參數(shù)資料
型號(hào): PIC18F84J11T-I/PT
廠商: Microchip Technology
文件頁(yè)數(shù): 200/332頁(yè)
文件大?。?/td> 0K
描述: IC PIC MCU FLASH 8KX16 80TQFP
產(chǎn)品培訓(xùn)模塊: Asynchronous Stimulus
PIC18 J Series MCU Overview
標(biāo)準(zhǔn)包裝: 1,200
系列: PIC® 18F
核心處理器: PIC
芯體尺寸: 8-位
速度: 40MHz
連通性: EBI/EMI,I²C,SPI,UART/USART
外圍設(shè)備: 欠壓檢測(cè)/復(fù)位,LVD,POR,PWM,WDT
輸入/輸出數(shù): 67
程序存儲(chǔ)器容量: 16KB(8K x 16)
程序存儲(chǔ)器類型: 閃存
RAM 容量: 1K x 8
電壓 - 電源 (Vcc/Vdd): 2 V ~ 3.6 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 12x10b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 80-TQFP
包裝: 帶卷 (TR)
配用: MA180018-ND - MODULE PLUG-IN 18F85J11
AC162079-ND - HEADER MPLAB ICD2 18F85J90 64/80
AC164328-ND - MODULE SKT FOR 80TQFP
其它名稱: PIC18F84J11T-I/PTTR
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2010 Microchip Technology Inc.
DS39774D-page 279
PIC18F85J11 FAMILY
23.0 SPECIAL FEATURES OF THE
CPU
PIC18F85J11 family devices include several features
intended to maximize reliability and minimize cost
through elimination of external components. These are:
Oscillator Selection
Resets:
- Power-on Reset (POR)
- Power-up Timer (PWRT)
- Oscillator Start-up Timer (OST)
- Brown-out Reset (BOR)
Interrupts
Watchdog Timer (WDT)
Fail-Safe Clock Monitor
Two-Speed Start-up
Code Protection
In-Circuit Serial Programming
The oscillator can be configured for the application
depending on frequency, power, accuracy and cost. All
of the options are discussed in detail in Section 3.0
A complete discussion of device Resets and interrupts
is available in previous sections of this data sheet.
In addition to their Power-up and Oscillator Start-up
Timers provided for Resets, the PIC18F85J11 family of
devices have a configurable Watchdog Timer which is
controlled in software.
The inclusion of an internal RC oscillator also provides
the additional benefits of a Fail-Safe Clock Monitor
(FSCM) and Two-Speed Start-up. FSCM provides for
background monitoring of the peripheral clock and
automatic switchover in the event of its failure.
Two-Speed Start-up enables code to be executed
almost immediately on start-up while the primary clock
source completes its start-up delays.
All of these features are enabled and configured by
setting the appropriate Configuration register bits.
23.1
Configuration Bits
The Configuration bits can be programmed (read as
‘0’), or left unprogrammed (read as ‘1’), to select
various device configurations. These bits are mapped
starting at program memory location 300000h. A
complete list is shown in Table 23-2. A detailed
explanation of the various bit functions is provided in
23.1.1
CONSIDERATIONS FOR
CONFIGURING THE PIC18F85J11
FAMILY DEVICES
Unlike some previous PIC18 microcontrollers, devices
of the PIC18F85J11 family do not use persistent
memory registers to store configuration information.
The Configuration registers, CONFIG1L through
CONFIG4H, are implemented as volatile memory.
Immediately after power-up, or after a device Reset,
the microcontroller hardware automatically loads the
CONFIG1L through CONFIG4L registers with configu-
ration data stored in nonvolatile Flash program
memory. The last four words of Flash program memory,
known as the Flash Configuration Words (FCW), are
used to store the configuration data. Table 23-1
provides the Flash program memory, which will be
loaded into the corresponding Configuration register.
When creating applications for these devices, users
should always specifically allocate the location of the
Flash Configuration Word for configuration data. This is
to make certain that program code is not stored in this
address when the code is compiled.
The volatile memory cells used for the Configuration
bits always reset to ‘1’ on Power-on Resets. For all
other
types
of
Reset
events,
the
previously
programmed values are maintained and used without
reloading from program memory.
The four Most Significant bits of CONFIG1H,
CONFIG2H and CONFIG3H in program memory
should also be ‘1111’. This makes these Configuration
Words appear to be NOP instructions in the remote
event that their locations are ever executed by
accident. Since Configuration bits are not implemented
in the corresponding locations, writing ‘1’s to these
locations has no effect on device operation.
To prevent inadvertent configuration changes during
code execution, all programmable Configuration bits
are write-once. After a bit is initially programmed during
a power cycle, it cannot be written to again. Changing
a device configuration requires that power to the device
be cycled.
TABLE 23-1:
MAPPING OF THE FLASH
CONFIGURATION WORDS TO
THE CONFIGURATION
REGISTERS
Configuration
Byte
Code Space
Address
Configuration
Register
Address
CONFIG1L
XXXF8h
300000h
CONFIG1H
XXXF9h
300001h
CONFIG2L
XXXFAh
300002h
CONFIG2H
XXXFBh
300003h
CONFIG3L
XXXFCh
300004h
CONFIG3H
XXXFDh
300005h
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PIC18F84J90-I/PT 功能描述:8位微控制器 -MCU 16KB Flash 1024bytes-RAM 67I/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(chǔ)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
PIC18F84J90T-I/PT 功能描述:8位微控制器 -MCU 16KB Flash 1024bytes-RAM 67I/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(chǔ)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
PIC18F8520-E/PT 功能描述:8位微控制器 -MCU 32KB 2048 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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
PIC18F8520-I/PT 功能描述:8位微控制器 -MCU 32KB 2048 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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
PIC18F8520-I/PT 制造商:Microchip Technology Inc 功能描述:IC 8BIT FLASH MCU 18F8520 TQFP80