Products Mentioned

DS1744P Production
The DS1744 is a full-function, year-2000-compliant (Y2KC), real-time clock/calendar (RTC) and 32k x 8 NV SRAM. User access to all registers within the...
Datasheet
DS1744P on Analog.com

Table of Contents

For the DS1744W, what will be output of Bit B0 to B4 when B7 is high (battery low)?

You can only read from the DS1744 if VCC>VPF. So since the DS1744 in this instance has no VCC power, the data is intact and so you will still read the expected time from all registers when BF=1.
Tags: Parallel Address RTCs DS1744 DS1744W-120+ Real-Time Clocks 000095820