The BQ2201SN-NTRG4 is a state-of-the-art Nonvolatile SRAM (NVSRAM) controller from Texas Instruments, designed to ensure the integrity of SRAM data during power loss. This innovative device is an ideal solution for a wide range of applications that require reliable data retention during unexpected power failures.
Key Features
- Automatic Power-Fail Detection: The BQ2201SN-NTRG4 has an in-built power-fail detection circuit that quickly senses when the supply voltage drops below a critical threshold, ensuring timely initiation of the nonvolatile save cycle.
- Integrated Energy Storage: To facilitate the save operation, it includes a controlled switch that connects an external capacitor used for energy storage, providing the necessary power to complete the store operation.
- Write Protection: During power-down, the device automatically write-protects the SRAM, preventing data corruption due to incomplete writes.
- Low-Power CMOS: Manufactured using CMOS technology, the BQ2201SN-NTRG4 offers low-power operation, which is critical for battery-powered and power-sensitive applications.
Applications
The BQ2201SN-NTRG4 is versatile and can be employed in various sectors, including:
- Industrial control systems
- Medical equipment
- Telecommunications infrastructure
- Data logging and storage systems
- Point of Sale (POS) terminals
Technical Specifications
Parameter
Value
Package Type
SOIC (D)
Operating Temperature
-40°C to +85°C
Supply Voltage (V<sub>CC)
4.5V to 5.5V
Supply Current (I<sub>CC)
Typical 170 μA
With its robust feature set and Texas Instruments' reputation for quality, the BQ2201SN-NTRG4 NVSRAM controller is a reliable choice for preserving critical data and ensuring the continuous operation of electronic systems.