BQ4013MA-85

Memory IC Overview

The BQ4013MA-85 is a 128K x 8 Nonvolatile SRAM module manufactured by Texas Instruments. It integrates a standard CMOS static RAM with an internal lithium energy source to provide data retention for at least 10 years without system power. The device operates on a single 5-V supply and features an industry-standard 32-pin DIP package. It includes automatic write-protection during power-up and power-down cycles, ensuring memory integrity. The component supports unlimited write cycles and conventional SRAM operation.

Memory IC Feature Summary

• Integrates a 1-Mbit CMOS SRAM with an internal lithium coin cell for nonvolatility
• Provides automatic write-protection during power transitions to prevent data corruption
• Maintains data retention for over 10 years in the absence of system power
• Operates as a standard SRAM when valid supply voltage is present

Memory IC Applications

• Data logging systems requiring long-term storage without external batteries
• Industrial control applications needing reliable parameter retention
• Embedded systems utilizing standard SRAM pinouts with nonvolatile requirements

Memory IC Procurement Notes

Verify that the specific part number matches the required voltage tolerance and speed grade. Confirm the package type corresponds to the design footprint. Check the latest Texas Instruments documentation for current production status, as availability may be limited or subject to lifetime buy periods. Ensure compliance with environmental regulations relevant to the deployment region.

Memory IC Selection Notes

Select this component for designs requiring a drop-in replacement for standard SRAMs with added nonvolatile capabilities. The 5-V specification suits systems operating within standard logic levels. Consider the 32-pin DIP form factor for through-hole mounting requirements. Evaluate the 85 ns access time against system timing constraints to ensure adequate performance margins.

Memory IC Part Context

This device belongs to the bq4013 family of nonvolatile SRAMs from Texas Instruments. The family offers various density options and voltage tolerances, including 3.3-V variants. The MA suffix indicates the commercial temperature range and 5-V operation. These modules are designed to simplify nonvolatile memory implementation by eliminating external battery management circuitry.

Memory IC Replacement Considerations

Public confirmed substitute part numbers include BQ4013YMA-85 and BQ4013MA-120.