P/N

Package
type

Function

Working
voltage

Data
sheet

Special instruction

 HK223-xx

   DIP-8L

  ◆ Single tone melody IC with 128 musical
      notes
  ◆ Built in 1 LED flash circuit
  ◆ One shot, level hold , power on / off for 
      3 trigger types

1.5V ~ 3.5V

HK223

Custom-made melody IC process rule

  Timing chart of several trigger types

 HK66T-xx

   TO92-3L

  ◆ Single tone melody IC with 64 musical
      notes 
  ◆ Always sound output when power be
      put on, very simple application circuit   

 1.5V ~ 4.5V

HK66T

- - -

 HK77T-xx

   TO92-3L

  ◆ Dual tone melody IC with 128 musical
      notes 
  ◆ Always sound output when power be
      put on, very simple application circuit   

 1.5V ~ 4.5V

HK77T

- - -

 HK226

   DIP-8L

  ◆ Key finder IC by whistle trigger type
  ◆ With a string "bi bi" sound output when
      detected whistle sound  
  ◆ Built in 1 LED flash circuit 

 2.2V ~ 5.0V

HK226

- - -

  Package
  type

  Working
  voltage

 HK221-x

   DIP-16L

  ◆ Single tone melody IC with 768 musical       notes , maximum to programming 24
      songs
  ◆ Trigger mode : one shot with re-trigger
      type
  ◆ Built in 1 LED flash circuit 

2.8V ~ 4.5V

HK221

HK221-2

Custom-made melody IC
process rule

HK221-3

 HK227-x

   DIP-16L

  ◆ Dual tone melody IC with 256 musical
      notes , maximum to 3 songs .
  ◆ Trigger mode : 3 alone song by 3 inde-
      pendence trigger key,  Can be option
      sequence songs output when trigger
      key ( SQ ) be touched
  ◆ Built in 1 LED flash circuit             

2.8V ~ 4.5V

HK227

- - -

 Sound output directly driver
 speaker ,  don't need a tran-
 sistor for audio amplifier 

 HK228-x

   DIP-16L

  ◆ Dual tone melody IC with 1024 musical
      notes , maximum to 24 songs 
  ◆ Trigger mode :  can be option 5 trigger
      types from 2 function pins ( SL , MODE )
       setting
  ◆ Built in 1 LED flash circuit
  ◆ Built in motor control circuit for output
      signal driving 

2.8V ~ 4.5V

HK228

HK228-1

 Sound output directly driver
 speaker ,  don't need a tran-
 sistor for audio amplifier   

HK228-2

 Package
 type

  Working
  voltage

 HK322-xx

   DIP-16L

  ◆ Harmonic melody sound IC with 512
      musical notes, maximum to 8 songs
  ◆ Trigger mode :  can be option 5 trigger
      types from 2 function pins ( SL , MODE )
       setting
  ◆ Built in 1 LED flash circuit
  ◆ Built in motor signal control circuit for
      motor driving   

2.8V ~ 4.5V

HK322

HK322 Sample

 Sound output directly driver
 speaker ,  don't need a tran-
 sistor for audio amplifier 

 HK326-xx

   DIP-16L

  ◆ Harmonic melody sound IC with 1024
      musical notes , maximum to 24 songs
  ◆ Trigger mode :  can be option 5 trigger
      types from 2 function pins ( SL , MODE )
       setting
  ◆ Built in 1 LED flash circuit
  ◆ Built in motor signal control circuit for
      motor driving  

2.8V ~ 4.5V

HK326

HK326 Sample

 Sound output directly driver
 speaker ,  don't need a tran-
 sistor for audio amplifier

 HK327-xx

   DIP-18L

  ◆  Harmonic melody sound IC with 2048
      musical notes , maximum to 25 songs
  ◆ Trigger mode :  can be option 4 trigger
      types from 2 function pins ( SL , MODE )
       setting
  ◆ Built in 4 LED flash circuit
  ◆ Built in motor signal control circuit for
      motor driving    
  ◆ 4 different envelop wave form & 6 diffe-
      rent frequency wave form    

