HL6203-01 12 Christmas Songs Music-Box Melody

01. Jingle Bells 07. Hark! The Herald Angels Sing
02. O Come, All Ye Faithful 08. Silent Night
03. O Christmas Tree (O Tannenbaum) 09. Deck the Halls
04. Angels We Have Heard on High 10. The First Noel
05. O Little Town of Bethlehem 11. Joy to the World
06. The Twelve Days of Christmas 12. We Wish You a Merry Christmas

HL6203-06 12 Children's Favorites Music-Box Melody

01. The Farmer in the Dell 07. Battle Hymn
02. Yankee Doodle 08. Oh! My Darling
03. My Bonnie Lies Over the Ocean 09. Skip to My Lou
04. Down the Mountainside We Go 10. Swance River
05. Home on the Range 11. Did You Ever See a Lassie
06. Hush Little Baby 12. Camptown Race

HL6203-07 16 Classic Songs Clock Chime

(Melody + Clock Chime with 22:00 to 5:00 Silence)

01. 6:00 The Blue Bells of Scotland (6 Chimes) 09. 14:00 Toy Symphony (2 Chimes)
02. 7:00 The Farmer in the Dell (7 Chimes) 10. 15:00 Old Black Joe (3 Chimes)
03. 8:00 For Elise (8 Chimes) 11. 16:00 Die Lorelei (4 Chimes)
04. 9:00 Home on the Range (9 Chimes) 12. 17:00 Frohlicher Landman (5 Chimes)
05. 10:00 Long Long Ago (10 Chimes) 13. 18:00 Home Sweet Home (6 Chimes)
06. 11:00 Minute (11 Chimes) 14. 19:00 Swan Lake (7 Chimes)
07. 12:00 Traumerei (12 Chimes) 15. 20:00 Hush Little Baby (8 Chimes)
08. 13:00 Weigenlied (1 Chimes) 16. 21:00 Serenata Rimpinnt (9Chimes)


The HL6203 is a high-quality Music Box IC fabricated by CMOS process, which is designed to enhance the performance of HL6001 and HL6003 series and to reduce the external electronic component. While only one resistor is necessary but sound quality is improved. Instead of using the square waveform, which generates only the odd harmonics of the fundamental frequency, the circuit generates sound, which simulates some instrument with high quality sound effect.

There are five different operating modes in this circuit, i.e. ON/OFF mode, Trigger mode, Retrigger mode, Single trigger play all songs and Continuous mode. Besides, Level-hold mode can be used to replace ON/OFF mode by mask option. In order to drive the motor, there is one pin, i.e. MOTOR to drive the motor.

One LED output is provided to drive LED in accordance with the rhythm of melody. This circuit can drive a maximum of 32 songs, with 1024 total notes. The output power transistors are built in the HL6203 and the circuit can drive a 8 ohm speaker directly.


  • Dual tone melody
  • Music box timber
  • 1024 note ROM memory
  • 32 songs maximum
  • 5 operating modes:
    • ON/OFF
    • Trigger
    • Retrigger
    • Single trigger play all songs and Continuous (Level-hold mode can replace ON/OFF mode by mask option)
  • Built-in motor driver control circuit
  • Built-in LED display driver
  • Natural sound effect by internal digital signal processing

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