参数资料
型号: PIC18F67J10T-I/PT
厂商: Microchip Technology
文件页数: 27/44页
文件大小: 0K
描述: IC PIC MCU FLASH 64KX16 64TQFP
产品培训模块: Asynchronous Stimulus
PIC18 J Series MCU Overview
标准包装: 1
系列: PIC® 18F
核心处理器: PIC
芯体尺寸: 8-位
速度: 40MHz
连通性: I²C,SPI,UART/USART
外围设备: 欠压检测/复位,POR,PWM,WDT
输入/输出数: 50
程序存储器容量: 128KB(64K x 16)
程序存储器类型: 闪存
RAM 容量: 3.8K x 8
电压 - 电源 (Vcc/Vdd): 2 V ~ 3.6 V
数据转换器: A/D 11x10b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 64-TQFP
包装: 剪切带 (CT)
配用: MA180015-ND - MODULE PLUG-IN 18F87J10 FOR HPC
AC162062-ND - HEADER INTRFC MPLAB ICD2 64/80P
AC164327-ND - MODULE SKT FOR 64TQFP
其它名称: PIC18F67J10T-I/PTCT
2009 Microchip Technology Inc.
DS39663F-page 31
PIC18F87J10 FAMILY
3.0
OSCILLATOR
CONFIGURATIONS
3.1
Oscillator Types
The PIC18F87J10 family of devices can be operated in
five different oscillator modes:
1.
HS
High-Speed Crystal/Resonator
2.
HSPLL High-Speed Crystal/Resonator
with Software PLL Control
3.
EC
External Clock with FOSC/4 Output
4.
ECPLL External Clock with Software PLL
Control
5.
INTRC Internal 31 kHz Oscillator
Four of these are selected by the user by programming
the FOSC<2:0> Configuration bits. The fifth mode
(INTRC) may be invoked under software control; it can
also be configured as the default mode on device
Resets.
3.2
Crystal Oscillator/Ceramic
Resonators (HS Modes)
In HS or HSPLL Oscillator modes, a crystal or ceramic
resonator is connected to the OSC1 and OSC2 pins to
establish oscillation. Figure 3-1 shows the pin
connections.
The oscillator design requires the use of a parallel cut
crystal.
FIGURE 3-1:
CRYSTAL/CERAMIC
RESONATOR OPERATION
(HS OR HSPLL
CONFIGURATION)
TABLE 3-1:
CAPACITOR SELECTION FOR
CERAMIC RESONATORS
Note:
Use of a series cut crystal may give a fre-
quency out of the crystal manufacturer’s
specifications.
Typical Capacitor Values Used:
Mode
Freq.
OSC1
OSC2
HS
8.0 MHz
16.0 MHz
27 pF
22 pF
27 pF
22 pF
Capacitor values are for design guidance only.
These capacitors were tested with the resonators
listed below for basic start-up and operation. These
values are not optimized.
Different capacitor values may be required to produce
acceptable oscillator operation. The user should test
the performance of the oscillator over the expected
VDD and temperature range for the application.
See the notes following Table 3-2 for additional
information.
Resonators Used:
4.0 MHz
8.0 MHz
16.0 MHz
Note 1: See Table 3-1 and Table 3-2 for initial values of
C1 and C2.
2: A series resistor (RS) may be required for AT
strip cut crystals.
3: RF varies with the oscillator mode chosen.
C1(1)
C2(1)
XTAL
OSC2
OSC1
RF(3)
Sleep
To
Logic
PIC18F87J10
RS(2)
Internal
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