Integrated Circuits Inc.

aMTPxxM Series

Ver 1.1

23/30

12/16/2014

Using 4.5V Battery And Key Trigger With DAC Driver Speaker

Note

1.

PB0, PB1, PB2, PB3, PD1, PD2 are trigger pins (input).

2.

PD0 is busy pin (output).

3.

C1, C2 and C3 must be connected directly on the VDD, VDDA, VDDB and VSS, VSSA, VSSB

pins of the chip.

4.

R1 is optional for fast discharge of C1, C2, C3 and Crst when power off.