INTEGRATED CIRCUIT CHIPS

This page is always being expanded.

There's an awful lot of chips to list,
so if you don't see what you're looking for,
please drop us an email at
Sales@Twobits.com.
We'll get right back to you.



CHIPS BEGINNING WITH 74LS _

Part number Description Price each Comments
BUY ONE NOW!
74LS00
74LS00 QUAD 2-INPUT NAND GATE
$5.
14 PIN DIP
(Dual in-line package)
74LS02
74LS02 QUAD 2-INPUT NOR GATE
$5.
14 PIN DIP
74LS04
74LS04 HEX INVERTER
$5.
14 PIN DIP
74LS06
74LS06 HEX INVERTING BUFFER DRIVER
$5.
14 PIN DIP
74LS08
74LS08 QUAD 2-INPUT AND GATE
$5.
14 PIN DIP
74LS10
74LS10 TRIPLE 3-INPUT NAND GATE
$5.
14 PIN DIP
74LS14
74LS14 HEX SCHMITT TRIGGER - INVERTING
$5.
14 PIN DIP
74LS16
74LS16 HEX INVERTER - OPEN COLLECTOR
$5.
14 PIN DIP
74LS20
74LS20 DUAL 4 INPUT NAND GATE
$5.
14 PIN DIP
74LS30
74LS30 DUAL 8 INPUT POS NAND GATE
$5.
14 PIN DIP
74LS32
74LS32 QUAD INPUT OR GATE
$5.
14 PIN DIP
74LS42
74LS42 4 TO 10 LINE, BCD TO DECIMAL DECODER
$5.
16 PIN DIP
74LS74
74LS74 DUAL D FLIP-FLOP
$5.
14 PIN DIP
74LS75
74LS75 4-BIT BISTABLE LATCHES
$5.
16 PIN DIP
7489
7489 RAM
$18.
16 PIN DIP
74LS90
74LS90 4 BIT COUNTER DIVIDE BY 2, 5
$5.
14 PIN DIP
74LS93
74LS93 4 BIT COUNTER DIVIDE BY 2, 8
$5.
14 PIN DIP
74LS107
74LS107 DUAL J-K FLIP-FLOP
$5.
14 PIN DIP
74LS123
74LS123 DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATORS
$5.
16 PIN DIP
74LS132
74LS132 QUAD 2 INPUT POS NAND
$5.
14 PIN DIP
74LS139
74LS139 DUAL 2 TO 4 LINE DECODER / DEMULTIPLEXER
$5.
16 PIN DIP
74LS154
74LS154 4 to 16 Line Decoder/Demultiplexer
$8.
24 PIN DIP
74LS155
74LS155 DUAL 2 TO 4 LINE DECODER / DEMULTIPLEXER W/ TOTEM POLE OUTPUTS
$5.
16 PIN DIP
74LS157
74LS157 2 TO 1 LINE DATA MUX
$5.
16 PIN DIP
74LS161
74LS161 SYNCHRONOUS 4 BIT COUNTER
$5.
16 PIN DIP
74LS164
74LS164 8 BIT PARALLEL OUT SERIAL SHIFT REGISTER
$5.
14 PIN DIP
74LS165
74LS165 8 BIT PARALLEL IN SERIAL OUT SHIFT REGISTER
$5.
16 PIN DIP
74LS174
74LS174 HEX D TYPE FLIP-FLOP SERIAL OUTPUTS
$5.
16 PIN DIP
74189
74189 RAM
$14.
16 PIN DIP
USE 7489
74LS190
74LS190 SYNCHRONOUS UP/DOWN BCD COUNTER
$5.
16 PIN DIP
74LS191
74LS191 SYNCHRONOUS UP/DOWN BINARY COUNTER
$5.
16 PIN DIP
74LS193
74LS193 SYNCHRONOUS UP/DOWN BINARY COUNTER DUAL CLOCK
$5.
16 PIN DIP
74LS194
74LS194 4 BIT BIDIRECTIONAL SHIFT REGISTER
$5.
16 PIN DIP
74LS197
74LS197 PRESETTABLE BINARY COUNTER/LATCH
$5.
14 PIN DIP
74LS240
74LS240 OCTAL BUFFER LINE DRIVER/RECIEVER 3 STATE INVERTING OUTPUTS
$5.
20 PIN DIP
74LS244
74LS244 OCTAL BUFFER LINE DRIVER/RECIEVER 3 STATE NON-INVERTING OUTPUTS
$5.
20 PIN DIP
74LS245
74LS245 OCTAL BUSS TRANSCIEVER 3 STATE NON-INVERTING OUTPUTS
$5.
20 PIN DIP
74LS247
74LS247 BCD TO 7 SEGMENT DECODER/DRIVER
$5.
16 PIN DIP
74LS253
74LS253 DUAL DATA SELECTOR/MUX 3 STATE OUTPUTS
$5.
16 PIN DIP
74LS257
74LS257 QUAD DATA SELECTOR/MUX NON-INVERTING 3 STATE OUTPUTS
$5.
16 PIN DIP
74LS258
74LS258 QUAD 2 INPUT MUX 3 STATE OUTPUTS
$5.
16 PIN DIP
74LS259
74LS259 8 BIT ADDRESSABLE LATCH
$5.
16 PIN DIP
74LS273
74LS273 OCTAL D TYPE FLIP-FLOP COMMON CLOCK
$5.
16 PIN DIP
74LS283
74LS283 4 BIT BINARY FULL ADDER
$5.
16 PIN DIP
74LS364
74LS364 OCTAL D FLIP-FLOP 3 STATE OUTPUTS
$5.
20 PIN DIP
74LS365
74LS365 HEX BUFFER/DRIVER 3 STATE OUTPUTS
$5.
20 PIN DIP
74LS367
74LS367 HEX BUFFER DRIVER 3 STATE OUTPUTS
$5.
16 PIN DIP
74LS368
74LS368 HEX BUSS DRIVER 3 STATE OUTPUTS
$5.
16 PIN DIP
74LS373
74LS373 OCTAL D LATCH 3 STATE OUTPUTS
$5.
20 PIN DIP
74LS374
74LS374 OCTAL D FLIP-FLOP 3 STATE OUTPUTS COMMON CLOCK
$5.
20 PIN DIP
74LS377
74LS377 OCTAL D FLIP-FLOP 3 STATE OUTPUTS COMMON ENABLE
$5.
20 PIN DIP
74LS379
74LS379 QUAD D FLIP-FLOP
$5.
16 PIN DIP
74LS393
74LS393 DUAL 4 BIT BINARY RIPPLE COUNTER
$5.
14 PIN DIP
74LS540
74LS540 OCTAL BUFFER/LINE DRIVER INVERTED 3 STATE OUTPUT
$5.
20 PIN DIP
74LS541
74LS541 OCTAL BUFFER/LINE DRIVER TRUE OUTPUT
$5.
20 PIN DIP
74HCT574
74HCT574
$5.
DIP


