YM2151

Equivalence table

Rebadged as	Found on PCB (manufacturer)
BS901	Afega, Danbi, F2System, Omega System, SemiCom
CA5101	Jeil Computer System
CY5001	Afega
KA51	Omega System, Semicom
PD2001	Afega

8-bit Microprocessor

Pinout

DIP40
         +---\/---+
     Vss | 1    40| *RES
     RDY | 2    39| out
     out | 3    38| S0
     IRQ | 4    37| in
      NC | 5    36| NC
     NMI | 6    35| NC
     YNC | 7    34| R
     Vcc | 8    33| D0
      A0 | 9    32| D1
      A1 |10    31| D2
      A2 |11    30| D3
      A3 |12    29| D4
      A4 |13    28| D5
      A5 |14    27| D6
      A6 |15    26| D7
      A7 |16    25| A15
      A8 |17    24| A14
      A9 |18    23| A13
     A10 |19    22| A12
     A11 |20    21| Vss
         +--------+

LCC68
+---------------------------------------------------------------+
|  1 DDD        | 18 IPL        | 44 A13        | 61 D12        |
|  2 DDD        | 19 FC2        | 45 A14        | 62 D11        |
|  3 DDD        | 20 FC1        | 46 A15        | 63 D10        |
|  4 DDD        | 21 FC0        | 47 A16        | 64 D9         |
|  5 DDD        | 22 DDD        | 48 A17        | 65 D8         |
|  6 DDD        | 23 A1         | 49 A18        | 66 D7         |
|  7 DDD        | 24 A2         | 50 A19        | 67 D6         |
|  8 GND        | 25 A3         | 51 A20        | 68 D5         |
|  9 GND        | 26 A4         | 52 VCC        |  1 D4         |
| 10 HALT       | 27 A5         | 53 A21        |  2 D3         |
| 11 RST        | 28 A6         | 54 A22        |  3 D2         |
| 12 VMA        | 29 A7         | 55 A23        |  4 D1         |
| 13 E          | 30 A8         | 56 GND        |  5 D0         |
| 14 VPA        | 31 A9         | 57 GND        |  6 AS         |
| 15 BERR       | 32 A10        | 58 D15        |  7 UDS        |
| 16 IPL2       | 33 A11        | 59 D14        |  8 LDS        |
| 17 IPL1       | 34 A12        | 60 D13        |  9 RW         |
+---------------------------------------------------------------+

SIL5
       +------+
      ++     5| V+
      |      4| OUT
      |      3| GND
      |      2| INV IN
      ++     1| NON INV IN
       +------+

Frequency

DIP64
Set reader to FREQ, put black probe to GND, red probe to 15 to measure CPU clock
Guru's comment: 15, 23/24/25(vsync sometimes)

PLCC68
Set reader to FREQ, put black probe to GND, red probe to 15 to measure CPU clock
Guru's comment: 16, 25/26/27(vsync sometimes) No frequency to check

External links

YM2151 page on Wikipedia

Files

• 
  YM2151 Datasheet