参数资料
型号: MC68HC705RC17DW
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, OTPROM, 2.097 MHz, MICROCONTROLLER, PDSO28
封装: SOIC-28
文件页数: 71/126页
文件大小: 3079K
代理商: MC68HC705RC17DW
Resets
Internal Resets
MC68HC705RC17 Rev. 2.0
General Release Specification
Resets
NON-DISCLOSURE
AGREEMENT
REQUIRED
5.5.2 Computer Operating Properly Reset (COPR)
The MCU contains a watchdog timer that automatically times out if not
reset (cleared) within a specific time by a program reset sequence. If the
COP watchdog timer is allowed to time out, an internal reset is
generated to reset the MCU. Regardless of an internal or external reset,
the MCU comes out of a COP reset according to the standard rules of
mode selection.
The COP reset function is enabled or disabled by a mask option and is
verified during production testing.
5.5.2.1 Resetting the COP
Writing a 0 to the COP bit prevents a COP reset. This action resets the
counter and begins the time out period again. The COP bit is bit 0 of
address $3FF0. A read of address $3FF0 returns user data programmed
at that location.
5.5.2.2 COP During Wait Mode
The COP continues to operate normally during wait mode. The software
should pull the device out of wait mode periodically and reset the COP
by writing to the COPF bit to prevent a COP reset.
5.5.2.3 COP During Stop Mode
When the stop enable mask option is selected, stop mode disables the
oscillator circuit and thereby turns the clock off for the entire device.
When stop is executed, the COP counter will hold its current state. If a
reset is used to exit stop mode, the COP counter is reset and held until
4064 POR cycles are completed at which time counting will begin. If an
external IRQ is used to exit stop mode, the COP counter does not wait
for the completion of the 4064 POR cycles but does count these cycles.
Therefore, it is recommended that the COP is fed before executing the
STOP instruction.
F
re
e
sc
a
le
S
e
m
ic
o
n
d
u
c
to
r,
I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
c
..
.
相关PDF资料
PDF描述
MC68HC705RC17P 8-BIT, OTPROM, 2.097 MHz, MICROCONTROLLER, PDIP28
MC74AC112DR2 AC SERIES, DUAL NEGATIVE EDGE TRIGGERED J-K FLIP-FLOP, COMPLEMENTARY OUTPUT, PDSO16
MC74AC253N AC SERIES, DUAL 4 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDIP16
MC74HC02ADDR2 HC/UH SERIES, QUAD 2-INPUT NOR GATE, PDSO14
MC74HC76DR2 HC/UH SERIES, DUAL NEGATIVE EDGE TRIGGERED J-K FLIP-FLOP, COMPLEMENTARY OUTPUT, PDSO16
相关代理商/技术参数
参数描述
MC68HC705SR3CP 功能描述:IC MCU 3.75K 2.1MHZ OTP 40-DIP RoHS:否 类别:集成电路 (IC) >> 嵌入式 - 微控制器, 系列:HC05 其它有关文件:STM32F101T8 View All Specifications 特色产品:STM32 32-bit Cortex MCUs 标准包装:490 系列:STM32 F1 核心处理器:ARM? Cortex?-M3 芯体尺寸:32-位 速度:36MHz 连通性:I²C,IrDA,LIN,SPI,UART/USART 外围设备:DMA,PDR,POR,PVD,PWM,温度传感器,WDT 输入/输出数:26 程序存储器容量:64KB(64K x 8) 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:10K x 8 电压 - 电源 (Vcc/Vdd):2 V ~ 3.6 V 数据转换器:A/D 10x12b 振荡器型:内部 工作温度:-40°C ~ 85°C 封装/外壳:36-VFQFN,36-VFQFPN 包装:托盘 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... 其它名称:497-9032STM32F101T8U6-ND
MC68HC705SR3CPE 功能描述:8位微控制器 -MCU 8B MCU 192 BYTES RAM RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
MC68HC705SR3CPE 制造商:Freescale Semiconductor 功能描述:8-Bit Microcontroller IC
MC68HC705SR3PE 功能描述:IC MCU 3.75K 2.1MHZ OTP 40-DIP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器, 系列:HC05 标准包装:1 系列:AVR® ATmega 核心处理器:AVR 芯体尺寸:8-位 速度:16MHz 连通性:I²C,SPI,UART/USART 外围设备:欠压检测/复位,POR,PWM,WDT 输入/输出数:32 程序存储器容量:32KB(16K x 16) 程序存储器类型:闪存 EEPROM 大小:1K x 8 RAM 容量:2K x 8 电压 - 电源 (Vcc/Vdd):2.7 V ~ 5.5 V 数据转换器:A/D 8x10b 振荡器型:内部 工作温度:-40°C ~ 125°C 封装/外壳:44-TQFP 包装:剪切带 (CT) 其它名称:ATMEGA324P-B15AZCT
MC68HC706P6ACDW 制造商:Motorola Inc 功能描述: