BQ2204ASN
ActiveSRAM NONVOLATILE CONTROLLER IC FOR 4 SRAM BANKS
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BQ2204ASN
ActiveSRAM NONVOLATILE CONTROLLER IC FOR 4 SRAM BANKS
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Technical Specifications
Parameters and characteristics for this part
| Specification | BQ2204ASN |
|---|---|
| Controller Type | Nonvolatile SRAM |
| Mounting Type | Surface Mount |
| Operating Temperature [Max] | 70 °C |
| Operating Temperature [Min] | 0 °C |
| Package / Case | 16-SOIC |
| Package / Case [x] | 0.154 in |
| Package / Case [y] | 3.9 mm |
| Supplier Device Package | 16-SOIC |
| Voltage - Supply [Max] | 5.5 V |
| Voltage - Supply [Min] | 4.5 V |
BQ2204A Series
SRAM Nonvolatile Controller IC for 4 SRAM Banks
| Part | Controller Type | Supplier Device Package | Package / Case | Package / Case [x] | Package / Case [y] | Operating Temperature [Max] | Operating Temperature [Min] | Voltage - Supply [Min] | Voltage - Supply [Max] | Mounting Type | Package / Case | Package / Case |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments | Nonvolatile SRAM | 16-SOIC | 16-SOIC | 0.154 in | 3.9 mm | 70 °C | 0 °C | 4.5 V | 5.5 V | Surface Mount | ||
 Texas Instruments | Nonvolatile SRAM | 16-SOIC | 16-SOIC | 0.154 in | 3.9 mm | 85 °C | -40 °C | 4.5 V | 5.5 V | Surface Mount | ||
Texas Instruments | Nonvolatile SRAM | 16-SOIC | 16-SOIC | 0.154 in | 3.9 mm | 70 °C | 0 °C | 4.5 V | 5.5 V | Surface Mount | ||
Texas Instruments | Nonvolatile SRAM | 16-SOIC | 16-SOIC | 0.154 in | 3.9 mm | 85 °C | -40 °C | 4.5 V | 5.5 V | Surface Mount | ||
 Texas Instruments | Nonvolatile SRAM | 16-PDIP | 16-DIP | 70 °C | 0 °C | 4.5 V | 5.5 V | Through Hole | 0.3 in | 7.62 mm |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Tube | 160 | $ 6.63 | |
| Texas Instruments | TUBE | 1 | $ 7.54 | |
| 100 | $ 6.15 | |||
| 250 | $ 4.83 | |||
| 1000 | $ 4.10 | |||
Description
General part information
BQ2204A Series
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 VCCinput 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 VCCsupply to one of two 3V backup sup-plies. On a subsequent power-up, the SRAMs are write-protected until a power-valid condition exists.
Documents
Technical documentation and resources