參數資料
型號： PIC16C715
廠商： Microchip Technology Inc.
英文描述： 8-Bit CMOS Microcontroller with A/D Converter(每個I/O口有25mA驅動/吸收電流，微控制器)
中文描述： 8位CMOS微控制器與A / D轉換器（每個的I / O口有25毫安驅動/吸收電流，微控制器）
文件頁數： 46/120頁
文件大小： 764K
代理商： PIC16C715
PIC16C715
DS30560A-page 46
Advance Information
1996 Microchip Technology Inc.
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 (Figure 8-2). The
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 8-3).
FIGURE 8-2:
CRYSTAL/CERAMIC
RESONATOR OPERATION
(HS, XT OR LP
OSC CONFIGURATION)
FIGURE 8-3:
EXTERNAL CLOCK INPUT
OPERATION (HS, XT OR LP
OSC CONFIGURATION)
C1
C2
XTAL
OSC2
Note1
OSC1
R
F
SLEEP
PIC16CXX
To internal
logic
RS
See Table 8-1 and Table 8-2 for recommended values of
C1 and C2.
Note 1:
A series resistor may be required for AT strip
cut crystals.
For the PIC16C710/71/711 the buffer is on the
OSC2 pin, all other devices have the buffer on
the OSC1 pin.
2:
(2)
(2)
To internal
logic
OSC1
OSC2
Open
Clock from
ext. system
PIC16CXX
TABLE 8-1:
CERAMIC RESONATORS
TABLE 8-2:
CAPACITOR SELECTION
FOR CRYSTAL OSCILLATOR
Ranges Tested:
Mode
XT
Freq
OSC1
OSC2
68 - 100 pF
15 - 68 pF
15 - 68 pF
10 - 68 pF
10 - 22 pF
455 kHz
2.0 MHz
4.0 MHz
8.0 MHz
16.0 MHz
Recommended values of C1 and C2 are identical to
the ranges tested table.
Higher capacitance increases the stability of oscil-
lator but also increases the start-up time. These
values are for design guidance only. Since each
resonator has its own characteristics, the user
should consult the resonator manufacturer for
appropriate values of external components.
Resonators Used:
455 kHz
Panasonic EFO-A455K04B
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.
68 - 100 pF
15 - 68 pF
15 - 68 pF
10 - 68 pF
10 - 22 pF
HS
Note:
±
±
±
±
±
0.3%
0.5%
0.5%
0.5%
0.5%
Mode
LP
Freq
OSC1
15 - 47 pF
15 - 33 pF
47 - 100 pF
20 - 68 pF
15 - 68 pF
15 - 47 pF
15 - 33 pF
15 - 47 pF
15 - 47 pF
OSC2
15 - 47 pF
15 - 33 pF
47 - 100 pF
20 - 68 pF
15 - 68 pF
15 - 47 pF
15 - 33 pF
15 - 47 pF
15 - 47 pF
32 kHz
200 kHz
100 kHz
500 kHz
1 MHz
2 MHz
4 MHz
8 MHz
20 MHz
Higher capacitance increases the stability of oscil-
lator but also increases the start-up time. These
values are for design guidance only. Rs may be
required in HS mode as well as XT mode to avoid
overdriving crystals with low drive level specifica-
tion. Since each crystal has its own characteristics,
the user should consult the crystal manufacturer for
appropriate values of external components.
For V
DD
> 4.5V, C1 = C2
mended.
(1)
XT
HS
Note:
Note 1:
≈
30 pF is recom-
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相關代理商/技術參數
參數描述
PIC16C715/JW 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 數據總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數據 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 安裝風格:SMD/SMT
PIC16C715-04/P 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 數據總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數據 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 安裝風格:SMD/SMT
PIC16C715-04/P 制造商:Microchip Technology Inc 功能描述:IC 8BIT CMOS MCU 16C715 DIP18
PIC16C715-04/P 制造商:Microchip Technology Inc 功能描述:Microcontroller IC Number of I/Os:13
PIC16C715-04/SO 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 數據總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數據 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 安裝風格:SMD/SMT
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