2.8V ~ 4.5V

HK327

HK327
Sample1

HK327
Sample2

Package
Type

Working
voltage

 HK592

   TO92-4L

  ◆ " Ding - Dong " sound output with 2
      times when trigger key be touched 
  ◆ Trigger mode : one shot type
  ◆ Simple and lowest for assembly cost    

2.8V ~ 4.5V

HK592

HK592

  HK537 /
  HK527

   DIP-14L /
   DIP-8L

  ◆ Dual tone sound effect
  ◆ " Ding - Dong " sound output , can be
      option by 1 or 2 times effect
  ◆ Sound quality can be modifying by 
      envelope's resistor and capacitor value
      changing    

2.8V ~ 4.5V

 HK537
HK527

 HK537
 HK527

 HK522

   DIP-16L

  ◆ Dual tone sound effect
  ◆ " Ding - Dong ", " Ding - Ding " & west
       minister bell for 3 sounds available
  ◆ 3 sounds output by 3 alone trigger key
  ◆ Can be option 3 sounds sequence
      output by trigger key ( SQ )    

2.8V ~ 4.5V

HK522

HK522

 Package
Type

 Working
 voltage

 HK526B /
 HK526E
  

   DIP-18L /
   DIP-18L
   SOP-20L  

  ◆ Dual tone sound effect
  ◆ " Ding - Dong " and " Ding - Ding " for
      2 sounds available
  ◆ Can be option by 1 or 2 times for
      sound output 
  ◆ 12 address bus , maximum option to
      4096 set for encoding code      

 2.4V ~ 6.0V

 HK526B
short form

HK526B

HK526B

 Maximum working
 voltage at14.8V for
 HK526E ( trans-
 mitter part )

HK526E

 HK526C /
 HK526E 
  

   DIP-18L /
   DIP-18L 
   SOP-20L 

  ◆ Dual tone sound effect
  ◆ " Ding-Dong " , " Ding " and " Ding -
      Ding - Dong " for 3 sounds available
  ◆ Can be option by 1 or 2 times for
      sound output 
  ◆ 12 address bus , maximum option to
      4096 set for encoding code 

 2.4V ~ 6.0V

 HK526C
short form

HK526C

HK526C

 Same as above

HK526E

 Package
Type

Working
voltage

 HK622

   DIP-8L

  ◆ Telephone ring tone sound
  ◆ Built in 1 LED flash circuit
  ◆ Trigger mode : one shot , level hold &
      power on / off for 3 trigger types  

1.5V ~ 4.5V

HK622

 - - -

 HK623

   DIP-18L

  ◆  8 electronic sound effect for rifle gun ,
      rifle gun ( echo ) , TV game , dual tone
      bomb 1 , bomb 2 , electric gun &  
      machine gun  
  ◆ Built in 1 LED flash circuit
  ◆ Trigger mode : one shot , level hold
  ◆  8 alone sounds by 8 independence
      trigger key
  ◆  Can be option sequence sound output
       when trigger key ( SQ ) be touched

2.8V ~ 4.5V

HK623

    - - -

 HK626

   DIP-16L

  ◆ Telephone ring tone and bi bi ..sound
      for 2 sounds effect available
  ◆ Built in 1 LED flash circuit
  ◆ Trigger mode : one shot , level hold for
      2 trigger types   
  ◆  4 trigger key for 4 kinds effect output  

2.8V ~ 4.5V

HK626

 - - -

 HK628

   DIP-18L

   ◆  8 electronic sound effect for rifle gun ,
      rifle gun ( echo ) , TV game , dual tone
      bomb 1 , bomb 2 , electric gun  &  
      machine gun  
  ◆ Built in 5 LED flash circuit
  ◆ Trigger mode : one shot re-trigger
  ◆ 1 trigger key for 8 sounds output
  ◆ Can be option sequence or random
      sound output  

