Metodo di pagamento
DS1312+
Nonvolatile Controller with Lithium Battery Monitor
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Produttore:
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ProduttorePart #:
DS1312+
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Scheda dati:
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packingQty:
Tube,50
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packingOption:
Tube
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tempRange:
-40 to 85C
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EDA/CAD Modelli:
Disponibilità: 5521 PZ
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DS1312+ Descrizione generale
The DS1312 Nonvolatile Controller with Battery Monitor is a CMOS circuit which solves the application problem of converting CMOS RAM into nonvolatile memory. Incoming power is monitored for an out-of-tolerance condition. When such a condition is detected, chip enable is inhibited to accomplish write protection and the battery is switched on to supply the RAM with uninterrupted power. Special circuitry uses a low-leakage CMOS process which affords precise voltage detection at extremely low battery consumption. In addition to battery-backup support, the DS1312 performs the important function of monitoring the remaining capacity of the lithium battery and providing a warning before the battery reaches end-of-life. Because the open-circuit voltage of a lithium backup battery remains relatively constant over the majority of its life, accurate battery monitoring requires loaded-battery voltage measurement. The DS1312 performs such measurement by periodically comparing the voltage of the battery as it supports an internal resistive load with a carefully selected reference voltage. If the battery voltage falls below the reference voltage under such conditions, the battery will soon reach end-of-life. As a result, the Battery Warning pin is activated to signal the need for battery replacement.
Caratteristiche principali
- Converts CMOS SRAM into nonvolatile memory
- Unconditionally write-protects SRAM when VCC is out of tolerance
- Automatically switches to battery backup supply when VCC power failure occurs
- Monitors voltage of a lithium cell and provides advanced warning of impending battery failure
- Signals low-battery condition on active low
- Battery Warning output signal
- Optional 5% or 10% power-fail detection
- Space-saving 8-pin DIP and SOIC packages
- Optional 16-pin SOIC and 20-pin TSSOP versions reset processor when power failure occurs and hold processor in reset during system power-up
- Industrial temperature range of -40°C to +85°C
Specifiche
model | DS1312+ | packingQty | Tube,50 |
packingOption | Tube | lifeCycle | production |
tempRange | -40 to 85C |
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Prodotto 365 giorni
Qualità garantita
Promettiamo di fornire un servizio di garanzia della qualità di 365 giorni per tutti i nostri prodotti.
Disponibilità: 5521 PCS
+BOMQtà. | Prezzo unitario | Est. Prezzo |
---|---|---|
1+ | $12,665 | $12,66 |
200+ | $4,901 | $980,20 |
500+ | $4,730 | $2.365,00 |
1000+ | $4,644 | $4.644,00 |
I prezzi sottostanti sono solo di riferimento.
Tutte le distinte materiali (BOM) possono essere inviate via e-mail a [email protected], oppure compila il modulo sottostante per effettuare un preventivo per DS1312+, preventivi garantiti entro 12 ore.
EXCELLENT, SO BUY THEM!!!