PDF for LV8572A
LV8572A is NSC [National Semiconductor] company product |
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 LV8572A PDF Download |
File Size : | 329 KB |
| Manufacturer: | NSC [National Semiconductor] | |
| Description: |
...main system supply has been turned off, the LV8572A pro-vides circuitry to simplify design in battery backed systems.This switches over to the back up supply, and isolates itselffrom the host system. Figure 6 shows a simplified block... ...is enabled, the LV8572A will remain active for 480 ms afterpower fail is detected. This will enable the mP to performlast minute bookkeeping before total system collapse.When the host CPU is finished accessing the RTC it may... ...pin). Thus, writing a one to the Time Save bit enables both asoftware write or power fail write.SINGLE POWER SUPPLY APPLICATIONSThe LV8572A can be used in a single power supply applica-... |
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