATION (XT
OR LF OSC CONFIGURATION)
CAPACITOR SELECTION
FOR CERAMIC
RESONATORS
16.0 MHz
455 kHz
2.0 MHz
4.0 MHz
8.0 MHz
Table 4-2
OSC1
OSC2
for recommended values of
PIC17CXXX
RF
Capacitor Range
33 - 100 pF
33 - 100 pF
C1 = C2
15 - 68 pF
10 - 33 pF
22 - 68 pF
SLEEP
To internal
logic
(1)
0.3%
0.5%
0.5%
0.5%
0.5%
FIGURE 4-3:
TABLE 4-2:
Higher capacitance increases the stability of the oscillator
but also increases the start-up time and the oscillator cur-
rent. These values are for design guidance only. R
required in XT mode to avoid overdriving the crystals with
low drive level specification. Since each crystal has its own
characteristics, the user should consult the crystal manufac-
turer for appropriate values for external components.
Note 1: For V
Crystals Used:
32.768 kHz
1.0 MHz
2.0 MHz
4.0 MHz
8.0 MHz
16.0 MHz
25 MHz
32 MHz
Type
Osc
XT
LF
C2
C3
C1
0.1 F
To filter the fundamental frequency
2: R
3: These values include all board capacitances
Where f = tank circuit resonant frequency. This should be
midway between the fundamental and the 3rd overtone
frequencies of the crystal.
C3 handles current during charging of tank circuit.
L*C2
1
mended.
bination of 15/15 pF.
on this pin. Actual capacitor value depends
on board capacitance
32 MHz
S
32 kHz
8 MHz
16 MHz
25 MHz
= (2 f)
1 MHz
2 MHz
2 MHz
4 MHz
of 330 is required for a capacitor com-
Freq
Epson C-001R32.768K-A
ECS-10-13-1
ECS-20-20-1
ECS-40-20-1
ECS ECS-80-S-4
ECS-80-18-1
ECS-160-20-1
CTS CTS25M
CRYSTEK HF-2
DD
CRYSTAL OPERATION,
OVERTONE CRYSTALS (XT
OSC CONFIGURATION)
CAPACITOR SELECTION FOR
CRYSTAL OSCILLATOR
OSC1
OSC2
2
> 4.5V, C1 = C2 30 pF is recom-
(1)
(2)
(3)
100-150 pF
47-100 pF
10-33 pF
10-33 pF
15-68 pF
15-47 pF
15-47 pF
1998 Microchip Technology Inc.
C1
10 pF
TBD
PIC17CXXX
(3)
100-150 pF
47-100 pF
10-33 pF
10-33 pF
15-68 pF
15-47 pF
15-47 pF
C2
10 pF
TBD
TBD
SLEEP
S
20 PPM
50 PPM
50 PPM
50 PPM
50 PPM
50 PPM
50 PPM
(3)
may be