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6.
Rapid programming algorithm
A 100μs CE pulse width is used to program. The address is set to the first location. V CC is raised to 6.5V and V PP is raised to
13.0V. Each address is first programmed with one 100μs CE pulse without verification. Then a verification/reprogramming
loop is executed for each address. In the event a byte fails to pass verification, up to 10 successive 100μs pulses are
applied with a verification after each pulse. If the byte fails to verify after 10 pulses have been applied, the part is
considered failed. After the byte verifies properly, the next address is selected until all have been checked. V PP is then
lowered to 5.0V and V CC to 5.0V. All bytes are read again and compared with the original data to determine if the device
passes or fails.
Figure 6-1.
Rapid programming algorithm
8
Atmel AT27C256R
0014O–EPROM–10/11
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相关代理商/技术参数
AT27C256R-45RC
功能描述:IC OTP 256KBIT 45NS 28SOIC RoHS:否 类别:集成电路 (IC) >> 存储器 系列:- 标准包装:32 系列:- 格式 - 存储器:闪存 存储器类型:FLASH 存储容量:1M (128K x 8) 速度:120ns 接口:并联 电源电压:2.7 V ~ 3.6 V 工作温度:0°C ~ 70°C 封装/外壳:32-LCC（J 形引线） 供应商设备封装:32-PLCC 包装:管件 其它名称:AT49BV00112JC
AT27C256R-45RI
功能描述:可擦除可编程ROM 256Kb (32Kx8) OTP 5V 45ns RoHS:否 制造商:Maxim Integrated 类型: 存储容量:1024 bit 组织:1 K x 1 接口类型: 工作电流:5 uA 编程电压: 工作电源电压:2.8 V to 6 V 最大工作温度:+ 85 C 安装风格:Through Hole 封装 / 箱体:TO-92
AT27C256R-45RU
功能描述:可擦除可编程ROM 256Kb (32Kx8) OTP 5V 45ns RoHS:否 制造商:Maxim Integrated 类型: 存储容量:1024 bit 组织:1 K x 1 接口类型: 工作电流:5 uA 编程电压: 工作电源电压:2.8 V to 6 V 最大工作温度:+ 85 C 安装风格:Through Hole 封装 / 箱体:TO-92
AT27C256R-45TC
功能描述:可擦除可编程ROM 256k bit RoHS:否 制造商:Maxim Integrated 类型: 存储容量:1024 bit 组织:1 K x 1 接口类型: 工作电流:5 uA 编程电压: 工作电源电压:2.8 V to 6 V 最大工作温度:+ 85 C 安装风格:Through Hole 封装 / 箱体:TO-92
AT27C256R-45TI
功能描述:可擦除可编程ROM 256Kb (32Kx8) OTP 5V 45ns RoHS:否 制造商:Maxim Integrated 类型: 存储容量:1024 bit 组织:1 K x 1 接口类型: 工作电流:5 uA 编程电压: 工作电源电压:2.8 V to 6 V 最大工作温度:+ 85 C 安装风格:Through Hole 封装 / 箱体:TO-92
AT27C256R-45TU
功能描述:可擦除可编程ROM 256Kb (32Kx8) OTP 5V 45ns RoHS:否 制造商:Maxim Integrated 类型: 存储容量:1024 bit 组织:1 K x 1 接口类型: 工作电流:5 uA 编程电压: 工作电源电压:2.8 V to 6 V 最大工作温度:+ 85 C 安装风格:Through Hole 封装 / 箱体:TO-92
AT27C256R-55
制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:256K 32K x 8 OTP CMOS EPROM
AT27C256R-55DC
制造商:未知厂家 制造商全称:未知厂家 功能描述:x8 EPROM