2.8V ~ 4.5V

HK628

 - - -

Package
Type

Working
voltage

 HK629

   DIP-18L

  ◆  3 sirens ( fire engine, ambulance siren
     , police car ) and 1 machine gun sound 
      for 4 sounds effect available
  ◆ Built in 2 LED flash circuit
  ◆ Trigger mode : 4 alone sound by 3
      independence trigger key
  ◆ Can be option sequence sound output
      when trigger key ( SQ ) be touched

2.8V ~ 4.5V

HK629

 - - -

 HK625

   DIP-16L

   ◆  4 sirens ( ki ki ki ...alarm , police car,
      fire engine, ambulance siren ) available
  ◆ Built in 1 LED flash circuit
  ◆ Trigger mode : one shot or level hold 
  ◆ 4 sound output by 4 alone trigger key

2.8V ~ 4.5V

HK625

 - - -

 HK620

   DIP-16L

  ◆  6 sirens ( ki ki ki ...alarm , oo oo oo...
      alarm , fire engine, ambulance siren ,
      police car 1 , police car 2 ) available
  ◆ Built in 1 LED flash circuit
  ◆ Trigger mode : level hold 
  ◆  6 sound output by 6 alone trigger key  

2.8V ~ 4.5V

HK620

 - - -

P/N

Package
Type

Functions

Working
voltage

Detail data
sheet

Special instruction

 HK16xx 

   DIP-18L
   SOP-20L

  ◆ By mask process for mass production
  ◆ Time capacity can be from  3 sec. to
      24 sec. have 6 different IC bodies be
      available 
  ◆ Maximum to 8 trigger keys 
  ◆ Trigger mode can be free programming 
      as flowing user demand by one shot ,
      level hold , on/off key ........
  ◆  I/O controller ports can be free pro-
      gramming as flowing user demand for
      ending signal , LED flash signal , chip
      enable signal .......  

2.4V ~ 5.1V

HK16xx
short form

HK16xx

Custom-made voice / speech
process rule

HK16xx bodies all for custom-
made project ,    No standard sound available

 HK17xx

   DIP-40L
   SOP-40L

  ◆ By mask process for mass production
  ◆ Time capacity can be from  40 sec. to
      360 sec. have 7 different IC bodies be
      available 
  ◆ Maximum to 64 trigger keys
  ◆ Can be addressable to control output 
      port of voice / speech message 
  ◆ Trigger mode can be free programming 
      as flowing user demand by one shot ,
      level hold , on/off key ........
  ◆  I/O controller ports can be free pro-
      gramming as flowing user demand for 
      ending signal , LED flash signal , chip
      enable signal .......

2.4V ~ 5.1V

 HK17xx
short form

HK17xx

Custom-made voice / speech
process rule

HK17xx bodies all for custom-
made project ,    No standard sound available

Package
Type

Working
voltage

 HK821

   DIP-40L

  ◆  8 sec. time capacity,sample rate base
      on 16KHz 
  ◆ Built in 128K bits RAM ,  level or edge
      triggers to recording and playback
      activated, built
  ◆ Built in " bi " sound generator to inform
      record cycle start or memory full     

1.5V ~ 3.5V

  HK821
short form

HK821

  Sound output directly driver
  speaker ,  don't need a tran-
  sistor for audio amplifier 

 HK827

   DIP-28L
   SOP-28L

  ◆ 20 ~ 30 sec. time capacity , voice
      playback trigger can be edge or level
      trigger
  ◆ Built eliminate battery backup circuit
  ◆ Maximum can be arriving  30 sec. base
      on sample rate setting    

2.2V ~ 6.2V

 HK827
short form

HK827

  Sound output directly driver
  speaker ,  don't need a tran-
  sistor for audio amplifier 

 HK828

   DIP-28L
   SOP-28L

  ◆ 40 ~ 60 sec. time capacity ,  voice
      playback trigger type can be edge or
      level trigger 
  ◆ Built in eliminate battery backup circuit
  ◆ Fully addressable to handling multi ple
      voice message  
  ◆ Maximum can be arriving  30 sec. base
      on sample rate setting   

2.2V ~ 6.2V

  HK828
short form

HK828

  Sound output directly driver
  speaker ,  don't need a tran-
  sistor for audio amplifier 

