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HK522
DOOR BELL IC
Page ( 2/1 )
3 KIND DOOR BELL SOUNDS
Features
*Built 256 musical notes ROM memory with dual tone musical effect in IC body
*3 independence song to be playing from 3 trigger pins ( TG1 , TG2 , TG3 )
*1 sequence trigger ( SQ pin ) for 3 songs output when SQ pin had sequence triggered
Application
Door bell , Door phone , Clock melody , Alarm system
Electrical Characteristics
PIN
TG1 TG2 TG3
SQ
SOUND LIST
“ DING DONG “ 1 time “ DING DING “ 1 time West Minister Bell Sequence Output From Sounds of TG1, TG2, TG3 pin
Characteristics Sym. Min.
Operating voltage Operating current Stand by current Oscillator frequency
VDD IOP ISB FOSC
1.8 ----------
Operating temperature TEMP 0
Driving current
IO 1
Application circuit
Typ.
3 0.1 1 100 25 ----
Max.
3.6 0.