제품 상세 정보

Rating Catalog Features 1-Bank SRAM, CMOS, Non-volatile controller, Write-protection Operating current (typ) (µA) 3000 Vin (max) (V) 5.5 Operating temperature range (°C) -40 to 85
Rating Catalog Features 1-Bank SRAM, CMOS, Non-volatile controller, Write-protection Operating current (typ) (µA) 3000 Vin (max) (V) 5.5 Operating temperature range (°C) -40 to 85
SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm)
  • Power monitoring and switching for 3-volt battery-backup applications
  • Write-protect control
  • 3-volt primary cell inputs
  • Less than 10ns chip-enable propagation delay
  • 5% or 10% supply operation
  • Power monitoring and switching for 3-volt battery-backup applications
  • Write-protect control
  • 3-volt primary cell inputs
  • Less than 10ns chip-enable propagation delay
  • 5% or 10% supply operation

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 VCC input 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 VCC supply to one of two 3V backup supplies. On a subsequent power-up, the SRAM is write-protected until a power-valid condition exists.

The bq2201 is footprint- and timing-compatible with industry standards with the added benefit of a chip-enable propagation delay of less than 10ns.

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 VCC input 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 VCC supply to one of two 3V backup supplies. On a subsequent power-up, the SRAM is write-protected until a power-valid condition exists.

The bq2201 is footprint- and timing-compatible with industry standards with the added benefit of a chip-enable propagation delay of less than 10ns.

다운로드

기술 자료

검색된 결과가 없습니다. 검색어를 지우고 다시 시도하세요.
1개 모두 보기
상위 문서 유형 직함 형식 옵션 최신 영어 버전 다운로드 날짜
* 데이터 시트 SRAM Nonvolatile Controller Unit datasheet 1999. 9. 5

주문 및 품질