PIC16F873-20/SP Microchip Technology Inc., PIC16F873-20/SP Datasheet - Page 124
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PIC16F873-20/SP
Manufacturer Part Number
PIC16F873-20/SP
Description
28 PIN, 7 KB FLASH, 192 RAM, 22 I/O
Manufacturer
Microchip Technology Inc.
Datasheet
1.PIC16F873-20SP.pdf
(218 pages)
Specifications of PIC16F873-20/SP
A/d Inputs
5-Channel, 10-Bit
Comparators
2
Cpu Speed
5 MIPS
Eeprom Memory
128 Bytes
Input Output
22
Interface
I2C/SPI/USART
Memory Type
Flash
Number Of Bits
8
Package Type
28-pin SPDIP
Programmable Memory
7K Bytes
Ram Size
192 Bytes
Speed
20 MHz
Timers
2-8-bit, 1-16-bit
Voltage, Range
2-5.5 V
Lead Free Status / Rohs Status
RoHS Compliant part
Electrostatic Device
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
PIC16F873-20/SP
Manufacturer:
MIC
Quantity:
20 000
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PIC16F87X
TABLE 12-2:
DS30292C-page 122
Osc Type
These values are for design guidance only.
See notes following this table.
200 kHz
20 MHz
32 kHz
1 MHz
4 MHz
8 MHz
Note 1: Higher capacitance increases the stability
XT
HS
LP
2: Since each resonator/crystal has its own
3: R
4: When migrating from other PICmicro
EPSON CA-301 8.000M-C
of oscillator, but also increases the start-
up time.
characteristics, the user should consult the
resonator/crystal manufacturer for appro-
priate values of external components.
as XT mode, to avoid overdriving crystals
with low drive level specification.
devices, oscillator performance should be
verified.
EPSON CA-301 20.000M-
Epson C-001R32.768K-A
200 kHz
200 kHz
Crystal
20 MHz
32 kHz
s
1 MHz
4 MHz
4 MHz
8 MHz
STD XTL 200.000KHz
Freq.
may be required in HS mode, as well
ECS ECS-10-13-1
ECS ECS-40-20-1
CAPACITOR SELECTION FOR
CRYSTAL OSCILLATOR
Crystals Used
C
Cap. Range
47-68 pF
15-33 pF
15-33 pF
33 pF
15 pF
15 pF
15 pF
15 pF
C1
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
C2
12.2.3
For timing insensitive applications, the “RC” device
option offers additional cost savings. The RC oscillator
frequency is a function of the supply voltage, the resis-
tor (R
ing temperature. In addition to this, the oscillator
frequency will vary from unit to unit due to normal pro-
cess parameter variation. Furthermore, the difference
in lead frame capacitance between package types will
also affect the oscillation frequency, especially for low
C
variation due to tolerance of external R and C compo-
nents used. Figure 12-3 shows how the R/C combina-
tion is connected to the PIC16F87X.
FIGURE 12-3:
Recommended values:
EXT
C
V
R
EXT
SS
EXT
EXT
values. The user also needs to take into account
V
DD
) and capacitor (C
RC OSCILLATOR
F
OSC
/4
RC OSCILLATOR MODE
OSC1
OSC2/CLKOUT
3 k
C
2001 Microchip Technology Inc.
EXT
EXT
) values, and the operat-
> 20pF
R
EXT
100 k
PIC16F87X
Internal
Clock
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