Lexicon MPX-1 - MPX-1 Parts List

PARTS LIST FOR HPX-l
QTY DESCRIPTION
SEMICONDUCTORS
4
3
2
2
2
2
3
2
1
1
1
1
3
2
3
1
1
1
1
1
1
2
8
8
or
74LSOO
74LS02
74LS04
74LS08
74LS32
74LS38
74LS74
74LS138
74LS139
74LS160
74LS175
74LS240
74LS244
74LS373
74LS374
81LS95/97
81LS96/98
25LS2521
8085AH-1
8259A
2716
7805
2147
2167
Quad two input NAND (U7.24.31.47)
Quad two input NOR (U8,21,22)
Hex Inverter (U6,19)
Quad two input AND (U9,34)
Quad two input OR (U33,38)
Quad two input NAND O.C. (U25,35)
Dual D
Flip-Flop (U3,4,20)
One of eight decoder (U46.48)
Dual one of four decoder (U32)
4
bit counter (US)
Quad D
Latch (U23)
Octal Inverting Bus Driver (U45)
Octal Bus Driver (U39,40,43)
Octal Transparent Latch (U28.30)
Octal D Latch (U37,42.44)
Octal Buffer (U29)
Octal Inverting Buffer (U36)
Octal Comparator (U41)
6
MHz CPU (U18)
Interrupt Controller (U26)
~¥pe EPROM w/MPX software (U27)
5
Volt Positive Voltage Regulators (U1,2)
Type
RAM chips (U10-l7) 4K version
Type RAM chips (U10-17) 16K version
OTHER MISC. ELECTRICAL COMPONENTS
2 SIP Resistor Packs (R1,2)
2 4.7K ohm resistor (R3.4)
1 10K ohm resistor (R5)
4
10V tantalum capacitors (Cl-4)
41 Bypass Capacitors (all unmarked)
1
Crystal 12 MHz (Xl)
2 8 position DIP switch (81,2)
58