PIC16C54B-04I/SO Microchip Technology, PIC16C54B-04I/SO Datasheet - Page 33

• Manufacturer Part Number: PIC16C54B-04I/SO
• Description: MICRO CTRL 512 4MHZ OTP 18SOIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Cr

Specifications of PIC16C54B-04I/SO

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 4MHz
• Peripherals: POR, WDT
• Number Of I /o: 12
• Program Memory Size: 768B (512 x 12)
• Program Memory Type: OTP
• Ram Size: 25 x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 18-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Request inventory verification / Request inventory verification
• Eeprom Size: -
• Data Converters: -
• Connectivity: -

7.2
7.2.1
PIC16C5Xs can be operated in four different oscillator
modes. The user can program two configuration bits
(FOSC1:FOSC0) to select one of these four modes:
• LP:
• XT:
• HS:
• RC:
7.2.2
In XT, LP or HS modes, a crystal or ceramic resonator
is connected to the OSC1/CLKIN and OSC2/CLKOUT
pins
PIC16C5X 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, LP or HS modes, the
device can have an external clock source drive the
OSC1/CLKIN pin (Figure 7-4).
FIGURE 7-3:
Note 1: See Capacitor Selection tables for
1998 Microchip Technology Inc.
Note:
to
2: A series resistor (RS) may be required for
3: RF varies with the crystal chosen (approx.
C2
C1
Oscillator Configurations
CRYSTAL OSCILLATOR / CERAMIC
RESONATORS
OSCILLATOR TYPES
(1)
(1)
recommended values of C1 and C2.
AT strip cut crystals.
value = 10 M ).
Low Power Crystal
Crystal/Resonator
High Speed Crystal/Resonator
Resistor/Capacitor
Not all oscillator selections available for all
parts. See Section 7.1.
establish
RS
XTAL
(2)
CRYSTAL OPERATION
(OR CERAMIC RESONATOR)
(HS, XT OR LP OSC
CONFIGURATION)
OSC1
OSC2
oscillation
RF
(3)
(Figure 7-3).
PIC16C5X
To internal
SLEEP
logic
The
Preliminary
FIGURE 7-4:
TABLE 7-1:
TABLE 7-2:
Note 1: For V
Clock from
ext. system
Note:
Note:
Type
Type
Osc
Osc
HS
HS
XT
XT
LP
2: These values are for design guidance only.
recommended.
Rs may be required in HS mode as well as
XT mode to avoid overdriving crystals with
low drive level specification. Since each
crystal has its own characteristics, the user
should consult the crystal manufacturer for
appropriate values of external components.
Resonator
These values are for design guidance only.
Since each resonator has its own charac-
teristics, the user should consult the reso-
nator manufacturer for appropriate values
of external components.
Resonator
If you change from this device to
another device, please verify oscillator
characteristics in your application.
16.0 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
20 MHz
1 MHz
2 MHz
4 MHz
4 MHz
8 MHz
Open
Freq
Freq
DD
EXTERNAL CLOCK INPUT
OPERATION (HS, XT OR LP
OSC CONFIGURATION)
CAPACITOR SELECTION
FOR CERAMIC RESONATORS
- PIC16C5X, PIC16CR5X
CAPACITOR SELECTION
FOR CRYSTAL OSCILLATOR
- PIC16C5X, PIC16CR5X
> 4.5V, C1 = C2
(1)
Cap. Range
Cap.Range
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
PIC16C5X
15 pF
OSC2
OSC1
C1
C1
PIC16C5X
DS30453B-page 33
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