BQ4802LYPW

Overview

The BQ4802LYPW is a parallel real-time clock (RTC) manufactured by Texas Instruments, housed in a TSSOP-28 surface-mount package. It operates within a supply voltage range of 2.7 V to 3.6 V and supports an operating temperature range of 0°C to +70°C. The device features a YY-MM-DD-dd date format and HH:MM:SS (24-hour) time format. It includes 16 bytes of non-volatile SRAM storage capacity and incorporates a backup switching mechanism for continuous operation during power transitions.

Feature Summary

• Parallel RTC interface with alarm, calendar, and clock functions
• Integrated NV SRAM control with 16-byte storage capacity
• Backup switching capability for seamless power transition management

Applications

• Systems requiring precise timekeeping with parallel bus connectivity
• Applications utilizing non-volatile SRAM for data retention
• Industrial or commercial environments operating between 0°C and +70°C

Procurement Notes

This component is designated as End-of-Life (EOL). Manufacturers have issued discontinuation notifications indicating that production will cease, rendering the part obsolete. Verification of final shipment dates and last-time-buy windows is required before procurement planning.

Selection Notes

Designers should evaluate alternative RTC solutions due to the EOL status of the BQ4802LYPW. Selection criteria must account for the specific parallel interface requirements and the need for integrated NV SRAM control if legacy system compatibility is maintained.

Part Context

The BQ4802LYPW belongs to the BQ4802LY series of real-time clocks from Texas Instruments. This series is categorized under Clock & Timer ICs and is designed for applications necessitating accurate timekeeping alongside memory management capabilities via its parallel interface architecture.