Specification	BQ2201SN-NTR

Controller Type	Nonvolatile SRAM
Mounting Type	Surface Mount
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Package / Case	8-SOIC
Package / Case [x]	0.154 in
Package / Case [y]	3.9 mm
Supplier Device Package	8-SOIC
Voltage - Supply [Max]	5.5 V
Voltage - Supply [Min]	4.5 V

BQ2201 Series

SRAM Nonvolatile Controller IC for 1 SRAM Bank

Part	Controller Type	Voltage - Supply [Min]	Voltage - Supply [Max]	Mounting Type	Supplier Device Package	Operating Temperature [Max]	Operating Temperature [Min]	Package / Case	Package / Case [y]	Package / Case [x]	Package / Case	Package / Case
Texas Instruments BQ2201SNTR	Nonvolatile SRAM	4.5 V	5.5 V	Surface Mount	8-SOIC	70 °C	0 °C	8-SOIC	3.9 mm	0.154 in
Texas Instruments BQ2201PN	Nonvolatile SRAM	4.5 V	5.5 V	Through Hole	8-PDIP	70 °C	0 °C	8-DIP			0.3 in	7.62 mm
Texas Instruments BQ2201SN-N	Nonvolatile SRAM	4.5 V	5.5 V	Surface Mount	8-SOIC	85 °C	-40 °C	8-SOIC	3.9 mm	0.154 in
Texas Instruments BQ2201PNG4	Nonvolatile SRAM	4.5 V	5.5 V	Through Hole	8-PDIP	70 °C	0 °C	8-DIP			0.3 in	7.62 mm
Texas Instruments BQ2201SNG4	Nonvolatile SRAM	4.5 V	5.5 V	Surface Mount	8-SOIC	70 °C	0 °C	8-SOIC	3.9 mm	0.154 in
Texas Instruments BQ2201SN-NG4	Nonvolatile SRAM	4.5 V	5.5 V	Surface Mount	8-SOIC	85 °C	-40 °C	8-SOIC	3.9 mm	0.154 in
Texas Instruments BQ2201SN-NTR	Nonvolatile SRAM	4.5 V	5.5 V	Surface Mount	8-SOIC	85 °C	-40 °C	8-SOIC	3.9 mm	0.154 in

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tape & Reel (TR)	2500	$ 3.25
Texas Instruments	LARGE T&R	1	$ 4.11
		100	$ 3.35
		250	$ 2.63
		1000	$ 2.23

Description

General part information

BQ2201 Series

The CMOS bq2201 SRAM Nonvolatile Controller Unit provides all necessary functions for converting a standard CMOS SRAM into nonvolatile read/write memory.

A precision comparator monitors the 5V VCCinput for an out-of-tolerance condition. When out of tolerance is detected, a conditioned chip-enable output is forced inactive to write-protect any standard CMOS SRAM.

During a power failure, the external SRAM is switched from the VCCsupply to one of two 3V backup supplies. On a subsequent power-up, the SRAM is write-protected until a power-valid condition exists.

Documents

Technical documentation and resources

SRAM Nonvolatile Controller Unit datasheet

Data sheet