Application Circuits

Note: The connection of IRQ and RD pin can be selected depending on the requirement of the mC.

Adjust R (external pull-high resistance) to fit user s time base clock.

HT1622

14

April 21, 2000

BZ

IR Q

H T 1622

DA T A

1 / 4 B i as , 1 / 8 D u t y

CS

RD

WR

m C

LC D P a ne l

C O M 0 ~ C O M 7

S E G 0 ~ S E G 3 1

BZ

*

R

*

Pi e z o

VR

*

VD D

VL C D