PIC16LC62B-04/SS Microchip Technology, PIC16LC62B-04/SS Datasheet - Page 56

• Manufacturer Part Number: PIC16LC62B-04/SS
• Description: IC MCU OTP 2KX14 PWM 28SSOP
• Manufacturer: Microchip Technology
• Series: PIC® 16Cr

Specifications of PIC16LC62B-04/SS

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 4MHz
• Connectivity: I²C, SPI
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 22
• Program Memory Size: 3.5KB (2K x 14)
• Program Memory Type: OTP
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 2.5 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 28-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -

PIC16C62B/72A
DS35008B-page 56
10.2
10.2.1
The PIC16CXXX can be operated in four different oscil-
lator modes. The user can program two configuration
bits (FOSC1 and FOSC0) to select one of these four
modes:
• LP
• XT
• HS
• RC
10.2.2
In XT, LP or HS modes, a crystal or ceramic resonator
is connected to the OSC1/CLKIN and OSC2/CLKOUT
pins to establish oscillation (Figure 10-2).
PIC16CXXX oscillator design requires the use of a par-
allel cut crystal. Use of a series cut crystal may give a
frequency out of the crystal manufacturers specifica-
tions. When in XT, LP or HS modes, the device can use
an external clock source to drive the OSC1/CLKIN pin
(Figure 10-3).
FIGURE 10-2: CRYSTAL/CERAMIC
FIGURE 10-3: EXTERNAL CLOCK INPUT
Note1: See Table 10-1 and Table 10-2 for recom-
Clock from
ext. system
2:
3:
C1
C2
Oscillator Configurations
CRYSTAL OSCILLATOR/CERAMIC
RESONATORS
OSCILLATOR TYPES
(1)
(1)
Low Power Crystal
Crystal/Resonator
High Speed Crystal/Resonator
Resistor/Capacitor
mended values of C1 and C2.
A series resistor (RS) may be required for
AT strip cut crystals.
RF varies with the crystal chosen.
XTAL
RS
Open
(2)
RESONATOR OPERATION
(HS, XT OR LP
OSC CONFIGURATION)
OPERATION (HS, XT OR LP
OSC CONFIGURATION)
OSC1
OSC2
OSC1
OSC2
RF
(3)
PIC16CXXX
SLEEP
PIC16CXXX
To
internal
logic
Preliminary
The
TABLE 10-1
TABLE 10-2
Ranges Tested:
XT
HS
Resonators Used:
455 kHz
2.0 MHz
4.0 MHz
8.0 MHz
16.0 MHz Murata Erie CSA16.00MX
Note 1:
Osc Type
Mode
200 kHz
20 MHz
32 kHz
1 MHz
4 MHz
8 MHz
Resonators did not have built-in capacitors.
HS
XT
LP
2: Since each resonator/crystal has its own charac-
3: Rs may be required in HS mode, as well as XT
4: Oscillator performance should be verified when
These values are for design guidance only. See
notes at bottom of page.
These values are for design guidance only. See
notes at bottom of page.
Higher capacitance increases the stability of the
oscillator, but also increases the start-up time.
teristics, the user should consult the resona-
tor/crystal manufacturer for appropriate values of
external components.
mode, to avoid overdriving crystals with low drive
level specification.
migrating between devices (including
PIC16C62A to PIC16C62B and PIC16C72 to
PIC16C72A)
455 kHz
2.0 MHz
4.0 MHz
8.0 MHz
16.0 MHz
Panasonic EFO-A455K04B
Murata Erie CSA2.00MG
Murata Erie CSA4.00MG
Murata Erie CSA8.00MT
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
Freq
Crystal
20 MHz
32 kHz
1 MHz
4 MHz
4 MHz
8 MHz
Freq
CERAMIC RESONATORS
CAPACITOR SELECTION FOR
CRYSTAL OSCILLATOR
Crystals Used
1999 Microchip Technology Inc.
68 - 100 pF
15 - 68 pF
15 - 68 pF
10 - 68 pF
10 - 22 pF
Cap. Range
47-68 pF
15-33 pF
15-33 pF
OSC1
33 pF
15 pF
15 pF
15 pF
15 pF
C1
68 - 100 pF
15 - 68 pF
15 - 68 pF
10 - 68 pF
10 - 22 pF
Cap. Range
± 20 PPM
± 20 PPM
± 50 PPM
± 50 PPM
± 30 PPM
± 30 PPM
47-68 pF
15-33 pF
15-33 pF
0.3%
0.5%
0.5%
0.5%
0.5%
OSC2
33 pF
15 pF
15 pF
15 pF
15 pF
C2