Replacing the x1226, x1227 or x1228 RTC with the ISL12026, ISL12026A, ISL12027 or 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-to-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 Technical Brief provides information for an engineer wishing to use the new devices to replace the older devices in their system.
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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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Dec 4, 2008 |
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Rev.0.00 |
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TB460 |
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420 KB |
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