C64 Breadbox     ---   1MB SIMM

U21  VCC  -   8  ---   1 - VCC
U21  /CAS -  15  ---   2 - /CAS
U21  D0   -   2  ---   3 - D0
U21  A0   -   5  ---   4 - A0
U21  A1   -   7  ---   5 - A1
U9   D1   -   2  ---   6 - D1
U21  A2   -   6  ---   7 - A2
U22  A3   -  12  ---   8 - A3
U22  GND  -  16  ---   9 - GND
U22  D2   -   2  ---  10 - D2
U22  A4   -  11  ---  11 - A4
U22  A5   -  10  ---  12 - A5
U10  D3   -   2  ---  13 - D3
U22  A6   -  13  ---  14 - A6
U23  A7   -   9  ---  15 - A7
U23  D4   -   2  ---  16 - D4
U9   GND  -  16  ---  17 - A8
U10  GND  -  16  ---  18 - A9
U11  GND  -  16  ---  19 - A10
U11  D5   -   2  ---  20 - D5
U23  /WE  -   3  ---  21 - /WE
U12  GND  -  16  ---  22 - GND
U24  D6   -   2  ---  23 - D6
U24  GND  -  16  ---  24 - A11
U12  D7   -   2  ---  25 - D7
                 ---  26 - Parity Out
U24  /RAS -   4  ---  27 - /RAS
                 ---  28 - /Parity CAS
                 ---  29 - Parity In
U24  VCC  -   8  ---  30 - VCC



C64 C-model      ---   1MB SIMM

U11  VCC  -   9  ---   1 - VCC
U11  /CAS -  16  ---   2 - /CAS
U10  D0   -   2  ---   3 - D0
U11  A0   -   6  ---   4 - A0
U11  A1   -  13  ---   5 - A1
U10  D1   -   3  ---   6 - D1
U11  A2   -  12  ---   7 - A2
U11  A3   -  11  ---   8 - A3
U11  GND  -   1  ---   9 - GND
U10  D2   -  15  ---  10 - D2
U10  A4   -   8  ---  11 - A4
U10  A5   -   7  ---  12 - A5
U10  D3   -  17  ---  13 - D3
U10  A6   -  14  ---  14 - A6
U10  A7   -  10  ---  15 - A7
U11  D4   -   2  ---  16 - D4
U11  GND  -  18  ---  17 - A8
U11  GND  -  18  ---  18 - A9
U10  GND  -   1  ---  19 - A10
U11  D5   -   3  ---  20 - D5
U10  /WE  -   4  ---  21 - /WE
U10  GND  -  18  ---  22 - GND
U11  D6   -  15  ---  23 - D6
U10  GND  -  18  ---  24 - A11
U11  D7   -  17  ---  25 - D7
                 ---  26 - Parity Out
U10  /RAS -   5  ---  27 - /RAS
                 ---  28 - /Parity CAS
                 ---  29 - Parity In
U10  VCC  -   9  ---  30 - VCC