Page 17
ORIGINAL
IN-HOUSE
NUMBER
SN-74LS11N
SN-74LS14N
SN-74LS42N
SN-74LS74AN
SN-74LS153N
SN-74LS157N
SN-74LS161N
SN-74LS174N
SN-74LS193N
SN-74LS283N
SN-74LS374N
SN-74LS393N
SN-74LS624N
STK-6237
TC-9135
TC-9144
TDA-7000
TDA-8444
TLC-274B
TLC-549
TLJC-5411
UC-3637
UC-3825
UM-8250A
UPB-569C
1 MEG SIMM
6N138
68HC705C8
74AC157
ALTERNATE
IN-HOUSE
NUMBER
FIELD
REPLACEMENT
NUMBER
(NAND GATE)
ORDER
NUMBER
70420011
70420014
70420042
70420074
70420153
70420157
70420161
70420174
70420193
70420283
70420374
70420393
70420624
NOTES
TRIPLE 8 INPUT
SCHMITT TRIGGER
1 OF 10 DECODER
DUAL D FLIPFLOP
DUAL 4 IN MUX
QUAD 2 IN MUX
4 BIT BIN CTR.
HEX-D FLIP-FLOP
UP/DOWN BINARY
4 BIT FULL ADDR.
I.C.
COUNTER
I.C.
GRAPHIC EQ
HEX PANEL SW
LOGIC CHIP
FM TUNER I.C.
OCTUPLE 6 BIT
OP AMP
A/D CONVERTER
A/D PERIPHERAL
PWM CONTROLLER
PWM I.C.
UART
PRESCALER
1 MEG X 8 SIMM
OPTOCOUPLER
8 BIG MICRO CON.
OR GATE
70406237
70406237
70409135
70409144
70407000
(DAC)
70408444
70400274
(8 BIT)
70400549
70400541
70423637
70403825
70408250
70400569
70400248
70400138
70407058
QUAD EXCLUSIVE
70410157
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