Products Mentioned

DS1743 Obsolete
The DS1743 is a full-function, year-2000-compliant (Y2KC), real-time clock/calendar (RTC) and 8k x 8 nonvolatile static RAM. User access to all registers...
Datasheet
DS1743 on Analog.com

DS1746P Production
The DS1746 is a full-function, year-2000-compliant (Y2KC), real-time clock/calendar (RTC) and 128k x 8 nonvolatile static RAM. User access to all registers...
Datasheet
DS1746P on Analog.com

DS1743P Production
The DS1743 is a full-function, year-2000-compliant (Y2KC), real-time clock/calendar (RTC) and 8k x 8 nonvolatile static RAM. User access to all registers...
Datasheet
DS1743P on Analog.com

Table of Contents

Can the DS1746 directly replace the DS1743?

When using the DS1746 to replace the DS1743, it is necessary to make the following changes:
  • Connect the pin A16 (DS1746) to A12 (DS1743); 
  • then connect A15, A14, A13, A12 to the logic high voltage level (Vcc);
  • then connect A11 - A0 (DS1746) to A11 - A0 (DS1743).
Tags: DS1746W-120+ product Parallel Address RTCs DS1743 Real-Time Clocks Show More