PIC16C770-I/P Microchip Technology, PIC16C770-I/P Datasheet - Page 121

• Manufacturer Part Number: PIC16C770-I/P
• Description: IC MCU CMOS A/D 2K 20MHZ 20-DIP
• Manufacturer: Microchip Technology
• Series: PIC® 16Cr

Specifications of PIC16C770-I/P

• Core Size: 8-Bit
• Program Memory Size: 3.5KB (2K x 14)
• Oscillator Type: Internal
• Core Processor: PIC
• Speed: 20MHz
• Connectivity: I²C, SPI
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 15
• Program Memory Type: OTP
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 6x12b
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-DIP (0.300", 7.62mm)
• Controller Family/series: PIC16C
• No. Of I/o's: 16
• Ram Memory Size: 256Byte
• Cpu Speed: 20MHz
• No. Of Timers: 3
• No. Of: RoHS Compliant
• Core: PIC
• Processor Series: PIC16C
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 20 MHz
• Data Ram Size: 256 B
• Data Rom Size: 256 B
• On-chip Adc: 6 bit
• Number Of Programmable I/os: 16
• Number Of Timers: 3 bit
• Operating Supply Voltage: 2.5 V to 5.5 V
• Mounting Style: Through Hole
• Height: 3.3 mm
• Interface Type: I2C, SPI, SSP
• Length: 26.16 mm
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 4 V
• Width: 6.35 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: DVA16XP200 - ADAPTER ICE 20DIP/SOIC/SSOPAC164028 - MODULE SKT PROMATEII 20SOIC/DIP
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details
• Other names: PIC16C770I/P

12.2
12.2.1
The PIC16C717/770/771 can be operated in eight dif-
ferent Oscillator modes. The user can program three
configuration bits (FOSC<2:0>) to select one of these
eight modes:
• LP
• XT
• HS
• ER
• INTRC Internal 4 MHz (with and without
• EC
12.2.2
In LP, XT or HS modes, a crystal or ceramic resonator
is connected to the OSC1/CLKIN and OSC2/CLKOUT
pins to establish
PIC16C717/770/771 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 spec-
ifications.
FIGURE 12-1:
2002 Microchip Technology Inc.
Note1: See Table 12-1 and Table 12-2 for recom-
2:
3:
C1(1)
C2(1)
Oscillator Configurations
Low Power Crystal
Crystal/Resonator
High Speed Crystal/Resonator
External Resistor (with and without
CLKOUT)
CLKOUT)
External Clock
mended values of C1 and C2.
A series resistor (RS) may be required for
AT strip cut crystals.
RF varies with the Crystal mode chosen.
LP, XT AND HS MODES
OSCILLATOR TYPES
XTAL
RS(2)
OSC1
OSC2
oscillation (Figure 12-1).
CRYSTAL/CERAMIC
RESONATOR OPERATION
(HS, XT OR LP
OSC CONFIGURATION)
RF(3)
PIC16C717/770/771
SLEEP
To
internal
logic
The
TABLE 12-1:
TABLE 12-2:
12.2.3
In applications where the clock source is external, the
PIC16C717/770/771 should be programmed to select
the EC (External Clock) mode. In this mode, the RA6/
OSC2/CLKOUT pin is available as an I/O pin. See
Figure 12-2 for illustration.
FIGURE 12-2:
XT
HS
Note 1: Since each resonator/crystal has its own
Osc Type
Mode
Clock from
ext. system
PIC16C717/770/771
These values are for design guidance only. See
All resonators used did not have built-in capacitors.
notes at bottom of page.
XT
HS
LP
2: Higher capacitance increases the stability of
These values are for design guidance only. See
notes at bottom of page.
characteristics, the user should consult the
resonator/crystal manufacturer for appropri-
ate values of external components.
oscillator but also increases the start-up
time.
EC MODE
455 kHz
2.0 MHz
4.0 MHz
8.0 MHz
16.0 MHz
I/O
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
Ranges Tested:
EXTERNAL CLOCK INPUT
OPERATION (EC OSC
CONFIGURATION)
68 - 100 pF
15 - 68 pF
15 - 68 pF
10 - 68 pF
10 - 22 pF
Cap. Range
OSC1
RA6
47-68 pF
15-33 pF
15-33 pF
OSC1
33 pF
15 pF
15 pF
15 pF
15 pF
C1
PIC16C717/770/771
DS41120B-page 119
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
OSC2
33 pF
15 pF
15 pF
15 pF
15 pF
C2