SRAM Nonvolatile Controller IC For 4 SRAM Banks

The CMOS BQ2204A SRAM Non-volatile Controller Unit provides all necessary functions for converting up to four banks of standard CMOS SRAM into nonvolatile read/write memory.
A precision Comparator monitors the 5V VCC input for an out-of-tolerance condi-tion. When out-of-tolerance is detected, the four conditioned chip-enable outputs are forced inactive to write-protect up to four banks of SRAM
During a power failure, the external SRAMs are switched from the VCC supply to one of two 3V backup sup-plies. On a subsequent power-up, the SRAMs are write-protected until a power-valid condition exists.
During power-valid operation, a two-input decoder transparently selects one of up to four banks of SRAM
By Texas Instruments
Part Manufacturer Description Datasheet Samples
BQ2204ASNTR Texas Instruments SRAM Nonvolatile Controller IC for 4 SRAM Banks 16-SOIC 0 to 70
BQ2204APN Texas Instruments SRAM Nonvolatile Controller IC for 4 SRAM Banks 16-PDIP 0 to 70
BQ2204ASN Texas Instruments SRAM Nonvolatile Controller IC for 4 SRAM Banks 16-SOIC 0 to 70
BQ2204ASN-N Texas Instruments SRAM Nonvolatile Controller IC for 4 SRAM Banks 16-SOIC -40 to 85
BQ2204ASNG4 Texas Instruments 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16, GREEN, PLASTIC, SOIC-16
BQ2204ASN-NTR Texas Instruments 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16, GREEN, PLASTIC, SOIC-16
BQ2204ASNTRG4 Texas Instruments 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16, GREEN, PLASTIC, SOIC-16
BQ2204ASN-NTRG4 Texas Instruments 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16, GREEN, PLASTIC, SOIC-16
BQ2204ASN-NG4 Texas Instruments 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16, GREEN, PLASTIC, SOIC-16
BQ2204A 's PackagesBQ2204A 's pdf datasheet
BQ2204APN PDIP
BQ2204ASN SOIC
BQ2204ASN-N SOIC
BQ2204ASN-NG4 SOIC
BQ2204ASN-NTR SOIC
BQ2204ASNG4 SOIC
BQ2204ASNTR SOIC
BQ2204ASNTRG4 SOIC




BQ2204A Pinout, Pinouts
BQ2204A pinout,Pin out
This is one package pinout of BQ2204A,If you need more pinouts please download BQ2204A's pdf datasheet.

BQ2204A Application circuits
BQ2204A circuits
This is one application circuit of BQ2204A,If you need more circuits,please download BQ2204A's pdf datasheet.


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