# BQ4011 - Texas Instruments Nonvolatile SRAM

## Product Summary

The Texas Instruments BQ4011 is a 262,144-bit nonvolatile SRAM with 10-year data retention. It offers a maximum access time of 70 ns and comes in a 28-pin SOIC package.

## Product Information

| Field | Value |
| --- | --- |
| Part Number | BQ4011 |
| Manufacturer | Texas Instruments |
| Product Type | Nonvolatile SRAM |
| Category | Uncategorized |
| Subcategory | Nonvolatile SRAM |
| Package | 28-SOIC |
| Mounting Type | Surface Mount |

## Description

The BQ4011 from Texas Instruments is a 262,144-bit nonvolatile static RAM, organized as 32,768 words by 8 bits. It provides reliable nonvolatility with unlimited write cycles, similar to conventional SRAM. The device features automatic write-protection during power-up and power-down cycles, ensuring data integrity.

Key specifications include a minimum data retention of 10 years in the absence of power and a maximum access time of 70 ns. It operates from a single 5V supply with a negative supply tolerance of -5% or -10% depending on the variant. The BQ4011 is designed for industry-standard 28-pin pinouts and is socket-compatible with standard SRAMs, EPROMs, and EEPROMs.

This nonvolatile SRAM is suitable for applications requiring data persistence without the write-cycle limitations of EEPROMs. Its integrated control circuitry and lithium energy source provide a robust solution for data storage in systems where power loss is a concern. The device is available in a 28-pin SOIC surface-mount package.

## Key Specifications

| Specification | Value |
| --- | --- |
| Capacity | 262144-bit |
| Lead Style | Through Hole |
| Memory Type | Nonvolatile SRAM |
| Mounting Type | Surface Mount |
| Supply Voltage | 5 V |

## Availability and Pricing

| Field | Value |
| --- | --- |
| Stock Status | In Stock |
| Distributor Count | 1 |
| Total Stock | 60 |
| Price | $1.28 |
| Pricing Available | Yes |

## Estimated Pricing

| Quantity | Price Range |
| ---: | ---: |
| 1+ | $1.28 |

Estimated pricing is for guidance only and is not a live distributor offer.

## Distributor Offers

| Distributor | Stock | Unit Price | MOQ | Lead Time | Last Updated |
| --- | --- | --- | --- | --- | --- |
| Optech Co.,Limited | 60 |  |  |  |  |

## Features

- 10-year minimum data retention without power.
- Automatic write-protection during power cycles.
- 262,144-bit nonvolatile static RAM.
- Maximum access time of 70 ns.
- Industry-standard 28-pin SOIC package.

## Applications

- Data logging in embedded systems.
- Configuration data storage.
- Parameter memory for control units.
- Nonvolatile data backup.

## Compliance

| Field | Value |
| --- | --- |
| RoHS Status | RoHS3 Compliant |
| REACH Status | REACH Unaffected |
| Moisture Sensitivity Level | 1 Unlimited |

## Documents and Media

- Datasheet: https://static.distyparts.com/disty-files/datasheets/ec/41/7c/bq4011-66ddd424c516f314522947.pdf
- Image: https://static.distyparts.com/disty-files/images/23/f2/0a/47.png
- Product Page: https://distyparts.com/product/bq4011
- RFQ URL: https://distyparts.com/product/bq4011#rfq

## FAQs

### What is the data retention period for the BQ4011?

The BQ4011 offers a minimum data retention of 10 years in the absence of power.

### What is the capacity of the BQ4011?

The BQ4011 has a capacity of 262,144 bits.

### What is the maximum access time for the BQ4011?

The maximum access time for the BQ4011 is 70 ns.

### What is the operating supply voltage for the BQ4011?

The BQ4011 operates from a 5V supply.

### What type of memory is the BQ4011?

The BQ4011 is a nonvolatile SRAM.

### How is the BQ4011 protected during power transitions?

The BQ4011 features automatic write-protection during power-up and power-down cycles.

### What package is the BQ4011 available in?

The BQ4011 is available in a 28-pin SOIC package.

## Related Pages

- Manufacturer: https://distyparts.com/manufacturer/texas-instruments
- Category: https://distyparts.com/category/uncategorized/new-products
- Product Page: https://distyparts.com/product/bq4011
- Markdown File: https://distyparts.com/product/bq4011.md
- TXT File: https://distyparts.com/product/bq4011.txt