CHIPS BEGINNING WITH 40__

Part number Description Price each Comments
BUY ONE NOW!
4001
4001 QUAD 2 INPUT NOR GATE
$5.
14 PIN DIP
4011
4011 QUAD 2 INPUT NAND GATE
$5.
14 PIN DIP
4012
4012 DUAL 4 INPUT NAND GATE
$5.
14 PIN DIP
4013
4013 DUAL D TYPE FLIP FLOP
$5.
14 PIN DIP
4017
4017 DECADE COUNTER
$5.
16 PIN DIP
4020
4020 14 STAGE BINARY COUNTER
$5.
16 PIN DIP
4027
4027 DUAL J-K FLIP FLOP
$5.
16 PIN DIP
4028
4028 BCD TO DECIMAL DECODER
$5.
16 PIN DIP
4042
4042 QUAD CLOCKED D LATCH
$5.
16 PIN DIP
4049
4049 HEX BUFFER/CONVERTER INVERTING
$5.
16 PIN DIP
4050
4050 HEX BUFFER/CONVERTER NON-INVERTING
$5.
16 PIN DIP
4051
4051 ANALOG SINGLE 8-CHANNEL MUX/DEMUX
$5.
16 PIN DIP
4052
4052 ANALOG DIFFERENTIAL 4-CHANNEL
$5.
16 PIN DIP
4053
4053 TRIPLE 2-CHANNEL
$5.
16 PIN DIP
4055
4055 BCD TO 7 SEGMENT DECODER/DIVIDER WITH LATCH
$5.
16 PIN DIP
4066
4066 QUAD BILATERAL SWITCH
$5.
14 PIN DIP
4068
4068 8-INPUT NAND/AND GATE - HIGH VOLTAGE TYPE
$5.
14 PIN DIP
4069
4069 HEX INVERTER - HIGH VOLTAGE TYPE
$5.
14 PIN DIP
4070
4070 QUAD EXCLUSIVE-OR GATE
$5.
14 PIN DIP
4071
4071 QUAD 2-INPUT-OR GATE
$5.
14 PIN DIP
4081
4081 QUAD 2-INPUT-AND GATE
$5.
14 PIN DIP
4093
4093 QUAD 2-INPUT-NAND SCHMITT TRIGGER
$5.
14 PIN DIP
40175
40175 QUAD D-TYPE FLIP-FLOP
$5.
16 PIN DIP


CHIPS BEGINNING WITH 45__

Part number Description Price each Comments
BUY ONE NOW!
4502
4502 STROBED HEX INVERTER/BUFFER
$5.
16 PIN DIP
4511
4511 BCD-TO-7-SEGMENT LATCH DECODER DRIVER
$5.
16 PIN DIP
4514
4514 4-BIT LATCH/4-TO-16 DECODER
$5.
24 PIN DIP
4516
4516 PRESETTABLE UP/DOWN BINARY COUNTER
$5.
16 PIN DIP
4528
4528 DUAL RETRIGGERABLE/RESETTABLE MONOSTABLE MULTIVIBRATOR
$5.
16 PIN DIP
4536
4536 PROGRAMMABLE TIMER
$5.
16 PIN DIP
4539
4539 DUAL 4-CHANNEL DATA SELECTOR/MULTIPLEXER
$5.
16 PIN DIP
4543
4543 BCD-TO-7-SEGMENT LATCH/DECODER/DRIVER
$5.
16 PIN DIP
4572
MCM4572
$5.
16 PIN DIP


