HT3421A - 41 Matrix Key Multi-Function Piano
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
HT3421A 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
