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AT27C256R-45JU PDF预览

AT27C256R-45JU

更新时间： 2024-12-01 12:28:35
品牌 Logo 应用领域
爱特美尔 - ATMEL 存储
页数 文件大小 规格书
13页 889K
描述
256K (32K x 8) One-time Programmable, Read-only Memory

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中文翻译

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AT27C256R-45JU 数据手册

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Features  
• Fast read access time – 45ns  
• Low-power CMOS operation  
– 100µA max standby  
– 20mA max active at 5MHz  
• JEDEC standard packages  
– 28-lead PDIP  
– 32-lead PLCC  
• 5V 10% supply  
• High reliability CMOS technology  
– 2,000V ESD protection  
256K (32K x 8)  
One-time  
– 200mA latchup immunity  
Programmable,  
Read-only Memory  
• Rapid programming algorithm – 100µs/byte (typical)  
• CMOS- and TTL-compatible inputs and outputs  
• Integrated product identification code  
• Industrial and automotive temperature ranges  
• Green (Pb/halide-free) packaging option  
Atmel AT27C256R  
1.  
Description  
The Atmel® AT27C256R is a low-power, high-performance, 262,144-bit, one-time pro-  
grammable, read-only memory (OTP EPROM) organized as 32K by 8 bits. It requires only  
one 5V power supply in normal read mode operation. Any byte can be accessed in less than  
45ns, eliminating the need for speed reducing WAIT states on high-performance micropro-  
cessor systems.  
The Atmel scaled CMOS technology provides low active power consumption and fast pro-  
gramming. Power consumption is typically only 8mA in active mode and less than 10µA in  
standby mode.  
The AT27C256R is available in a choice of industry-standard, JEDEC-approved, one-time  
programmable (OTP) PDIP and PLCC packages. All devices feature two-line control (CE,  
OE) to give designers the flexibility to prevent bus contention.  
With 32K byte storage capability, the AT27C256R allows firmware to be stored reliably and  
to be accessed by the system without the delays of mass storage media.  
The AT27C256R has additional features to ensure high quality and efficient production use.  
The rapid programming algorithm reduces the time required to program the part and guar-  
antees reliable programming. Programming time is typically only 100µs/byte. The  
integrated product identification code electronically identifies the device and manufacturer.  
This feature is used by industry-standard programming equipment to select the proper pro-  
gramming algorithms and voltages.  
0014O–EPROM–10/11  
1234567...13

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AT27C256R-45JU 替代型号

型号 品牌 替代类型 描述 数据表
AT27C256R-70JU ATMEL

类似代替

 OTP ROM, 32KX8, 70ns, CMOS, PQCC32, GREEN, PLASTIC, MS-016AE, LCC-32
AT27C256R-45JI ATMEL

功能相似

 256K 32K x 8 OTP CMOS EPROM

与AT27C256R-45JU相关器件

型号 品牌 获取价格 描述 数据表
AT27C256R-45JU-T MICROCHIP

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 		OTP ROM, 32KX8, 45ns, CMOS, PQCC32
AT27C256R-45LC ATMEL

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 		UVPROM, 32KX8, 45ns, CMOS, CQCC32, WINDOWED, CERAMIC, LCC-32
AT27C256R-45LI ATMEL

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 		UVPROM, 32KX8, 45ns, CMOS, CQCC32, WINDOWED, CERAMIC, LCC-32
AT27C256R-45PC ATMEL

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 		256K 32K x 8 OTP CMOS EPROM
AT27C256R-45PI ATMEL

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 		256K 32K x 8 OTP CMOS EPROM
AT27C256R-45PJ ATMEL

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 		暂无描述
AT27C256R-45PU ATMEL

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 		OTP ROM, 32KX8, 45ns, CMOS, PDIP28, 0.600 INCH, GREEN, PLASTIC, MS-011AB, DIP-28
AT27C256R-45RC ATMEL

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 		256K 32K x 8 OTP CMOS EPROM
AT27C256R-45RCT/R ATMEL

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 		OTP ROM, 32KX8, 45ns, CMOS, PDSO28, 0.330 INCH, PLASTIC, SOIC-28
AT27C256R-45RI ATMEL

获取价格

 		256K 32K x 8 OTP CMOS EPROM

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