參數(shù)資料
型號: PIC16LC715
廠商: Microchip Technology Inc.
英文描述: 8-Bit CMOS Microcontrollers with A/D Converter
中文描述: 8位CMOS微控制器與A / D轉(zhuǎn)換器
文件頁數(shù): 49/176頁
文件大?。?/td> 803K
代理商: PIC16LC715
1997 Microchip Technology Inc.
DS30272A-page 49
PIC16C71X
8.2
Oscillator Configurations
8.2.1
OSCILLATOR TYPES
The PIC16CXX can be operated in four different oscil-
lator modes. The user can program two configuration
bits (FOSC1 and FOSC0) to select one of these four
modes:
LP
Low Power Crystal
XT
Crystal/Resonator
HS
High Speed Crystal/Resonator
RC
Resistor/Capacitor
8.2.2
CRYSTAL OSCILLATOR/CERAMIC
RESONATORS
In XT, LP or HS modes a crystal or ceramic resonator
is connected to the OSC1/CLKIN and OSC2/CLKOUT
pins
to
establish
oscillation
PIC16CXX Oscillator design requires the use of a par-
allel cut crystal. Use of a series cut crystal may give a
frequency out of the crystal manufacturers specifica-
tions. When in XT, LP or HS modes, the device can
have an external clock source to drive the OSC1/
CLKIN pin (Figure 8-5).
(Figure 8-4). The
FIGURE 8-4:
CRYSTAL/CERAMIC
RESONATOR OPERATION
(HS, XT OR LP
OSC CONFIGURATION)
FIGURE 8-5:
EXTERNAL CLOCK INPUT
OPERATION (HS, XT OR LP
OSC CONFIGURATION)
C1
C2
XTAL
OSC2
Note1
OSC1
R
F
SLEEP
PIC16CXXX
RS
See Table 8-1 and Table 8-1 for recommended values of
C1 and C2.
Note 1:
A series resistor may be required for AT strip
cut crystals.
The buffer is on the OSC2 pin.
2:
(2)
To internal
logic
OSC1
OSC2
Open
Clock from
ext. system
PIC16CXXX
TABLE 8-1:
CERAMIC RESONATORS,
PIC16C71
TABLE 8-2:
CAPACITOR SELECTION
FOR CRYSTAL OSCILLATOR,
PIC16C71
Ranges Tested:
Mode
XT
Freq
OSC1
47 - 100 pF
15 - 68 pF
15 - 68 pF
15 - 68 pF
10 - 47 pF
OSC2
455 kHz
2.0 MHz
4.0 MHz
8.0 MHz
16.0 MHz
These values are for design guidance only.
See
notes at bottom of page.
Resonators Used:
455 kHz
Panasonic EFO-A455K04B
±
0.3%
2.0 MHz
Murata Erie CSA2.00MG
4.0 MHz
Murata Erie CSA4.00MG
8.0 MHz
Murata Erie CSA8.00MT
16.0 MHz
Murata Erie CSA16.00MX
All resonators used did not have built-in capacitors.
47 - 100 pF
15 - 68 pF
15 - 68 pF
15 - 68 pF
10 - 47 pF
HS
±
0.5%
±
0.5%
±
0.5%
±
0.5%
Mode
LP
Freq
32 kHz
200 kHz
100 kHz
500 kHz
1 MHz
2 MHz
4 MHz
8 MHz
20 MHz
OSC1
33 - 68 pF
15 - 47 pF
47 - 100 pF
20 - 68 pF
15 - 68 pF
15 - 47 pF
15 - 33 pF
15 - 47 pF
15 - 47 pF
OSC2
33 - 68 pF
15 - 47 pF
47 - 100 pF
20 - 68 pF
15 - 68 pF
15 - 47 pF
15 - 33 pF
15 - 47 pF
15 - 47 pF
XT
HS
These values are for design guidance only.
See
notes at bottom of page.
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PIC16LC715-04/SS 功能描述:8位微控制器 -MCU 3.5KB 128 RAM 13 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
PIC16LC715-04E/P 功能描述:8位微控制器 -MCU w/A/D Low Power RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
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