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BQ4802LYPW The BQ4802LYPW is a parallel-interface real-time clock/calendar IC from Texas Instruments with CPU supervisor, alarm, and watchdog timer. It operates from 2.4V to 4V, supports a 32.768 kHz crystal, and comes in a 28-pin TSSOP package.
Mfr Part #:

BQ4802LYPW

Available from 3 distributors
Mfr Name: Texas Instruments
Texas Instruments
The BQ4802LYPW is a parallel-interface real-time clock/calendar IC from Texas Instruments with CPU supervisor, alarm, and watchdog timer. It operates from 2.4V to 4V, supports a 32.768 kHz crystal, and comes in a 28-pin TSSOP package.
✓ Total Stock: 5,568 pcs
$ Price Range: $4.08

BQ4802LYPW Available from 3 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Components Technology Group, Inc. ✓
Non-Authorised Inventory information
3,500 pcs
On Request
3500 pcs On Request 1 On Request On Request On Request On Request On Request
Optech Co.,Limited ✓
Non-Authorised Inventory information
2,044 pcs
On Request
2044 pcs On Request 1 On Request On Request 24+ On Request On Request
MW.FEP S.p.A. ✓
Non-Authorised Inventory information
24 pcs
On Request
24 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

BQ4802LYPW Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Date Format
Features
Interface
Mounting Type
Number of Pins
Operating Temperature
Supplier Device Package
Termination Style
Time Format
Type
Voltage
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BQ4802LYPW Description

Short technical summary and product information.

The BQ4802LYPW is a low-power parallel real-time clock (RTC) from Texas Instruments that maintains time-of-day and calendar information in BCD format. It integrates a CPU supervisor, independent watchdog timer, programmable alarm, and battery-backup switchover for external SRAM. The device counts seconds through centuries and supports daylight savings and leap year adjustments.

 

Electrical specifications include a supply voltage range of 2.4V to 4V with a nominal 3.3V, and typical supply current of 1.5mA at 2.7V–3.6V. In backup mode the typical current is less than 500nA at a 3V backup battery. A 32.768kHz quartz crystal connects directly for time-base generation. The parallel interface supports a YY-MM-DD-dd date format and HH:MM:SS time format with 12/24 hour selection.

 

Typical applications include telecommunications base stations, servers, handheld data collection equipment, medical equipment, handheld instrumentation, and test equipment. It is also suited for fax machines, copiers, industrial control systems, point-of-sale terminals, data loggers, and computers.

 

The BQ4802LYPW is offered in a 28-pin TSSOP package measuring 0.173 inch (4.40 mm) width, with surface-mount gull-wing termination. The device is characterized for 0°C to 70°C operation.

BQ4802LYPW Quick Information

Product Type: Real Time Clock IC
Series: bq4802Y/bq4802LY
Canonical Name: BQ4802LYPW - Parallel Real-Time Clock/Calendar IC
Subcategory: Clock/Timing

BQ4802LYPW Compliance

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

BQ4802LYPW Estimated Pricing

Qty Low High
1+ $4.08 $4.08

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

BQ4802LYPW Features

  • Parallel interface with CPU supervisor and watchdog.
  • Backup current under 500nA at 3V.
  • Supports 3.3V nominal supply voltage.
  • 28-pin TSSOP with gull-wing leads.
  • Real-time clock with 32.768kHz crystal.

BQ4802LYPW Applications

  • Used in telecommunications base station equipment.
  • Used in servers and handheld data loggers.
  • Suitable for industrial control systems.
  • Ideal for medical instrumentation and data acquisition.

BQ4802LYPW FAQs

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

The supply voltage range is 2.4V to 4V, with a nominal supply voltage of 3.3V.

What package is the BQ4802LYPW available in?

It is available in a 28-pin TSSOP package (0.173" width), with surface-mount gull-wing termination. The supplier device package is 28-TSSOP.

What is the operating temperature range?

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

Is this component RoHS compliant?

The environmental data indicates RoHS3 compliant status, though the compliance is unverified.

What is the backup current in backup mode?

Typical backup current is 0.0005 mA (500 nA) in backup mode.

What crystal frequency does the RTC use?

The RTC uses a 32.768 kHz crystal.

What is the interface type?

The interface is parallel.

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