YMZ280B

8-Channel PCM/ADPCM Decoder

Pinout

           QFP64-(19x13)-20x14mm
+-------------------------------------------+
|  1 D0    | 20 MD2  | 33 MA5  | 52 MA23    |
|  2 D1    | 21 MD3  | 34 MA6  | 53 *MOE    |
|  3 D2    | 22 MD4  | 35 MA7  | 54 *MWR    |
|  4 D3    | 23 MD5  | 36 MA8  | 55 *MCE    |
|  5 D4    | 24 MD6  | 37 MA9  | 56 *DSPCS  |
|  6 D5    | 25 MD7  | 38 MA10 | 57 *DSPSCK |
|  7 D6    | 26 Vdd  | 39 MA11 | 58 Vdd     |
|  8 D7    | 27 Vss  | 40 MA12 | 59 DSPCDI  |
|  9 *TEST | 28 MA0  | 41 MA13 | 60 *CS     |
| 10 Vss   | 29 MA1  | 42 Vss  | 61 A0      |
| 11 XO    | 30 MA2  | 43 MA14 | 62 *WR     |
| 12 XI    | 31 MA3  | 44 MA15 | 63 *RD     |
| 13 EO    | 32 MA4  | 45 MA16 | 64 *IC     |
| 14 LRO   |         | 46 MA17 |            |
| 15 WCO   |         | 47 MA18 |            |
| 16 BCO   |         | 48 MA19 |            |
| 17 D0    |         | 49 MA20 |            |
| 18 MD0   |         | 50 MA21 |            |
| 19 MD1   |         | 51 MA22 |            |
+-------------------------------------------+

Frequency

Set reader to FREQ, put black probe to GND, red probe to 10,11,13,14,15 to measure various clocks

External links

Pulse-code modulation (PCM) page on Wikipedia
(ADPCM) page on Wikipedia

Files

• 
  YMZ280B Datasheet