PIC16F872-I/SP Microchip Technology Inc., PIC16F872-I/SP Datasheet - Page 92
![no-image](/images/manufacturer_photos/0/4/440/microchip_technology_inc__sml.jpg)
PIC16F872-I/SP
Manufacturer Part Number
PIC16F872-I/SP
Description
28 PIN, 7 KB FLASH, 128 RAM, 22 I/O
Manufacturer
Microchip Technology Inc.
Datasheet
1.PIC16F872-ISP.pdf
(168 pages)
Specifications of PIC16F872-I/SP
A/d Inputs
5-Channel, 10-Bit
Cpu Speed
5 MIPS
Eeprom Memory
64 Bytes
Input Output
22
Interface
I2C/SPI
Memory Type
Flash
Number Of Bits
8
Package Type
28-pin SPDIP
Programmable Memory
3.5K Bytes
Ram Size
128 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
Company:
Part Number:
PIC16F872-I/SP
Manufacturer:
PIC
Quantity:
270
Company:
Part Number:
PIC16F872-I/SP
Manufacturer:
PIC
Quantity:
270
Company:
Part Number:
PIC16F872-I/SP
Manufacturer:
SILICON
Quantity:
1 000
Part Number:
PIC16F872-I/SP
Manufacturer:
MIC
Quantity:
20 000
PIC16F872
TABLE 11-2:
DS30221C-page 90
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: Rs may be required in HS mode, as well
4: When migrating from other PICmicro
EPSON CA-301 20.000M-C
of oscillator, but also increases the start-
up time.
characteristics, the user should consult
the resonator/crystal manufacturer for
appropriate values of external compo-
nents.
as XT mode, to avoid overdriving crystals
with low drive level specification.
devices, oscillator performance should be
verified.
EPSON CA-301 8.000M-C
200 kHz
200 kHz
20 MHz
Epson C-001R32.768K-A
Crystal
32 kHz
1 MHz
4 MHz
4 MHz
8 MHz
Freq
STD XTL 200.000KHz
ECS ECS-10-13-1
ECS ECS-40-20-1
CAPACITOR SELECTION FOR
CRYSTAL OSCILLATOR
Crystals Used
Cap. Range
47-68 pF
15-33 pF
15-33 pF
33 pF
15 pF
15 pF
15 pF
15 pF
C1
± 20 PPM
± 20 PPM
± 50 PPM
± 50 PPM
± 30 PPM
± 30 PPM
47-68 pF
15-33 pF
15-33 pF
Range
33 pF
15 pF
15 pF
15 pF
15 pF
Cap.
C2
®
11.2.3
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 11-3 shows how the R/C combina-
tion is connected to the PIC16F872.
FIGURE 11-3:
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
© 2006 Microchip Technology Inc.
3 k
C
EXT
EXT
) values, and the operat-
> 20pF
R
EXT
100 k
PIC16F87X
Internal
Clock