HT1130 microcontroller equivalent, 4-bit microcontroller.
* Operating voltage: 2.4V~3.3V
* 12 input lines
* Four output lines
* Five working registers
* Sound effect circuit
* 4K ´ 8 program ROM
* 128.
The device is ideally suited for multiple
* Internal timer overflow interrupt
* External interrupt
* One l.
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