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Package QFP144
First use 1999 ?
Used on MV1C, CDZ, ROM-Only boards...

Later version of the NEO-YSA chip. Contains a YM2610, the Z80 CPU and its RAM. It is also used to handle player input.

Can be used with a [BU9480F] 16bit stereo DAC.


Edit this pinout

Pin 23: Input, read REG_STATUS_B.

Test points

Waveforms on test points during crosshatch screen:

TP9, TP10 (under the board) and TP11 are all high.