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bq2201

Features: Power monitoring and switching for 3-volt battery-backup applications Write-protectcontrol 3-voltprimarycellinputs Less than 10ns chip-enable propagationdelay 5%or10%supplyoperationPinoutSpecifications Symbol Parameter Value Unit Notes VCC VCC relative to VSS -0.3 to 7.0 V...

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bq2201: Features: Power monitoring and switching for 3-volt battery-backup applications Write-protectcontrol 3-voltprimarycellinputs Less than 10ns chip-enable propagationdelay 5%or10%supplyoperationPinoutS...

bq2201 Data Sheet

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Part Number:
bq2201
Supply Ability:
5000

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  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

Power monitoring and switching for 3-volt battery-backup applications
Write-protectcontrol
3-voltprimarycellinputs
Less than 10ns chip-enable propagationdelay
5%or10%supplyoperation


Pinout

Connection Diagram


Specifications

Symbol Parameter Value Unit Notes
VCC VCC relative to VSS -0.3 to 7.0 V
VT DC voltage applied on any pin ex-
cluding VCC relative to VSS 		 -0.3 to 7.0 V  VT VCC + 0.3
TOPR Operating ambient temperature 0 to +70 °C Commercial
-40 to +85 °C Industrial "N"
TSTG Storage temperature -55 to +125 °C  
TBIAS Temperature under bias -40 to +85 °C  
TSOLDER Soldering temperature  260 °C For10seconds
IOUT VOUT current 200 mA  



Description

The CMOS bq2201 SRAM Nonvolatile Controller Unit provides all necessary functions for converting a standard CMOS SRAM into nonvolatile read/writememory.


A precision comparator monitors of bq2201 the 5V VCC input for an out-of-tolerance condition. When out of tolerance is detected, a conditioned chip-enable output is forced inactive to write-protectanystandardCMOSSRAM.


During a power failure, the external SRAM is switched from the VCC supply to one of two 3V backup sup-plies.On a subsequent power-up,the SRAM is write-protected until a power-validconditionexists.


The bq2201 is footprint- and timing-compatible with industry standards with the added benefit of a chip-enable propagation delay of less than 10ns.




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