參數(shù)資料
型號(hào)： MC68HC705C8ACFN
廠商： MOTOROLA INC
元件分類(lèi)： 微控制器/微處理器
英文描述： HCMOS Microcontroller Unit
中文描述： 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PQCC44
封裝： PLASTIC, LCC-44
文件頁(yè)數(shù)： 57/108頁(yè)
文件大?。?/td> 718K
代理商： MC68HC705C8ACFN
MC68HC705KJ1 MC68HRC705KJ1 MC68HLC705KJ1 Data Sheet, Rev. 4.1
Freescale Semiconductor
57
Chapter 6
Low-Power Modes
6.1 Introduction
The MCU can enter the following low-power standby modes:
Stop mode — The STOP instruction puts the MCU in its lowest power-consumption mode.
Wait mode — The WAIT instruction puts the MCU in an intermediate power-consumption mode.
Halt mode — Halt mode is identical to wait mode, except that an oscillator stabilization delay of 1
to 4064 internal clock cycles occurs when the MCU exits halt mode. The stop-to-wait conversion
bit, SWAIT, in the mask option register, enables halt mode.
Enabling halt mode prevents the computer operating properly (COP) watchdog from being
inadvertently turned off by a STOP instruction.
Data-retention mode — In data-retention mode, the MCU retains RAM contents and CPU register
contents at V
DD
voltages as low as 2.0 Vdc. The data-retention feature allows the MCU to remain
in a low power-consumption state during which it retains data, but the CPU cannot execute
instructions.
6.2 Exiting Stop and Wait Modes
The following events bring the MCU out of stop mode and load the program counter with the reset vector
or with an interrupt vector:
Exiting Stop Mode
External reset — A logic 0 on the RESET pin resets the MCU, starts the CPU clock, and loads the
program counter with the contents of locations $07FE and $07FF.
External interrupt — A high-to-low transition on the IRQ/V
PP
pin or a low-to-high transition on an
enabled port A external interrupt pin starts the CPU clock and loads the program counter with the
contents of locations $07FA and $07FB.
Exiting Wait Mode
External reset — A logic 0 on the RESET pin resets the MCU, starts the CPU clock, and loads the
program counter with the contents of locations $07FE and $07FF.
External interrupt — A high-to-low transition on the IRQ/V
PP
pin or a low-to-high transition on an
enabled port A external interrupt pin starts the CPU clock and loads the program counter with the
contents of locations $07FA and $07FB.
COP watchdog reset — A timeout of the COP watchdog resets the MCU, starts the CPU clock, and
loads the program counter with the contents of locations $07FE and $07FF. Software can enable
timer interrupts so that the MCU periodically can exit wait mode to reset the COP watchdog.
Timer interrupt — Real-time interrupt requests and timer overflow interrupt requests start the MCU
clock and load the program counter with the contents of locations $07F8 and $07F9.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC68HC705C8ACFNE 功能描述:8位微控制器 -MCU HC05 CORE + 8K RAM + EPR 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
MC68HC705C8ACFNE 制造商:Freescale Semiconductor 功能描述:IC 8BIT MCU 68HC05 2.1MHZ
MC68HC705C8ACP 功能描述:IC MCU 4MHZ 8K OTP 40-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
MC68HC705C8ACPB 制造商:Freescale Semiconductor 功能描述:
MC68HC705C8ACPE 制造商:Freescale Semiconductor 功能描述:
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