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HT3421A

Holtek
Part Number HT3421A
Manufacturer Holtek
Description 41 Matrix Key Multi-Function Piano
Published Dec 18, 2013
Detailed Description HT3421A 41 Matrix Key Multi-Function Piano with a Memory Features • • • • • • • Operating voltage: 2.4V~5V System opera...
Datasheet PDF File HT3421A PDF File

HT3421A
HT3421A

Overview
HT3421A 41 Matrix Key Multi-Function Piano with a Memory Features • • • • • • • Operating voltage: 2.
4V~5V System operating frequency: 512KHz 12 × 7 matrix input keys Auto power-off Power ON/OFF toggle input 41 tones, tone area: G2~B5 8 rhythms • • • • • • 8 timbres 16 steps of tempo speed 4 pulsatile sounds 12 demo songs Memory function with 62 notes 40 pin dual-in-line package General Description The HT3421A is a 41-key musical instrument LSI implemented in the CMOS technology.
The chip provides 8 rhythms, 8 timbres, 4 pulsatile sounds, 12 demo songs, and a 62-note memory storage function.
The 12 × 7 matrix control keys of the HT3421A control both basic keys and function selection inputs.
In the Memory mode, the chip can store a tone of 62 notes.
Pressing of the Replay key plays the stored songs, or pressing of OKP1 or OKP2 plays the stored songs tone by tone.
In the Demo mode, one of the 12 demo songs can be played.
The timbre of the demo song can also be altered according to th...


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