DESCRIPTION

· The bq2201 is a CMOS SRAM Nonvolatile Controller Unit designed to convert standard CMOS SRAM into nonvolatile read/write memory.

· It features a precision comparator for monitoring the 5V VCC input, ensuring write-protection during out-of-tolerance conditions.

· The device switches the external SRAM from the VCC supply to a 3V backup supply during power failures, maintaining data integrity.

· It is compatible with industry standards, offering a chip-enable propagation delay of less than 10ns.

FEATURES

· Power monitoring and switching for 3-volt battery-backup applications.

· Write-protect control to safeguard data during power failures.

· Supports 3-volt primary cell inputs for backup power.

· Chip-enable propagation delay of less than 10ns for fast operation.

· Operates with 5% or 10% supply tolerance, ensuring reliability in varying conditions.

APPLICATIONS

· Ideal for battery-backed SRAM systems requiring nonvolatile memory capabilities.

· Suitable for applications needing reliable write-protection during power fluctuations.

· Used in systems where fast chip-enable response is critical for performance.

· Applicable in environments with varying power supply conditions, ensuring data retention and integrity.