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AT27C4096 PDF预览

AT27C4096

更新时间: 2024-11-07 14:55:51
品牌 Logo 应用领域
美国微芯 - MICROCHIP 可编程只读存储器电动程控只读存储器
页数 文件大小 规格书
13页 792K
描述
The Microchip AT27C4096 is a low-power, high-performance 4-megabit One Time Programmable EPROM or

AT27C4096 数据手册

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Features  
Fast read access time – 55ns  
Low-power CMOS operation  
– 100µA max standby  
– 40mA max active at 5MHz  
JEDEC standard packages  
– 40-lead PDIP  
– 44-lead PLCC  
Direct upgrade from 512Kbit, 1Mbit, and 2Mbit  
Atmel® AT27C516, AT27C1024, and AT27C2048) EPROMs  
5V 10ꢀ supply  
4Mb (256K x 16)  
One-time  
High-reliability CMOS technology  
– 2,000V ESD protection  
Programmable,  
Read-only Memory  
– 200mA latchup immunity  
Rapidprogramming algorithm – 50µs/word (typical)  
CMOS- and TTL-compatible inputs and outputs  
Integrated product identification code  
Industrial temperature range  
Green (Pb/halide-free) packaging option  
Atmel AT27C4096  
1.  
Description  
The Atmel AT27C4096 is a low-power, high-performance, 4,194,304-bit, one-time pro-  
grammable, read-only memory (OTP EPROM) organized as 256K by 16 bits. It requires a  
single 5V power supply in normal read mode operation. Any word can be accessed in less  
than 55ns, eliminating the need for speed reducing WAIT states. The x16 organization  
makes this part ideal for high-performance, 16- and 32-bit microprocessor systems.  
In read mode, the AT27C4096 typically consumes 15mA. Standby mode supply current is  
typically less than 10µA  
The AT27C4096 is available in industry-standard, JEDEC-approved, one-time programma-  
ble (OTP) PDIP and PLCC packages. The device features two-line control (CE, OE) to  
eliminate bus contention in high speed systems.  
With high-density 256K word storage capability, the AT27C4096 allows firmware to be  
stored reliably and to be accessed by the system without the delays of mass storage media.  
The AT27C4096 has additional features that ensure high quality and efficient production  
use. The rapidprogramming algorithm reduces the time required to program the part and  
guarantees reliable programming. Programming time is typically only 50µs/word. The Inte-  
grated 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.  
0311J–EPROM–4/11  

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