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BQ3285ES Texas Instruments BQ3285ES is a real-time clock IC with clock/calendar function and 242 bytes of NVSRAM. It features a parallel interface, alarm, daylight savings, and square wave output in a 24-SOIC package.
Mfr Part #:

BQ3285ES

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
Texas Instruments BQ3285ES is a real-time clock IC with clock/calendar function and 242 bytes of NVSRAM. It features a parallel interface, alarm, daylight savings, and square wave output in a 24-SOIC package.
✓ Total Stock: 747 pcs
$ Price Range: $7.82

BQ3285ES Available from 1 distributor

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✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Optech Co.,Limited ✓
Non-Authorised Inventory information
747 pcs
On Request
747 pcs On Request 1 On Request On Request 18+ On Request On Request
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BQ3285ES Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Date Format
Features
Interface
Memory Size
Mounting Type
Operating Temperature
Supplier Device Package
Time Format
Type
Voltage
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BQ3285ES Description

Short technical summary and product information.

The Texas Instruments BQ3285ES is a low-power CMOS real-time clock (RTC) IC providing a time-of-day clock and 100-year calendar with alarm features. It includes 242 bytes of general nonvolatile storage (NVSRAM) for data retention.

 

Key specifications include a parallel interface, support for 12/24 hour time format and YY-MM-DD-dd date format, and a supply voltage range of 2.5 V to 4 V. The device features alarm, daylight savings, leap year compensation, and a programmable square wave output. Typical supply current is 300 µA at 5V, with a typical quiescent current of 0.5 µA.

 

The BQ3285ES is designed for surface mount assembly in a 24-SOIC (0.295", 7.50mm Width) package and operates over a 0°C to 70°C temperature range. It is functionally compatible with the DS1285 and closely matches the MC146818A pin configuration.

BQ3285ES Quick Information

Product Type: Real-Time Clock (RTC) IC
Canonical Name: Texas Instruments BQ3285ES Real-Time Clock IC with 242B NVSRAM
Subcategory: Clock/Timing

BQ3285ES Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

BQ3285ES Estimated Pricing

Qty Low High
1+ $7.82 $7.82

Estimated market price range - modelled values for guidance only, not live distributor offers.

BQ3285ES Features

  • Real-time clock with 242 bytes NVSRAM.
  • Parallel interface with alarm and wake-up.
  • Low quiescent current of 0.5 µA typical.
  • Surface mount 24-SOIC package.
  • Operating temperature range 0°C to 70°C.

BQ3285ES Applications

  • Direct replacement for IBM AT-compatible computers.
  • System wake-up and alarm interrupt applications.
  • Timekeeping in industrial control systems.
  • Embedded systems requiring nonvolatile storage.

BQ3285ES FAQs

7 frequently asked questions generated from this part’s specifications.
What is the supply voltage range for the BQ3285ES?

The supply voltage range is 2.5 V to 4 V.

What is the operating temperature range of the BQ3285ES?

The operating temperature range is 0°C to 70°C.

What package does the BQ3285ES come in?

It comes in a 24-SOIC (0.295", 7.50mm Width) surface mount package.

Does the BQ3285ES have alarm functionality?

Yes, it includes alarm features.

What is the memory size of the BQ3285ES?

It has 242 bytes of NVSRAM memory.

What interface does the BQ3285ES use?

It uses a parallel interface.

What is the typical supply current of the BQ3285ES?

The typical supply current is 300 µA at 5V.

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