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參數(shù)資料
| 型號(hào)： | MC68HC705G4 |
| 廠(chǎng)商： | MOTOROLA INC |
| 元件分類(lèi)： | 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(yè)數(shù)： | 39/128頁(yè) |
| 文件大?。?/td> | 290K |
| 代理商： | MC68HC705G4 |
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Page 8
MOTOROLA
Section 1: INTRODUCTION
MC68HC05G3 (705G4) Specification Rev. 1.1
XOSC WITH FOSCE=0 AND STOP
If XOSC is the system clock and FOSCE is cleared, further power reduction can be
achieved by executing the STOP instruction. In this case, OSC is stopped, the 7-bit divider
plus the 6-bit POD counter are preset to $0078 (since FOSCE=0) and execution is halted.
Exiting STOP with external IRQ does not re-start the OSC; however, execution begins
immediately using XOSC. OSC may be re-started by setting FOSCE, and when the POD
counter overflows, FTUP be will set signaling that OSC is stable and can be used as the
system clock. The stabilization time will be 8072 counts.
1.4.1.3
OSC CLOCK DIVIDER AND POD COUNTER
The OSC clock is divided by a 7-bit counter which is used for the system clock, time base,
and POD counter. Clocks divided by 2, 4, and 64 are available for the system clock
selections and a clock divided by 128 is provided for the time base and POD counter.
The POD counter is a 6 bit-clock counter that is driven by the OSC divided by 128. The
overflow of this counter is used for setting FTUP bit, release of power-on delay (POD), and
resuming operation from stop mode.
The 7-bit divider plus the 6-bit POD counter are initialized to $0078 by the following
conditions.
Power-on detection
When FOSCE bit is cleared
1.4.1.4
SYSTEM CLOCK CONTROL
The system clock is provided for all internal modules except time base.
Both OSC and XOSC are available as the system clock source. The divide ratio is selected
by the SYS1 and SYS0 bits in the MISC register.
By default OSC divided by two is selected on reset.
Table 1-1: System Clock Frequency
SYS1
SYS0
DIVIDE RATIO
FREQUENCY (HZ)
OSC=
4.0M
OSC=
4.1943M
XOSC=
32.768K
0
1
0
1
0
1
OSC DIVIDED BY 2
OSC DIVIDED BY 4
OSC DIVIDED BY 64
XOSC DIVIDED BY 2
2.0M
1.0M
62.5K
----
2.0972M
1.0486M
65.536K
----
16.384K
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相關(guān)代理商/技術(shù)參數(shù) |
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| MC68HC705J1A | 制造商:Freescale Semiconductor 功能描述: |
| MC68HC705J1ACDW | 功能描述:IC MCU 4MHZ 1.2K OTP 20-SOIC RoHS:否 類(lèi)別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:HC05 其它有關(guān)文件:STM32F101T8 View All Specifications 特色產(chǎn)品:STM32 32-bit Cortex MCUs 標(biāo)準(zhǔn)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(shè)備:DMA，PDR，POR，PVD，PWM，溫度傳感器，WDT 輸入/輸出數(shù):26 程序存儲(chǔ)器容量:64KB（64K x 8） 程序存儲(chǔ)器類(lèi)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(zhuǎn)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(pán) 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(chēng):497-9032STM32F101T8U6-ND |
| MC68HC705J1ACP | 功能描述:IC MCU 4MHZ 1.2K OTP 20-DIP RoHS:否 類(lèi)別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:HC05 其它有關(guān)文件:STM32F101T8 View All Specifications 特色產(chǎn)品:STM32 32-bit Cortex MCUs 標(biāo)準(zhǔn)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(shè)備:DMA，PDR，POR，PVD，PWM，溫度傳感器，WDT 輸入/輸出數(shù):26 程序存儲(chǔ)器容量:64KB（64K x 8） 程序存儲(chǔ)器類(lèi)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(zhuǎn)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(pán) 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(chēng):497-9032STM32F101T8U6-ND |
| MC68HC705J1ACPE | 功能描述:8位微控制器 -MCU HCO5 CORE+1.2K RAM + EPR RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線(xiàn)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 |
| 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 |
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