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BQ2204APN

X4 SRAM Nonvolatile Controller Unit

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BQ2204APN General Description

The CMOS bq2204A SRAM Non-volatile Controller Unit provides all necessary functions for converting up to four banks of standard CMOS SRAM into nonvolatile read/write memory.

A precision comparator monitors the 5V VCC input for an out-of-tolerance condi-tion. When out-of-tolerance is detected, the four conditioned chip-enable outputs are forced inactive to write-protect up to four banks of SRAM.

During a power failure, the external SRAMs are switched from the VCC supply to one of two 3V backup sup-plies. On a subsequent power-up, the SRAMs are write-protected until a power-valid condition exists.

During power-valid operation, a two-input decoder transparently selects one of up to four banks of SRAM.

bq2204apn

Key Features

  • Power monitoring and switching for 3-volt battery-backup applications
  • Write-protect control
  • 2-input decoder for control of up to 4 banks of SRAM
  • 3-volt primary cell inputs
  • Less than 10ns chip-enable propagation delay
  • 5% or 10% supply operation

Specifications

Vin (max) (V) 5.5 Features 4-Bank SRAM, CMOS, Non-volatile controller, Write-protection
Device type Memory device Operating temperature range (°C) -40 to 85, 0 to 70
Rating Catalog Communication interface No interface
Operating current (typ) (µA) 3000 feature-type
feature-battery-type feature-process-technology
feature-maximum-supply-current-ma feature-minimum-operating-supply-voltage-v
feature-maximum-operating-supply-voltage-v feature-output-voltage-v
feature-output-current-ma feature-maximum-power-dissipation-mw
feature-packaging Tube feature-rad-hard
feature-pin-count 16 feature-supplier-package PDIP
feature-standard-package-name DIP feature-cecc-qualified No
feature-esd-protection feature-military No
feature-aec-qualified No feature-aec-qualified-number
feature-eccn-code EAR99 feature-svhc No
feature-svhc-exceeds-threshold No

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shipping Shipping And Packing
Shipping Method

Our products are mainly transported and delivered by DHL, FedEx, UPS and other logistics partners on site -- Available to 200+ countries.

Packing

AVAQ determines and packages all devices based on electrostatic discharge (ESD) and moisture sensitivity level (MSL) protection requirements.

warranty Warranty & Returns

Our policies and procedures are designed to ensure compliance with various quality specifications and to quickly resolve quality-related issues.

We promise to provide 365 days quality assurance service for all our products.

If you have any dissatisfaction with the quality of the product you received, you can contact us for a refund or exchange, as long as the product is kept in its original condition.

Ratings and Reviews

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C
C**b 05/22/2021

Diodes switch first quickly, and then switch to a slow smooth mode, and so on cycle. In the description they are fast. Therefore, only 4 stars. Delivery is extremely slow. in tula, no longer hoped to receive.

1

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Availability: 7170 PCS

Qty. Unit Price(USD) Ext. Price
1+ $24.189 $24.19
200+ $9.361 $1,872.20
500+ $9.032 $4,516.00
1000+ $8.870 $8,870.00

The prices below are for reference only.