 Package
 Type

Working
voltage

 HK526E

   DIP-18L
   SOP-20L

  ◆ 12 address bus & 4 data bus 
  ◆ Can be option 4096 set for encoding
      code ( transmitting code ) 
  ◆ With HK526A decoder ( receiver ) for
      application of a pair    

3.0V ~ 15V

  HK526E
 short form

HK526E

  Typical working voltage at
  12V

 HK526A

   DIP-18L
   SOP-20L

  ◆ 12 address bus & 4 data bus 
  ◆ Can be option 4096 set for decoding
      code ( receiving code ) 
  ◆ With HK526 encoder ( transmitter ) for
      application of a pair

3.0V ~ 15V

  HK526A
 short form

HK526A

- - - 

 HK532

   DIP-18L
   SOP-20L

  ◆ 12 Tri-states address bus & 6 data bus
  ◆ Can be option 531441set for encoding
     code ( transmitting code )
  ◆ With HK532A decoder ( receiver ) for
      application of a pair       

3.0V ~ 15V

  HK532
 short form

HK532

  Typical working voltage at
  12V

 HK532A

   DIP-18L
   SOP-20L

  ◆ 12 Tri-states address bus & 6 data bus
  ◆ Can be option 531441 set for decoding
      code ( receiving code ) 
  ◆ With HK532 encoder ( transmitter ) for
      application of a pair        

3.0V ~ 15V

  HK532A
 short form

HK532A

 - - - 

 Package
 Type

Working
voltage

HK611

   DIP-8L

  ◆ Light control with 3 sections (  weak    
      light → middle light → strong light → 
     cut off )  by touch switch panel 
  ◆ Built in high sensitivity and stability
      circuit for touch switching
  ◆ Controlling AC110V / AC220V , 50Hz /
      60 Hz for power input      

5.0 V~ 6.8V

   HK611
 short form

HK611

 - - -

 HK612

   DIP-8L

  ◆ Light control with 4 sections (  weak    
      light → mood light → middle light →   
        strong light → cut off ) by touch
      switch panel 
  ◆ Built in high sensitivity and stability
      circuit for touch switching
  ◆ Controlling AC110V / AC220V , 50Hz /
      60 Hz for power input   

5.0V ~ 6.8V

   HK612
 short form

HK612

- - -

 HK526D /
 HK526E
 

   DIP-14L /
   DIP-18L
   SOP-20L

  ◆ Light control with 3 sections (  weak    
      light → middle light → strong light → 
      cut off ) from encoding code   
  ◆ Transmitter part ( HK526E ) of wireless
      control, 32 set for encoding / encoding
      code 
  ◆ Controlling AC110V / AC220V , 50Hz /
      60 Hz for power input   

2.4V ~ 10V

   HK526D
 short form

HK526D

   Maximum working voltage
   at 14.8V for HK526E ( tran-
   sitter part )

HK526E

 Package
 Type

Working
voltage

 HK3260 

   TO92-4L

  ◆ 1 LED flash , Built in oscillator resistor
  ◆ Trigger mode :  one shot type
  ◆ LED flash time and frequency be fixed ,
     duty cycle settled on 1/2       

1.3V ~ 5.0V

HK3260

 HK3258

   TO92-4L

  ◆ 1 LED flash , built in oscillator resistor
  ◆ Trigger mode :  on / off key ,  Can be
      direct power on / off when trigger pin
      be connected to Vss
  ◆ LED flash time and frequency be fixed  

1.3V ~ 5.0V

HK3258

HK922

   DIP-8L

  ◆ 2 LED flash , built in oscillator resistor
  ◆ Trigger mode : one shot or on / off key
      2 types 
  ◆ LED flash time and frequency be fixed 

1.3V ~ 5.0V

HK922

HK923

   DIP-16L

  ◆ 3 LED flash , built in oscillator resistor
  ◆ Trigger mode : on / off key type  
  ◆ Built in 3 flash frequencies ,  can be
      external parts to modify flash speed
  ◆ Can be option random or sequence    
      flash to LED output     

