參數(shù)資料
型號: MC68HC705C9AFB
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, PQFP44
封裝: 10 X 10 MM, QFP-44
文件頁數(shù): 114/177頁
文件大?。?/td> 1941K
代理商: MC68HC705C9AFB
Memory
EPROM Security
MC68HC705C9A — Rev. 4.0
Advance Information
MOTOROLA
Memory
41
2.5 EPROM Security
A security feature has been incorporated into the MC68HC705C9A to
help prevent external access to the contents of the EPROM in any mode
of operation. Once enabled, this feature can be disabled only by
completely erasing the EPROM.
NOTE:
For OTP (plastic) packages, once the security feature has been enabled,
it cannot be disabled.
2.6 ROM
The bootloader ROM occupies 239 bytes in the memory space from
$3F00 to $3FEF. The bootloader mode provides for self-programming of
the EPROM array. See Appendix A. EPROM Programming.
2.7 I/O Registers
Except for the option register, mask option registers, and the C12 COP
clear register, all I/O, control and status registers are located within one
32-byte block in page zero of the address space ($0000–$001F). A
summary of these registers is shown in Figure 2-3. More detail about the
contents of these registers is given Figure 2-4.
相關(guān)PDF資料
PDF描述
MC68LNC705C9ACFN 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PQCC44
MC68HC705C9ACS 8-BIT, UVPROM, 2.1 MHz, MICROCONTROLLER
MC68HC705CT4FB 8-BIT, OTPROM, 2.048 MHz, MICROCONTROLLER, PQFP44
MC68HC705CT4FN 8-BIT, OTPROM, 2.048 MHz, MICROCONTROLLER, PQCC44
MC68HC705E5P 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDIP28
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC68HC705C9AFNE 功能描述:8位微控制器 -MCU 8B MCU 352 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 最大時鐘頻率:50 MHz 程序存儲器大小: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
MC68HC705C9AVFNE 功能描述:8位微控制器 -MCU 8B MCU 352 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 最大時鐘頻率:50 MHz 程序存儲器大小: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
MC68HC705E6CDW 制造商:Motorola Inc 功能描述: 制造商:MOTOROLA 功能描述:
MC68HC705G1B 制造商:Rochester Electronics LLC 功能描述:- Bulk
MC68HC705J1A 制造商:Freescale Semiconductor 功能描述: