3-volt operation? Does whole system have operated volts? program 3-vol

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3-volt operation? Does whole system have operated volts? program 3-vol

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Atmel 3-Volt EPROM Family
3-volt operation? Does whole system have operated volts? program 3-volt EPROM? What happens 3-volt device volts? Atmel AT27LVxxxA series EPROMs designed operate over wide range supply voltages from volts. This offers designer opportunity take advantage greatly reduced power consumption volts. 3-volt series EPROMs specified draw maximum when operated 3.6VDC. This less than half specified maximum current standard EPROM operating 5.0VDC. Because supply voltage, power savings calculations even more dramatic: series compared (5.5V i.e. 27C040) standard fivevolt devices. That means much longer battery life. series CMOS inputs outputs specified levels 3volt CMOS levels (Rail-to-Rail). other words, device with 3.0VDC drive standard 5-volt logic devices data output lines making interface with 5-volt logic easy. series EPROMs even safely driven 5-volt signals, even though their 3.0VDC (please refer application note Interfacing Atmel EPROMs Mixed Three-Volt/FiveVolt Data this chapter). next question that comes mind "Why just EPROM volts while rest system uses volts?" reason your system very tight power budget, such battery operated equipment, daughter boards phone line powered products, times power savings might make significant difference. course your design might more than EPROM, memory, operating system, font storage maybe smart cards. this case total power savings very large. Remember each, EPROMs volts Watts instead 3-volt devices! When 3-volt devices programmer they work just like their standard Atmel 5-volt counterparts. Absolutely difference! Programming support already place widely available most programmers market today. AT27LVxxxA series EPROMs specified operate from volts. what happens when device operated above volts? speeds draws more power, never more than standard EPROM. This feature offers most flexibility system manufacturers.
Voltage EPROM CMOS EPROM
Rev. 0546A-10/98
EPROM
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0546A-10/98/xM
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3-volt operation? Does whole system have operated volts? program 3-vol

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