1.5V ~ 4.5V

HK923

HK925

   DIP-8L

  ◆ 3 LED flash 
  ◆ Trigger mode : one shot type
  ◆ Fixed 3 kinds different LED flash :
        (1) 3 LED all flash at same time
        (2) 3 LED all off 
        (3) 3 LED all light 
  ◆ Can be adjusting LED flash speed by
      external resistor value    

2.0V ~ 5.0V

HK925

HK926

   DIP-14L

  ◆ 5 LED flash 
  ◆ Trigger mode : one shot type
  ◆ Fixed 5 kinds different LED flash :
        (1) 5 LED all off 
        (2) 5 LED all flash at same time
        (3) 5 LED all light 
        (4) 5 LED sequence flash  
        (5) 5 LED random flash  
  ◆ Can be adjusting LED flash speed by
      external resistor 

2.0V ~ 5.0V

HK926

HK927

   DIP-16L

  ◆ 6 LED flash  
  ◆ Trigger mode : on / off key type
  ◆ Can be option flash frequency by built
      in or external resistor controlling
  ◆ External CDS element to control LED
      flash output be enable or not     

1.5V ~ 4.5V

HK927

HK929

   DIP-16L

  ◆ 6 LED flash  
  ◆ Trigger mode : one shot or on / off key
      type 
  ◆ Flash speed can be adjusting by exter- 
      nal resistor 
  ◆ Can be option sequence or random LED
      flash type  

1.5V ~ 4.5V

HK929

HK928

   DIP-20L

  ◆ 10 LED flash  
  ◆ Trigger mode : level hold 
  ◆ Can be expand to 40 LED or more for
      output driving 
  ◆ LED being sequence flash when trigger 
      key no any activated  
  ◆ Alone 4 trigger key for 4 different LED
      flash types  
  ◆ 4 different LED flash :
        (1) 10 LED all flash at same time  
        (2) 10 LED continuance flash 
        (3) 10 LED all light 
        (4) 10 LED advance flash & go back
             flash      

2.0V ~ 15V

HK928

   - - - 

 Package
 Type

Working
voltage

 HK722

   DIP-28L

  ◆ Audio echo processor , echo mode at  
     20.5ms ~ 163.8ms & surround mode at
     4.1ms ~ 41ms ( oscillator frequency
     base on 6 MHz )  
  ◆ Built in adjustable oscillator in body
  ◆ Built in power on reset circuit 
  ◆ Built in 30K bits SRAM for delay control 
  ◆ Direct control & micro-processor con-
      trol interface 
  ◆ Auto muting during power up and
      change mode         

4.5V ~ 5.5V

 HK722
short form

HK722

 - - -

 HK723

   DIP-16L

  ◆ Audio echo processor , Adjustable
      delay time setting between 30 ms ~
      700 ms for echo mode or surround
      mode
  ◆ Built in adjustable oscillator in body
  ◆ Built in power on reset circuit and A/D
      D/A circuit 
  ◆ Built in 45K bits SRAM for delay control  

4.5V ~ 5.5V

 HK723
short form

HK723

 HK725

   DIP-16L

  ◆ Audio volume controller IC 
  ◆ Built in 2 channels in IC body , sound
      volume attenuation control by UP /
      DOWN key  
  ◆ 0 dB ~ 66 dB attenuation by 2 dB each 
     step 
  ◆ Both of dual power suppliers of ( + )
      and ( - ) or single power supply can be
      used 

6.0V ~ 12V

 HK725
short form

HK725

 HK728

   DIP-16L

  ◆ Audio volume controller IC 
  ◆ Built in 2 channels in IC body, attenua-
      tion can be control by digital signal
      attached to the strobe ( ST ) , data ,
      clock pins  
  ◆ 0 dB ~ 66 dB attenuation by 2 dB each 
     step 
  ◆ Both of dual power suppliers of ( + )
      and ( - ) or single power supply can be
      used    

6.0V ~ 12V

 HK728
short form

HK728