68000

16/32-bit Microprocessor

Pinout

68000, 68010 (DIP64)
       +---\/---+
    D4 |1     64| D5
    D3 |2     63| D6
    D2 |3     62| D7
    D1 |4     61| D8
    D0 |5     60| D9
   *AS |6     59| D10
  *UDS |7     58| D11
  *LDS |8     57| D12
  R/*W |9     56| D13
*DTACK |10    55| D14
   *BG |11    54| D15
*BGACK |12    53| GND
   *BR |13    52| A23
   VCC |14    51| A22
   CLK |15    50| A21
   GND |16    49| VCC
 *HALT |17    48| A20
  *RST |18    47| A19
  *VMA |19    46| A18
     E |20    45| A17
  *VPA |21    44| A16
 *BERR |22    43| A15
 *IPL2 |23    42| A14
 *IPL1 |24    41| A13
 *IPL0 |25    40| A12
   FC2 |26    39| A11
   FC1 |27    38| A10
   FC0 |28    37| A9
    A1 |29    36| A8
    A2 |30    35| A7
    A3 |31    34| A6
    A4 |32    33| A5
       +--------+


68000, 68010 (LCC68)
+---------------------------------------------------------------+
| 10 *DTACK     | 27 *IPL0      | 44 A13        | 61 D12        |
| 11 *BG        | 28 FC2        | 45 A14        | 62 D11        |
| 12 *BGACK     | 29 FC1        | 46 A15        | 63 D10        |
| 13 *BR        | 30 FC0        | 47 A16        | 64 D9         |
| 14 VCC        | 31            | 48 A17        | 65 D8         |
| 15 CLK        | 32 A1         | 49 A18        | 66 D7         |
| 16 GND        | 33 A2         | 50 A19        | 67 D6         |
| 17 GND        | 34 A3         | 51 A20        | 68 D5         |
| 18            | 35 A4         | 52 VCC        |  1 D4         |
| 19 *HALT      | 36 A5         | 53 A21        |  2 D3         |
| 20 *RST       | 37 A6         | 54 A22        |  3 D2         |
| 21 *VMA       | 38 A7         | 55 A23        |  4 D1         |
| 22 E          | 39 A8         | 56 GND        |  5 D0         |
| 23 *VPA       | 40 A9         | 57 GND        |  6 *AS        |
| 24 *BERR      | 41 A10        | 58 D15        |  7 *UDS       |
| 25 *IPL2      | 42 A11        | 59 D14        |  8 *LDS       |
| 26 *IPL1      | 43 A12        | 60 D13        |  9 R/*W       |
+---------------------------------------------------------------+

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)

LCC68
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)

External links

68000 page on Wikipedia
68000 page on CPU-World

Files

• 

  Signetics 68000 Datasheet

• 

  MC68HC000 Datasheet

• 

  SCN68000 Datasheet