參數(shù)資料
型號： PIC18F4331-E/ML
廠商： Microchip Technology
文件頁數(shù)： 42/119頁
文件大?。?/td> 0K
描述： IC MCU FLASH 4KX16 44QFN
標(biāo)準(zhǔn)包裝： 45
系列： PIC® 18F
核心處理器： PIC
芯體尺寸： 8-位
速度： 40MHz
連通性： I²C，SPI，UART/USART
外圍設(shè)備： 欠壓檢測/復(fù)位，LVD，電源控制 PWM，QEI，POR，PWM，WDT
輸入/輸出數(shù)： 36
程序存儲器容量： 8KB（4K x 16）
程序存儲器類型： 閃存
EEPROM 大?。?/td> 256 x 8
RAM 容量： 768 x 8
電壓 - 電源 (Vcc/Vdd)： 4.2 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器： A/D 9x10b
振蕩器型： 內(nèi)部
工作溫度： -40°C ~ 125°C
封裝/外殼： 44-VQFN 裸露焊盤
包裝： 管件
配用： I3-DB18F4431-ND - BOARD DAUGHTER ICEPIC3
2010 Microchip Technology Inc.
DS39616D-page 29
PIC18F2331/2431/4331/4431
3.0
OSCILLATOR
CONFIGURATIONS
3.1
Oscillator Types
The PIC18F2331/2431/4331/4431 devices can be
operated in 10 different oscillator modes. The user can
program the Configuration bits, FOSC<3:0>, in
Configuration Register 1H to select one of these
10 modes:
1.
LP
Low-Power Crystal
2.
XT
Crystal/Resonator
3.
HS
High-Speed Crystal/Resonator
4.
HSPLL
High-Speed Crystal/Resonator
with PLL Enabled
5.
RC
External Resistor/Capacitor with
FOSC/4 Output on RA6
6.
RCIO
External Resistor/Capacitor with
I/O on RA6
7.
INTIO1
Internal Oscillator with FOSC/4
Output on RA6 and I/O on RA7
8.
INTIO2
Internal Oscillator with I/O on RA6
and RA7
9.
EC
External Clock with FOSC/4 Output
10. ECIO
External Clock with I/O on RA6
3.2
Crystal Oscillator/Ceramic
Resonators
In XT, LP, 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
resonant crystal.
FIGURE 3-1:
CRYSTAL/CERAMIC
RESONATOR OPERATION
(XT, LP, HS OR HSPLL
CONFIGURATION)
TABLE 3-1:
CAPACITOR SELECTION FOR
CERAMIC RESONATORS
Note:
Use of a series resonant crystal may give
a
frequency
out
of
the
crystal
manufacturers’ specifications.
Typical Capacitor Values Used:
Mode
Freq
OSC1
OSC2
XT
455 kHz
2.0 MHz
4.0 MHz
56 pF
47 pF
33 pF
56 pF
47 pF
33 pF
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:
455 kHz
4.0 MHz
2.0 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 resonant crystals.
3:
RF varies with the oscillator mode chosen.
C1(1)
C2(1)
XTAL
OSC2
OSC1
RF(3)
Sleep
To
Logic
PIC18FXXXX
RS(2)
Internal
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PIC18F4331-I/ML 功能描述:8位微控制器 -MCU 8KB 768 RAM 34 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(shí)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
PIC18F4331-I/P 功能描述:8位微控制器 -MCU 8KB 768 RAM 34 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(shí)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
PIC18F4331-I/P 制造商:Microchip Technology Inc 功能描述:IC 8BIT FLASH MCU 18F4331 DIP40
PIC18F4331-I/PT 功能描述:8位微控制器 -MCU 8KB 768 RAM 34 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(shí)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
PIC18F4331-I/PT 制造商:Microchip Technology Inc 功能描述:IC 8BIT FLASH MCU 18F4331 TQFP44
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