ACE5372

Low Power Real-Time Clock (RTC)

VER 1.2

26

Typical Applications

Example of Circuit

ACE5372

ACE5372

(A)

(B)

1.Mount the high-and low-frequency by-pass capacitors C0 and C1 (TYP. C1=10uF, C2=0.1uF)

2.The typical volume of pull-up resistance R0~R3 is 10KΩ

4.Connect the pull-up resistor of the INTRA pin or the INTRB pin to two different positions depending

battery back-up:

A. when the spare battery supplies power, INTRA (B) is not used.

B. when the spare battery supplies power, INTRA (B) is used.

Example of Interface Circuit to the CPU

ACE5372