PIC16F871-E/L Microchip Technology, PIC16F871-E/L Datasheet - Page 91
![IC MCU CMOS 20MHZ 2K FLSH 44PLCC](/photos/6/63/66325/150-44-plcc_sml.jpg)
PIC16F871-E/L
Manufacturer Part Number
PIC16F871-E/L
Description
IC MCU CMOS 20MHZ 2K FLSH 44PLCC
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16F688T-ISL.pdf
(688 pages)
3.PIC16F870-ISO.pdf
(172 pages)
4.PIC16F870-ISO.pdf
(6 pages)
Specifications of PIC16F871-E/L
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Connectivity
UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
33
Program Memory Size
3.5KB (2K x 14)
Program Memory Type
FLASH
Eeprom Size
64 x 8
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 125°C
Package / Case
44-PLCC
For Use With
DVA16XL441 - ADAPTER DEVICE ICE 44PLCC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC16F871-E/L
Manufacturer:
Microchip Technology
Quantity:
10 000
- PIC16F616T-ISL PDF datasheet
- PIC16F688T-ISL PDF datasheet #2
- PIC16F870-ISO PDF datasheet #3
- PIC16F870-ISO PDF datasheet #4
- Current page: 91 of 172
- Download datasheet (4Mb)
11.2
11.2.1
The PIC16F870/871 can be operated in four different
Oscillator modes. The user can program two configura-
tion bits (FOSC1 and FOSC0) to select one of these
four modes:
• LP
• XT
• HS
• RC
11.2.2
In XT, LP or HS modes, a crystal or ceramic resonator
is connected to the OSC1/CLKI and OSC2/CLKO pins
to establish oscillation (Figure 11-1). The PIC16F870/
871 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/CLKI pin (Figure 11-2).
FIGURE 11-1:
2003 Microchip Technology Inc.
Note 1:
C1
C2
2:
3:
Oscillator Configurations
(1)
(1)
Low Power Crystal
Crystal/Resonator
High Speed Crystal/Resonator
Resistor/Capacitor
CRYSTAL OSCILLATOR/CERAMIC
RESONATORS
OSCILLATOR TYPES
See Table 11-1 and Table 11-2 for
recommended values of C1 and C2.
A series resistor (R
AT strip cut crystals.
RF varies with the crystal chosen.
XTAL
R
s
(2)
OSC1
OSC2
CRYSTAL/CERAMIC
RESONATOR OPERATION
(HS, XT OR LP
OSC CONFIGURATION)
s
RF
) may be required for
(3)
PIC16F870/871
SLEEP
To
Internal
Logic
FIGURE 11-2:
TABLE 11-1:
All resonators used did not have built-in capacitors.
16.0 MHz
These values are for design guidance only.
See notes following Table 11-2.
455 kHz
2.0 MHz
4.0 MHz
8.0 MHz
Clock from
Ext. System
Mode
HS
XT
Panasonic EFO-A455K04B
Murata Erie CSA16.00MX
16.0 MHz
Murata Erie CSA2.00MG
Murata Erie CSA4.00MG
Murata Erie CSA8.00MT
Open
455 kHz
2.0 MHz
4.0 MHz
8.0 MHz
PIC16F870/871
Freq.
Resonators Used:
CERAMIC RESONATORS
Ranges Tested:
EXTERNAL CLOCK INPUT
OPERATION (HS, XT OR LP
OSC CONFIGURATION)
68 - 100 pF
OSC1
OSC2
15 - 68 pF
15 - 68 pF
10 - 68 pF
10 - 22 pF
OSC1
PIC16F870/871
DS30569B-page 89
68 - 100 pF
15 - 68 pF
15 - 68 pF
10 - 68 pF
10 - 22 pF
OSC2
0.3%
0.5%
0.5%
0.5%
0.5%
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