參數(shù)資料
型號: MC68HC705G4
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, OTPROM, 1 MHz, MICROCONTROLLER, PQFP80
封裝: QFP-80
文件頁數(shù): 37/128頁
文件大?。?/td> 290K
代理商: MC68HC705G4
Page 6
MOTOROLA
Section 1: INTRODUCTION
MC68HC05G3 (705G4) Specification Rev. 1.1
1.4
SYSTEM CONFIGURATIONS
The MC68HC05G3 (705G4) has several options. The sections below describe oscillator
clocks, time base, and I/O pin configurations.
1.4.1
OSCILLATORS AND CLOCK DISTRIBUTIONS
There are two oscillator blocks: OSC and XOSC. Several combinations of the clock
distributions are allowed for the modules in the MC68HC05G3 (705G4). Refer to the
following block diagram.
Figure 1-5: Clock Signal Distribution
1.4.1.1
OSC ON LINE
The main oscillator (OSC) can be stopped to conserve power via the STOP instruction or
the FOSCE bit in the MISC register. The effects of restarting the OSC will vary depending
on the current state of the MCU, including SYS0:1 and FOSCE.
If XOSC is not used, XOSC1 should be connected to either Vss or Vdd.
If OSC is the system clock, FOSCE should remain 1. Executing the STOP instruction in this
condition will halt OSC, put the MCU into a low-power mode and clear the 6-bit power-on
delay (POD) counter. The 7-bit divider is not initialized. Exiting STOP with external IRQ or
reset re-starts the oscillator. When the POD counter overflows, internal reset is released
and execution can begin. The stabilization time will vary between 8064 and 8192 counts.
NOTE:
Exiting STOP with external reset will always return the MCU to the states
defined by the register definitions, such as SYS0:1=0:0, FOSCE=1.
XOSC1
XOSC2
STOP
OSC1
OSC2
1/20
1/21
1/25
SYS1 SYS0
SEL
1/2
OSC DIVIDER
(7bit)
OSC
XOSC
CLK
CTRL
POD
(6bit)
TIMEBASE
TIMER2
TIMER1
SPI1
CPU
WAIT
EXCLK
1/20
1/27
XCLK
SPI2
A/D
PWM
PORTS
SYSTEM
CLOCK
FTUP
FOSCE/
PWRON
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相關代理商/技術參數(shù)
參數(shù)描述
MC68HC705J1A 制造商:Freescale Semiconductor 功能描述:
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MC68HC705J1ACP 功能描述:IC MCU 4MHZ 1.2K OTP 20-DIP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:HC05 其它有關文件:STM32F101T8 View All Specifications 特色產(chǎn)品:STM32 32-bit Cortex MCUs 標準包裝:490 系列:STM32 F1 核心處理器:ARM? Cortex?-M3 芯體尺寸:32-位 速度:36MHz 連通性:I²C,IrDA,LIN,SPI,UART/USART 外圍設備:DMA,PDR,POR,PVD,PWM,溫度傳感器,WDT 輸入/輸出數(shù):26 程序存儲器容量:64KB(64K x 8) 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:10K x 8 電壓 - 電源 (Vcc/Vdd):2 V ~ 3.6 V 數(shù)據(jù)轉換器:A/D 10x12b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:36-VFQFN,36-VFQFPN 包裝:托盤 配用:497-10030-ND - STARTER KIT FOR STM32497-8853-ND - BOARD DEMO STM32 UNIV USB-UUSCIKSDKSTM32-PL-ND - KIT IAR KICKSTART STM32 CORTEXM3497-8512-ND - KIT STARTER FOR STM32F10XE MCU497-8505-ND - KIT STARTER FOR STM32F10XE MCU497-8304-ND - KIT STM32 MOTOR DRIVER BLDC497-6438-ND - BOARD EVALUTION FOR STM32 512K497-6289-ND - KIT PERFORMANCE STICK FOR STM32MCBSTM32UME-ND - BOARD EVAL MCBSTM32 + ULINK-MEMCBSTM32U-ND - BOARD EVAL MCBSTM32 + ULINK2更多... 其它名稱:497-9032STM32F101T8U6-ND
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MC68HC705J2CDW 制造商:Motorola Inc 功能描述: 制造商:Motorola Inc 功能描述:MicroController, 8-Bit, 20 Pin, Plastic, SOP