參數(shù)資料
型號(hào)： MC68HC705P6AMDW
廠商： MOTOROLA INC
元件分類： 微控制器/微處理器
英文描述： 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDSO28
封裝： SOIC-28
文件頁數(shù)： 68/130頁
文件大?。?/td> 1541K
代理商： MC68HC705P6AMDW
Resets
Advance Information
MC68HC705P6A — Rev. 2.0
42
Resets
MOTOROLA
4.3 External Reset (RESET)
The RESET input is the only external reset and is connected to an
internal Schmitt trigger. The external reset occurs whenever the RESET
input is driven below the lower threshold and remains in reset until the
RESET pin rises above the upper threshold. The upper and lower
thresholds are given in Section 14. Electrical Specifications.
4.4 Internal Resets
The two internally generated resets are the initial power-on reset (POR)
function and the computer operating properly (COP) watchdog timer
function.
4.4.1 Power-On Reset (POR)
The internal POR is generated at power-up to allow the clock oscillator
to stabilize. The POR is strictly for power turn-on conditions and should
not be used to detect a drop in the power supply voltage. There is a 4064
internal clock cycle oscillator stabilization delay after the oscillator
becomes active.
The POR will generate the RST signal and reset the MCU. If any other
reset function is active at the end of this 4064 internal clock cycle delay,
the RST signal will remain active until the other reset condition(s) end.
4.4.2 Computer Operating Properly (COP) Reset
When the COP watchdog timer is enabled (COP bit in the MOR is set),
the internal COP reset is generated automatically by a timeout of the
COP watchdog timer. This timer is implemented with an 18-stage ripple
counter that provides a timeout period of 65.5 ms when a 4-MHz
oscillator is used. The COP watchdog counter is cleared by writing a
logical 0 to bit zero at location $1FF0.
The COP watchdog timer can be disabled by clearing the COP bit in the
MOR or by applying 2 x VDD to the IRQ/VPP pin (for example, during
bootloader). When the IRQ/VPP pin is returned to its normal operating
相關(guān)PDF資料
PDF描述
MC68HC705P6AMDWER2 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDSO28
MC68HC705P6ASD 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER
MC68HC705P6AMDWR2 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDSO28
MC68HC705P6ASD 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER
MC68HC705P6ACSD 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC68HC705P6AMP 制造商:Rochester Electronics LLC 功能描述:- Bulk
MC68HC705P6CDW 制造商:Motorola Inc 功能描述:
MC68HC705P6CP 制造商:Freescale Semiconductor 功能描述: 制造商:Motorola Inc 功能描述:
MC68HC705P6ECDW 制造商:Motorola Inc 功能描述: 制造商:MOTOROLA 功能描述:
MC68HC705SR3CP 功能描述:IC MCU 3.75K 2.1MHZ OTP 40-DIP RoHS:否 類別: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 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
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購

我的聯(lián)系方式

*
*
*