參數(shù)資料
型號(hào)： MC68HC705SB7
廠商： FREESCALE SEMICONDUCTOR 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)： 73/170頁
文件大?。?/td> 2161K
代理商： MC68HC705SB7
GENERAL RELEASE SPECIFICATION
August 27, 1998
MOTOROLA
MC68HC05SB7
A-2
REV 2.1
A.3
PERSONALITY EPROM (PEPROM)
The 64-bit PEPROM is left blank for user programming.
A.4
MASK OPTION REGISTER
The EPROM programmable Mask Option Register is used for setting EPROM
security and enabling the external pin oscillator.
EPMSEC — EPROM Security Bit
1 =
Access to the EPROM array in non-user mode is denied.
0 =
Access to the EPROM array in non-user mode is enabled.
This write-only bit controls the non-user mode access to the EPROM array on the
MCU. When programmed to “1”, any accesses of the EPROM locations will return
undened results.
EPMSEC Programming
The state of the EPMSEC security bit should be programmed using a programmer
board (available from Motorola). In order to program the EPMSEC bit the desired
state must be written to the MOR address and then the MPGM bit in the EPROG
register must be used. The following sequence will program the EPMSEC bit:
1.
Write the desired data to the EPMSEC bit in MOR.
2.
Apply the programming voltage to the IRQ/VPP pin.
3.
Set the MPGM bit in the EPROG.
4.
Wait for the programming time (tMPGM).
5.
Clear the MPGM bit in the EPROG.
6.
Remove the programming voltage from the IRQ/VPP pin.
Once the EPMSEC bit has been programmed to a “1”, access to the contents of
the EPROM in the non-user mode will be denied. It is therefore recommended that
the User EPROM in the part rst be programmed and fully veried before setting
the EPMSEC bit.
OSCS — Oscillator Select Bit
1 =
External pin oscillator (EPO) enabled.
0 =
External pin oscillator (EPO) disabled.
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
MOR
R
EPMSEC
OSCS
------
$002F
W
reset:
UUUUUUUU
erased:
0
------
U = UNAFFECTED BY RESET
Figure A-2. MC68HC705SB7 Mask Option Register (MOR)
相關(guān)PDF資料
PDF描述
MC68HC05SU3AB 8-BIT, MROM, 2 MHz, MICROCONTROLLER, PDIP42
MC68HC05T2P 8-BIT, MROM, MICROCONTROLLER, PDIP40
MC68HC08AS32CFN 8-BIT, EEPROM, 8.4 MHz, MICROCONTROLLER, PQCC52
MC68HC08AS32VFN 8-BIT, EEPROM, 8.4 MHz, MICROCONTROLLER, PQCC52
MC68HC08AS32FN 8-BIT, EEPROM, 8.4 MHz, MICROCONTROLLER, PQCC52
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)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
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 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
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 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:HC05 標(biāo)準(zhǔn)包裝:1 系列:AVR® ATmega 核心處理器:AVR 芯體尺寸:8-位 速度:16MHz 連通性:I²C，SPI，UART/USART 外圍設(shè)備:欠壓檢測/復(fù)位，POR，PWM，WDT 輸入/輸出數(shù):32 程序存儲(chǔ)器容量:32KB（16K x 16） 程序存儲(chǔ)器類型:閃存 EEPROM 大小:1K x 8 RAM 容量:2K x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 8x10b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 125°C 封裝/外殼:44-TQFP 包裝:剪切帶 (CT) 其它名稱:ATMEGA324P-B15AZCT
MC68HC706P6ACDW 制造商:Motorola Inc 功能描述:
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

*
*
*