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BQ4802YPW Texas Instruments BQ4802YPW is a 5V parallel real-time clock (RTC) with calendar, CPU supervisor, and external SRAM control. It is packaged in a 28-TSSOP surface mount package and operates from 0°C to 70°C.
Mfr Part #:

BQ4802YPW

Available from 4 distributors
Mfr Name: Texas Instruments
Texas Instruments
Texas Instruments BQ4802YPW is a 5V parallel real-time clock (RTC) with calendar, CPU supervisor, and external SRAM control. It is packaged in a 28-TSSOP surface mount package and operates from 0°C to 70°C.
✓ Total Stock: 7,927 pcs
$ Price Range: $5.21

BQ4802YPW Available from 4 distributors

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✓ Non-Authorised
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Romaks Technologies ✓
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5,615 pcs
On Request
5615 pcs On Request 1 On Request On Request On Request On Request On Request
Optech Co.,Limited ✓
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2,044 pcs
On Request
2044 pcs On Request 1 On Request On Request 24+ On Request On Request
Smaxon Electronics ✓
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173 pcs
On Request
173 pcs On Request 1 On Request On Request 07+ On Request On Request
MW.FEP S.p.A. ✓
Non-Authorised Inventory information
95 pcs
On Request
95 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.

BQ4802YPW Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
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Features
Function
Interface
Mounting Type
Number of Pins
Operating Temperature
Supplier Device Package
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Time Format
Type
Voltage
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BQ4802YPW Description

Short technical summary and product information.

The BQ4802YPW from Texas Instruments is a low-power real-time clock (RTC) and calendar with a parallel bus interface. It operates at a nominal 5V supply voltage and integrates a CPU supervisor, watchdog timer, and external SRAM non-volatile control. The device provides timekeeping in HH:MM:SS (12/24 hr) format and date in YY-MM-DD-dd format, with support for daylight savings, leap year, and alarms.

 

Electrical characteristics include a typical active supply current of 1.5 mA at 4.5 V to 5.5 V, and a maximum backup current of 500 nA in backup mode. The backup supply voltage range is 2.4 V to 4 V. The operating temperature range is 0°C to 70°C.

 

The RTC features a programmable clock alarm interrupt, periodic interrupt, power-fail interrupt, battery-low warning, and a microprocessor reset with push-button override. The device is housed in a 28-pin TSSOP package (9.7 mm × 6.4 mm) for surface mount assembly. Applications include telecommunications base stations, servers, handheld data collection, medical equipment, and industrial control systems.

BQ4802YPW Quick Information

Product Type: Real-time Clock (RTC)
Canonical Name: Texas Instruments BQ4802YPW Real-time Clock (RTC) / Calendar
Subcategory: Calendar

BQ4802YPW Compliance

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

BQ4802YPW Estimated Pricing

Qty Low High
1+ $5.21 $5.21

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

BQ4802YPW Features

  • Parallel RTC with calendar and alarm.
  • Integrated CPU supervisor and watchdog timer.
  • Less than 500 nA backup current.
  • 5V operation with battery backup switchover.
  • 28-pin TSSOP surface mount package.

BQ4802YPW Applications

  • Used in telecommunications base stations.
  • Suitable for servers and data loggers.
  • Ideal for medical equipment instrumentation.
  • Applied in industrial control systems.
  • Works in point-of-sale terminals.

BQ4802YPW FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage of the BQ4802YPW?

The nominal operating voltage is 5 V. The backup supply voltage range is 2.4 V to 4 V.

What is the package type of the BQ4802YPW?

It is a 28-TSSOP package (0.173", 4.40 mm width) for surface mount.

What is the operating temperature range?

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

Is the BQ4802YPW RoHS compliant?

RoHS3 compliant (unverified, low confidence).

What is the interface type?

The interface is parallel.

What is the backup current consumption?

Maximum backup current is less than 500 nA in backup mode.

What features does the BQ4802YPW include?

Features include 16 RTC bytes, external SRAM control, integrated CPU supervisor, alarm, daylight savings, leap year, watchdog timer, battery-low warning, power-fail interrupt, programmable clock alarm interrupt, programmable periodic interrupt, and microprocessor reset with push-button override.

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