Product Summary

The BQ4802YPW is a parallel real-time clock. It is a low-power microprocessor peripheral that integrates a time-of-day clock, a century-based calendar, and a CPU supervisor, with package options including a 28-pin SOIC, TSSOP, or SNAPHAT that requires the bq48SH-28x6 to complete the two-piece module. The BQ4802YPW is ideal for fax machines, copiers, industrial control systems, point-of-sale terminals, data loggers, and computers. The applications of the BQ4802YPW are Telecommunications Base Stations, Servers, Handheld Data Collection Equipment, Medical Equipment, Handheld Instrumentation, Test Equipment.

Parametrics

BQ4802YPW absolute maximum ratings: (1)Input voltage range:–0.3V to 6.0V; (2)Operating temperature range:0℃ to 70℃; (3)Storage temperature range:–55℃ to 125℃; (4)Temperature under bias:–40℃ to 85℃; (5)Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds:300℃.

Features

BQ4802YPW features: (1)Real-Time Clock Counts Seconds Through Centuries in BCD Format: 3.3-V Operation; (2)On-Chip Battery-Backup Switchover Circuit With Nonvolatile Control for External SRAM; (3)Less Than 500 nA of Clock Operation Current in Backup Mode; (4)Microprocessor Reset With Push-Button Override; (5)Independent Watchdog Timer With Programmable Time-Out Period; (6)Power-Fail Interrupt Warning; (7)Programmable Clock Alarm Interrupt Active in Battery-Backup Mode; (8)Programmable Periodic Interrupt; (9)Battery-Low Warning; (10)28-pin SOIC, TSSOP, and SNAPHAT Package Options.

Diagrams

BQ4802YPW block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
BQ4802YPW
BQ4802YPW

Texas Instruments

Real Time Clock Parallel RTC

Data Sheet

0-1: $4.94
1-25: $4.16
25-100: $3.83
100-250: $3.49
BQ4802YPWG4
BQ4802YPWG4

Texas Instruments

Real Time Clock Parallel RTC

Data Sheet

0-1: $4.89
1-25: $4.16
25-100: $3.83
100-250: $3.49
BQ4802YPWRG4
BQ4802YPWRG4

Texas Instruments

Real Time Clock Parallel RTC

Data Sheet

Negotiable 
BQ4802YPWR
BQ4802YPWR

Texas Instruments

Real Time Clock Parallel RTC

Data Sheet

Negotiable