- 制造厂商:TI
- 产品类别:电源管理
- 技术类目:电池管理 IC - 电池监测器和平衡器
- 功能描述:用于 4 SRAM 内存组的 SRAM 非易失性控制器 IC
- 点击这里打开及下载BQ2204A的技术文档资料
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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.
- Power monitoring and switching for 3-volt battery-backup applications
- Write-protect control
- 2-input decoder for control of up to 4 banks of SRAM
- 3-volt primary cell inputs
- Less than 10ns chip-enable propagation delay
- 5% or 10% supply operation
- Vin (Max) (V)
- 5.5
- Rating
- Catalog
BQ2204A的完整型号有:BQ2204APN、BQ2204ASN、BQ2204ASN-N、BQ2204ASNTR,以下是这些产品的关键参数及官网采购报价:
BQ2204APN,工作温度:0 to 70,封装:PDIP (N)-16,包装数量MPQ:25个,MSL 等级/回流焊峰值温度:N/A for Pkg Type,引脚镀层/焊球材料:NIPDAU,TI官网BQ2204APN的批量USD价格:3.934(1000+)
BQ2204ASN,工作温度:0 to 70,封装:SOIC (D)-16,包装数量MPQ:40个,MSL 等级/回流焊峰值温度:Level-2-260C-1 YEAR,引脚镀层/焊球材料:NIPDAU,TI官网BQ2204ASN的批量USD价格:4.098(1000+)
BQ2204ASN-N,工作温度:-40 to 85,封装:SOIC (D)-16,包装数量MPQ:40个,MSL 等级/回流焊峰值温度:Level-2-260C-1 YEAR,引脚镀层/焊球材料:NIPDAU,TI官网BQ2204ASN-N的批量USD价格:4.098(1000+)
BQ2204ASNTR,工作温度:0 to 70,封装:SOIC (D)-16,包装数量MPQ:2500个,MSL 等级/回流焊峰值温度:Level-2-260C-1 YEAR,引脚镀层/焊球材料:NIPDAU,TI官网BQ2204ASNTR的批量USD价格:3.442(1000+)
BQ2204APN,工作温度:0 to 70,封装:PDIP (N)-16,包装数量MPQ:25个,MSL 等级/回流焊峰值温度:N/A for Pkg Type,引脚镀层/焊球材料:NIPDAU,TI官网BQ2204APN的批量USD价格:3.934(1000+)
BQ2204ASN,工作温度:0 to 70,封装:SOIC (D)-16,包装数量MPQ:40个,MSL 等级/回流焊峰值温度:Level-2-260C-1 YEAR,引脚镀层/焊球材料:NIPDAU,TI官网BQ2204ASN的批量USD价格:4.098(1000+)
BQ2204ASN-N,工作温度:-40 to 85,封装:SOIC (D)-16,包装数量MPQ:40个,MSL 等级/回流焊峰值温度:Level-2-260C-1 YEAR,引脚镀层/焊球材料:NIPDAU,TI官网BQ2204ASN-N的批量USD价格:4.098(1000+)
BQ2204ASNTR,工作温度:0 to 70,封装:SOIC (D)-16,包装数量MPQ:2500个,MSL 等级/回流焊峰值温度:Level-2-260C-1 YEAR,引脚镀层/焊球材料:NIPDAU,TI官网BQ2204ASNTR的批量USD价格:3.442(1000+)