A 32 kbit OTP(one-time programmable)memory for MCUs(micro-controller units)used in remote controllers was designed.This OTP memory is used for program and data storage.It is required to apply 5.5V to BL(bit-line)and 1...A 32 kbit OTP(one-time programmable)memory for MCUs(micro-controller units)used in remote controllers was designed.This OTP memory is used for program and data storage.It is required to apply 5.5V to BL(bit-line)and 11V to WL(word-line)for a OTP cell of 0.35μm ETOX(EEPROM tunnel oxide)type by MagnaChip.We use 5V transistors on column data paths to reduce the area of column data paths since they require small areas.In addition,we secure device reliability by using HV(high-voltage)transistors in the WL driver.Furthermore,we change from a static logic to a dynamic logic used for the WL driver in the core circuit.Also,we optimize the WD(write data)switch circuit.Thus,we can implement them with a small-area design.In addition,we implement the address predecoder with a small-area logic circuit.The area of the designed 32 kbit OTP with 5V and HV devices is 674.725μm×258.75μm(=0.1745mm2)and is 56.3% smaller than that using 3.3V devices.展开更多
提出了一种由高性价比的GPRS模块MC55和ARM7微控制器(Micro control unit,MCU)LPC2136组成的经济型用电监测终端的设计方案,说明了MCU用AT命令控制MC55在TCP/UDP/SMS 3种通信方式下连接主站并与之进行数据通信的方法,列举了应用程序的...提出了一种由高性价比的GPRS模块MC55和ARM7微控制器(Micro control unit,MCU)LPC2136组成的经济型用电监测终端的设计方案,说明了MCU用AT命令控制MC55在TCP/UDP/SMS 3种通信方式下连接主站并与之进行数据通信的方法,列举了应用程序的实现要点,阐述了如何利用MC55的FTP下载功能和LPC2136的在系统编程(IAP)功能实现终端软件的自主远程升级。紧凑的硬件设计有利于降低成本;多通信方式和工作模式的设计使终端可在不同工作环境下灵活配置,有效控制系统运行费用;远程升级的实现,简便了系统维护。展开更多
基金Project supported by the Second Stage of Brain Korea 21 Projects,Korea
文摘A 32 kbit OTP(one-time programmable)memory for MCUs(micro-controller units)used in remote controllers was designed.This OTP memory is used for program and data storage.It is required to apply 5.5V to BL(bit-line)and 11V to WL(word-line)for a OTP cell of 0.35μm ETOX(EEPROM tunnel oxide)type by MagnaChip.We use 5V transistors on column data paths to reduce the area of column data paths since they require small areas.In addition,we secure device reliability by using HV(high-voltage)transistors in the WL driver.Furthermore,we change from a static logic to a dynamic logic used for the WL driver in the core circuit.Also,we optimize the WD(write data)switch circuit.Thus,we can implement them with a small-area design.In addition,we implement the address predecoder with a small-area logic circuit.The area of the designed 32 kbit OTP with 5V and HV devices is 674.725μm×258.75μm(=0.1745mm2)and is 56.3% smaller than that using 3.3V devices.
文摘提出了一种由高性价比的GPRS模块MC55和ARM7微控制器(Micro control unit,MCU)LPC2136组成的经济型用电监测终端的设计方案,说明了MCU用AT命令控制MC55在TCP/UDP/SMS 3种通信方式下连接主站并与之进行数据通信的方法,列举了应用程序的实现要点,阐述了如何利用MC55的FTP下载功能和LPC2136的在系统编程(IAP)功能实现终端软件的自主远程升级。紧凑的硬件设计有利于降低成本;多通信方式和工作模式的设计使终端可在不同工作环境下灵活配置,有效控制系统运行费用;远程升级的实现,简便了系统维护。
