Eric Smith
2016-09-05


Intel 3604
512x8 bipolar PROM, open collector

     +-----U-----+
A7   | 1      24 |  Vcc1
A6   | 2      23 |  A8
A5   | 3      22 |  Vcc2 (required on 3604-6 only)
A4   | 4      21 |  /CS1
A3   | 5      20 |  /CS2
A2   | 6      19 |  CS3
A1   | 7      18 |  CS4
A0   | 8      17 |  O8
O1   | 9      16 |  O7
O2   | 10     15 |  O6
O3   | 11     14 |  O6
GND  | 12     13 |  O4
     +-----------+


pin compatible with three-state:
  Intel 3624
  Signetics 82S141
  MMI 6341-1
  TI 28S46
  Harris 7641-5
  Raytheon 29625
  AMD 27S31
  National 74S474



SBC-201, -202 channel board A10

    O8 pin 17  AC6
    O7 pin 16  AC5
    O6 pin 15  AC4
    O5 pin 14  AC3
    O4 pin 13  AC2
    O3 pin 11  AC1
    O2 pin 10  AC0
    O1 pin  9   F6


SBC-201, -202 channel board A11

    O8 pin 17   F5
    O7 pin 16   F4
    O6 pin 15   F3
    O5 pin 14   F2
    O4 pin 13   F1
    O3 pin 11   F0
    O2 pin 10  FC3, FC2
    O1 pin  9  FC1, FC0


SBC-201, -202 channel board A12

    O8 pin 17  IN2
    O7 pin 16  IN1
    O6 pin 15  IN0
    O5 pin 14  OUT2
    O4 pin 13  OUT1
    O3 pin 11  OUT0
    O2 pin 10  SLK1 (S1)
    O1 pin  9  SLK0 (S0)


SBC-201, -202 channel board A13

    O8 pin 17  MASK7 (M7)
    O7 pin 16  MASK6 (M6)
    O6 pin 15  MASK5 (M5)
    O5 pin 14  MASK4 (M4)
    O4 pin 13  MASK3 (M3)
    O3 pin 11  MASK2 (M2)
    O2 pin 10  MASK1 (M1)
    O1 pin  9  MASK0 (M0)
