PIC16C774/P Microchip Technology, PIC16C774/P Datasheet - Page 129

• Manufacturer Part Number: PIC16C774/P
• Description: IC MCU OTP 4KX14 A/D PWM 40DIP
• Manufacturer: Microchip Technology
• Series: PIC® 16Cr

Specifications of PIC16C774/P

• Core Size: 8-Bit
• Program Memory Size: 7KB (4K x 14)
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Core Processor: PIC
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Number Of I /o: 33
• Program Memory Type: OTP
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 10x12b
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 40-DIP (0.600", 15.24mm)
• Controller Family/series: PIC16C
• No. Of I/o's: 33
• Ram Memory Size: 256Byte
• Cpu Speed: 20MHz
• No. Of Timers: 3
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: ISPICR1 - ADAPTER IN-CIRCUIT PROGRAMMING444-1001 - DEMO BOARD FOR PICMICRO MCU
• Eeprom Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: PIC16C774-04/P; PIC16C774-20/P

FIGURE 12-2: CRYSTAL/CERAMIC
FIGURE 12-3: EXTERNAL CLOCK INPUT
TABLE 12-1
Ranges Tested:
XT
HS
Resonators Used:
455 kHz
2.0 MHz
4.0 MHz
8.0 MHz
16.0 MHz Murata Erie CSA16.00MX
1999 Microchip Technology Inc.
Note1:
Clock from
ext. system
Mode
All resonators used did not have built-in capacitors.
2:
3:
C1
C2
These values are for design guidance only. See
notes at bottom of page.
(1)
(1)
See
mended values of C1 and C2.
A series resistor (RS) may be required for
AT strip cut crystals.
RF varies with the crystal chosen.
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
XTAL
RS
Open
Freq
Table 12-1
(2)
RESONATOR OPERATION
(HS, XT OR LP
OSC CONFIGURATION)
OPERATION (HS OSC
CONFIGURATION)
CERAMIC RESONATORS
OSC1
OSC2
68 - 100 pF
15 - 68 pF
15 - 68 pF
10 - 68 pF
10 - 22 pF
and
OSC1
OSC2
OSC1
RF
Table 12-2
(3)
PIC16C77X
PIC16C77X
SLEEP
68 - 100 pF
15 - 68 pF
15 - 68 pF
10 - 68 pF
10 - 22 pF
for recom-
0.3%
0.5%
0.5%
0.5%
0.5%
Advance Information
OSC2
To
internal
logic
TABLE 12-2
Note 1: Recommended values of C1 and C2 are
Osc Type
200 kHz
20 MHz
32 kHz
1 MHz
4 MHz
8 MHz
HS
XT
LP
2: Higher capacitance increases the stability
3: Since each resonator/crystal has its own
4: Rs may be required in HS mode as well as
These values are for design guidance only. See
notes at bottom of page.
identical to the ranges tested
of oscillator but also increases the start-up
time.
characteristics, the user should consult the
resonator/crystal manufacturer for appropri-
ate values of external components.
XT mode to avoid overdriving crystals with
low drive level specification.
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
Crystal
20 MHz
32 kHz
1 MHz
4 MHz
4 MHz
8 MHz
Freq
CAPACITOR SELECTION FOR
CRYSTAL OSCILLATOR
Crystals Used
PIC16C77X
Cap. Range
47-68 pF
15-33 pF
15-33 pF
33 pF
15 pF
15 pF
15 pF
15 pF
C1
DS30275A-page 129
(Table
Cap. Range
± 20 PPM
± 20 PPM
± 50 PPM
± 50 PPM
± 30 PPM
± 30 PPM
47-68 pF
15-33 pF
15-33 pF
33 pF
15 pF
15 pF
15 pF
15 pF
12-1).
C2