PIC16C554-04/P Microchip Technology, PIC16C554-04/P Datasheet - Page 35

• Manufacturer Part Number: PIC16C554-04/P
• Description: IC MCU OTP 512X14 18DIP
• Manufacturer: Microchip Technology
• Series: PIC® 16Cr

Specifications of PIC16C554-04/P

• Core Size: 8-Bit
• Program Memory Size: 896B (512 x 14)
• Core Processor: PIC
• Speed: 4MHz
• Peripherals: POR, WDT
• Number Of I /o: 13
• Program Memory Type: OTP
• Ram Size: 80 x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 18-DIP (0.300", 7.62mm)
• Controller Family/series: PIC16C
• No. Of I/o's: 13
• Ram Memory Size: 80Byte
• Cpu Speed: 4MHz
• No. Of Timers: 1
• Core: PIC
• Processor Series: PIC16C
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 20 MHz
• Data Ram Size: 80 B
• Data Rom Size: 80 B
• Number Of Programmable I/os: 13
• Number Of Timers: 8
• Operating Supply Voltage: 2.5 V to 5.5 V
• Mounting Style: Through Hole
• Height: 3.3 mm
• Length: 22.86 mm
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 3 V
• Width: 6.35 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: ISPICR1 - ADAPTER IN-CIRCUIT PROGRAMMING309-1059 - ADAPTER 18 ZIF BD W/18SO PLUGSDVA16XP180 - ADAPTER DEVICE FOR MPLAB-ICEAC164010 - MODULE SKT PROMATEII DIP/SOIC
• Eeprom Size: -
• Data Converters: -
• Connectivity: -
• Lead Free Status / Rohs Status: Details

6.2
6.2.1
The PIC16C55X can be operated in four different
oscillator options. The user can program two
configuration bits (FOSC1 and FOSC0) to select one of
these four modes:
• LP
• XT
• HS
• RC
6.2.2
In XT, LP or HS modes a crystal or ceramic resonator
is connected to the OSC1 and OSC2 pins to establish
oscillation (Figure 6-1). The PIC16C55X 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 to drive the OSC1 pin (Figure 6-2).
FIGURE 6-1:
FIGURE 6-2:
 2002 Microchip Technology Inc.
Note
Clock from
ext. system
Open
1:
2:
C1
C2
Oscillator Configurations
Low Power Crystal
Crystal/Resonator
High Speed Crystal/Resonator
Resistor/Capacitor
OSCILLATOR TYPES
CRYSTAL OSCILLATOR / CERAMIC
RESONATORS
A series resistor may be required for AT strip cut
crystals.
See Table 6-1 and Table 6-2 for recommended val-
ues of C1 and C2.
Note 1
XTAL
RS
OSC1
OSC2
CRYSTAL OPERATION
(OR CERAMIC
RESONATOR) (HS, XT OR
LP OSC
CONFIGURATION)
EXTERNAL CLOCK INPUT
OPERATION (HS, XT OR
LP OSC
CONFIGURATION)
OSC1
OSC2
RF
PIC16C55X
PIC16C55X
To internal logic
SLEEP
Preliminary
TABLE 6-1:
TABLE 6-2:
Ranges Characterized:
Note 1: Higher capacitance increases the stability
Note 1: Higher capacitance increases the stability
Mode
Mode
HS
XT
XT
HS
LP
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 with the resonator manufacturer for
appropriate values of external compo-
nents.
of the oscillator but also increases the
start-up time. These values are for design
guidance only. Rs may be required in HS
mode as well as XT mode to avoid over-
driving crystals with low-drive level specifi-
cation. Since each crystal has its own
characteristics, the user should consult
with the crystal manufacturer for appropri-
ate values of external components.
16.0 MHz
2.0 MHz
4.0 MHz
8.0 MHz
455 kHz
200 kHz
100 kHz
10 MHz
20 MHz
32 kHz
Freq
2 MHz
4 MHz
8 MHz
Freq
CAPACITOR SELECTION FOR
CERAMIC RESONATORS
(PRELIMINARY)
CAPACITOR SELECTION FOR
CRYSTAL OSCILLATOR
(PRELIMINARY)
22 - 100 pF
PIC16C55X
OSC1(C1)
68 - 100 pF
68 - 150 pF
15 - 68 pF
15 - 68 pF
10 - 68 pF
10 - 22 pF
OSC1(C1)
15 - 30 pF
15 - 30 pF
15 - 30 pF
15 - 30 pF
15 - 30 pF
15 - 30 pF
DS40143D-page 33
150 - 200 pF
22 - 100 pF
68 - 100 pF
OSC2(C2)
15 - 68 pF
15 - 68 pF
10 - 68 pF
10 - 22 pF
OSC2(C2)
15 - 30 pF
15 - 30 pF
15 - 30 pF
15 - 30 pF
15 - 30 pF
15 - 30 pF