Replacing the X1226, X1227, X1228 or X1288 RTC with the ISL12026, ISL12027, ISL12028
Intersil has recently introduced a new family of Real Time Clock (RTC) devices (the “ISL1202x” family) which include 4k of EEPROM. These devices are pin for pin compatible and include enhancements over an older family of devices (the “X122x” family). These enhancements include:
●Lower supply and battery backup current
●Reliable battery switchover
●Accurate Reset voltage trip points
●Oscillator functionality detection
Other enhancements are detailed in the data sheets. This Application note provides information for an engineer wishing to use the new devices to replace the older devices in their system.
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X1226 、 X1227 、 X1228 、 X1288 RTC 、 ISL12026 、 ISL12027 、 ISL12028 |
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Application note & Design Guide |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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April 13, 2007 |
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Rev 0.00 |
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AN1303 |
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530 KB |
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