PIC12C672T-04I/SM Microchip Technology, PIC12C672T-04I/SM Datasheet - Page 54

• Manufacturer Part Number: PIC12C672T-04I/SM
• Description: IC MCU OTP 2KX14 A/D 8-SOIJ
• Manufacturer: Microchip Technology
• Series: PIC® 12Cr

Specifications of PIC12C672T-04I/SM

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 4MHz
• Peripherals: POR, WDT
• Number Of I /o: 5
• Program Memory Size: 3.5KB (2K x 14)
• Program Memory Type: OTP
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 4x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 8-SOIC (5.3mm Width), 8-SOP, 8-SOEIAJ
• For Use With: XLT08SO-1 - SOCKET TRANSITION 8SOIC 150/208AC164312 - MODULE SKT FOR PM3 16SOIC309-1048 - ADAPTER 8-SOIC TO 8-DIP309-1047 - ADAPTER 8-SOIC TO 8-DIP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Connectivity: -

PIC12C67X
9.2
9.2.1
The PIC12C67X can be operated in seven different
oscillator modes. The user can program three
configuration bits (F
seven modes:
• LP:
• HS:
• XT:
• INTRC*:
• EXTRC*: External Resistor/Capacitor
*Can be configured to support CLKOUT
9.2.2
In XT, HS or LP modes, a crystal or ceramic resonator
is connected to the GP5/OSC1/CLKIN and GP4/OSC2
pins
PIC12C67X oscillator design requires the use of a
parallel cut crystal. Use of a series cut crystal may give
a frequency out of the crystal manufacturers
specifications. When in XT, HS or LP modes, the
device can have an external clock source drive the
GP5/OSC1/CLKIN pin (Figure 9-2).
FIGURE 9-1:
FIGURE 9-2:
DS30561B-page 54
Clock from
ext. system
Note 1: See Capacitor Selection tables for
to
2: A series resistor (RS) may be required for AT
3: RF varies with the oscillator mode selected
C1
C2
Oscillator Configurations
CRYSTAL OSCILLATOR / CERAMIC
RESONATORS
OSCILLATOR TYPES
(1)
(1)
recommended values of C1 and C2.
strip cut crystals.
(approx. value = 10 M ).
establish
Low Power Crystal
High Speed Crystal/Resonator
Crystal/Resonator
Internal 4 MHz Oscillator
Open
RS
XTAL
(2)
CRYSTAL OPERATION
(OR CERAMIC RESONATOR)
(XT, HS OR LP OSC
CONFIGURATION)
EXTERNAL CLOCK INPUT
OPERATION (XT, HS OR LP
OSC CONFIGURATION)
OSC
OSC2
OSC1
oscillation
<2:0>) to select one of these
OSC2
OSC1
RF
(3)
(Figure 9-1).
PIC12C67X
PIC12C67X
SLEEP
To internal
logic
The
TABLE 9-1:
TABLE 9-2:
These values are for design guidance only. Since
each resonator has its own characteristics, the user
should consult the resonator manufacturer for
appropriate values of external components.
Note 1: For V
These values are for design guidance only. Rs may
be required in HS mode, as well as XT mode, to
avoid overdriving crystals with low drive level specifi-
cation. Since each crystal has its own characteris-
tics, the user should consult the crystal manufacturer
for appropriate values of external components.
Type
Type
Osc
Osc
HS
HS
XT
LP
XT
recommended.
Resonator
Resonator
10.0 MHz
32 kHz
455 kHz
2.0 MHz
4.0 MHz
4.0 MHz
8.0 MHz
100 kHz
200 kHz
100 kHz
200 kHz
455 kHz
10 MHz
1 MHz
2 MHz
4 MHz
4 MHz
8 MHz
Freq
Freq
DD
> 4.5V, C1 = C2
CAPACITOR SELECTION
FOR CERAMIC RESONATORS
- PIC12C67X
CAPACITOR SELECTION
FOR CRYSTAL OSCILLATOR
- PIC12C67X
(1)
Cap. Range
Cap. Range
1999 Microchip Technology Inc.
22-100 pF
15-68 pF
15-68 pF
15-68 pF
10-68 pF
10-22 pF
15-30 pF
15-30 pF
15-30 pF
15-30 pF
15-30 pF
15-30 pF
15-30 pF
15-47 pF
15-30 pF
15-30 pF
15-30 pF
15 pF
C1
C1
30 pF is
Cap. Range
Cap. Range
200-300 pF
100-200 pF
22-100 pF
15-100 pF
15-68 pF
15-68 pF
15-68 pF
10-68 pF
10-22 pF
30-47 pF
15-82 pF
15-30 pF
15-30 pF
15-47 pF
15-30 pF
15-30 pF
15-30 pF
15 pF
C2
C2