參數(shù)資料
型號： PIC18F8620-I/PT
廠商： Microchip Technology
文件頁數(shù)： 82/165頁
文件大?。?/td> 0K
描述： IC MCU FLASH 32KX16 EE 80TQFP
產(chǎn)品培訓(xùn)模塊： Asynchronous Stimulus
8-bit PIC® Microcontroller Portfolio
標(biāo)準(zhǔn)包裝： 119
系列： PIC® 18F
核心處理器： PIC
芯體尺寸： 8-位
速度： 25MHz
連通性： EBI/EMI，I²C，SPI，UART/USART
外圍設(shè)備： 欠壓檢測/復(fù)位，LVD，POR，PWM，WDT
輸入/輸出數(shù)： 68
程序存儲器容量： 64KB（32K x 16）
程序存儲器類型： 閃存
EEPROM 大小： 1K x 8
RAM 容量： 3.75K x 8
電壓 - 電源 (Vcc/Vdd)： 4.2 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器： A/D 16x10b
振蕩器型： 外部
工作溫度： -40°C ~ 85°C
封裝/外殼： 80-TQFP
包裝： 托盤
配用： XLT80PT3-ND - SOCKET TRAN ICE 80MQFP/TQFP
AC164320-ND - MODULE SKT MPLAB PM3 80TQFP
AC174011-ND - MODULE SKT PROMATEII 80TQFP
2004 Microchip Technology Inc.
DS39609B-page 21
PIC18F6520/8520/6620/8620/6720/8720
2.0
OSCILLATOR
CONFIGURATIONS
2.1
Oscillator Types
The PIC18FXX20 devices can be operated in eight
different oscillator modes. The user can program three
configuration bits (FOSC2, FOSC1 and FOSC0) to
select one of these eight modes:
1.
LP
Low-Power Crystal
2.
XT
Crystal/Resonator
3.
HS
High-Speed Crystal/Resonator
4.
HS+PLL
High-Speed Crystal/Resonator
with PLL enabled
5.
RC
External Resistor/Capacitor
6.
RCIO
External Resistor/Capacitor with
I/O pin enabled
7.
EC
External Clock
8.
ECIO
External Clock with I/O pin
enabled
2.2
Crystal Oscillator/Ceramic
Resonators
In XT, LP, HS or HS+PLL Oscillator modes, a crystal or
ceramic resonator is connected to the OSC1 and
OSC2 pins to establish oscillation. Figure 2-1 shows
the pin connections.
The PIC18FXX20 oscillator design requires the use of
a parallel cut crystal.
FIGURE 2-1:
CRYSTAL/CERAMIC
RESONATOR OPERATION
(HS, XT OR LP
CONFIGURATION)
TABLE 2-1:
CAPACITOR SELECTION FOR
CERAMIC RESONATORS
Note:
Use of a series cut crystal may give a fre-
quency out of the crystal manufacturer’s
specifications.
Note 1:
See Table 2-1 and Table 2-2 for recommended
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
PIC18FXX20
RS(2)
Internal
Ranges Tested:
Mode
Freq
C1
C2
XT
455 kHz
2.0 MHz
4.0 MHz
68-100 pF
15-68 pF
68-100 pF
15-68 pF
HS
8.0 MHz
16.0 MHz
10-68 pF
10-22 pF
10-68 pF
10-22 pF
These values are for design guidance only.
See notes following this table.
Resonators Used:
2.0 MHz
Murata Erie CSA2.00MG
± 0.5%
4.0 MHz
Murata Erie CSA4.00MG
± 0.5%
8.0 MHz
Murata Erie CSA8.00MT
± 0.5%
16.0 MHz Murata Erie CSA16.00MX
± 0.5%
All resonators used did not have built-in capacitors.
Note 1: Higher capacitance increases the stability
of the oscillator, but also increases the
start-up time.
2: When operating below 3V VDD, or when
using certain ceramic resonators at any
voltage, it may be necessary to use high
gain HS mode, try a lower frequency
resonator, or switch to a crystal oscillator.
3: Since each resonator/crystal has its own
characteristics, the user should consult
the resonator/crystal manufacturer for
appropriate
values
of
external
components,
or
verify
oscillator
performance.
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參數(shù)描述
PIC18F8620-IPT/C01 制造商:Microchip Technology 功能描述:MCU 8-Bit PIC18 PIC RISC 64KB Flash 5V 80-Pin TQFP Tray
PIC18F8620T-E/PT 功能描述:8位微控制器 -MCU 25MHz 64KB Flash 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
PIC18F8620T-I/PT 功能描述:8位微控制器 -MCU 64KB 3840 RAM 68I/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
PIC18F8621-E/PT 功能描述:8位微控制器 -MCU 64KB 3840 RAM 68I/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
PIC18F8621-I/PT 功能描述:8位微控制器 -MCU 64KB 3840 RAM 68I/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
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