CHIPS BEGINNING WITH 68__

Part number Description Price each Comments
BUY ONE NOW!
6800
6800 PROCESSOR
$18.
40 PIN DIP
6802
6802 PROCESSOR
$22.
40 PIN DIP
6803
6803 PROCESSOR
$22.
40 PIN DIP
6808
6808 PROCESSOR
$22.
40 PIN DIP
6809
6809 PROCESSOR - INTERNAL CLOCK
$22.
40 PIN DIP
6809E
6809E PROCESSOR - EXTERNAL CLOCK
$22.
40 PIN DIP
6810
6810 RAM
$16.
24 PIN DIP
6820
6820 PERIPHERAL INTERFACE ADAPTER
$18.
40 PIN DIP
6821
6821 PERIPHERAL INTERFACE ADAPTER
$18.
40 PIN DIP


AUDIO AMPLIFIERS

Part number Description Price each Comments
BUY ONE NOW!
324
LM324
Audio amplifier used on Stern pinballs
$8.
DIP package
1875
LM1875
Audio amplifier used on WPC pinballs
$12.
5 PIN TO-220
377
LM377 = LM1877
Audio amplifier used on all Pac-man type boards
$18.
16 PIN DIP
3340
LM3340
Audio amplifier used as a pre-amp on pinball boards
$8.
DIP
3403
LM3403
Audio amplifier used on pinball boards
$12.
14 pin DIP
380
LM380-8
Audio amplifier
$6.
8 pin DIP
380
LM380-14
Audio amplifier
$6.
14 pin DIP
3900
LM3900
Audio amplifier
$14.
14 pin DIP
3730
MB3730
Audio amplifier used on GALAGA boards
$12.
7 PIN SIP
2002
TDA2002A
Audio amplifier used on Early Williams pinballs
$8.
5 PIN TO-220
2030
TDA2030A
Audio amplifier used on later Williams pinballs
$12.
5 PIN TO-220
741
LM741
Audio amplifier used as a pre-amp on pinball boards
$5.
8 pin DIP
833
LM833
Op amplifier
$7.
8 pin DIP


CHIPS BEGINNING WITH Z__

Part number Description Price each Comments
BUY ONE NOW!
Z80
Z80 PROCESSOR
$10.
40 PIN DIP
Z80CTC
Z80 CTC
$8.
DIP


RAM memory chips

We stock every memory device used in classic coin-op games;
if you don't see the one you want, just ask us!

2016
2016 CMOS RAM
$12.
24 PIN DIP
2064
2064 RAM
$12.
DIP
2101
2101 NMOS RAM
$9.
22 PIN DIP
2114
2114 RAM
$9.
18 PIN DIP
2115
2115 RAM
$14.
14 PIN DIP
2147
2147 RAM
$9.
16 PIN DIP
2148
2148 RAM
$16.
16 PIN DIP
4116
4116 RAM
$8.
16 PIN DIP
5101
5101 CMOS RAM
$17.
22 PIN DIP
5517
5517 CMOS RAM
$18.
24 PIN DIP
6116
6116 NMOS RAM
$18.
24 PIN DIP
6264
6264 RAM
$18.
28 PIN DIP
6810
6810 RAM
$12.
24 PIN DIP
7489
7489 RAM
$18.
16 PIN DIP
93415
93415 RAM
$14.
14 PIN DIP


TRANSISTORS

Part number Description Price each Comments
BUY ONE NOW!
15030
MJE15030 POSITIVE 100 VOLT TRANSISTOR
$7.
3 PIN TO-220
15031
MJE15031 NEGATIVE 100 VOLT TRANSISTOR
$7.
3 PIN TO-220
3055
2N3055 TRANSISTOR
$14.
TO-3
3440
2N3440 POSITIVE 350 VOLT TRANSISTOR
$6.
3 LEG METAL CAN
6122
2N6122 TRANSISTOR
$5.
TO-220
3904
2N3904 TRANSISTOR
$3.
TO-92
3906
2N3906 TRANSISTOR
$3.
TO-92
4401
2N4401 TRANSISTOR
$3.
TO-92
4403
2N4403 TRANSISTOR
$3.
TO-92
5401
2N5401 TRANSISTOR
$3.
TO-92
TIP31
TIP31 TRANSISTOR
$4.
TO-220
TIP32
TIP32 TRANSISTOR
$4.
TO-220
TIP36C
TIP36C TRANSISTOR
$7.
.
TIP42
TIP42 TRANSISTOR
$4.
TO-220
TIP120
TIP120 TRANSISTOR
$3.
TO-220
GUIC
78GU1C 4 pin 5 VOLT voltage regulator used on all Pac-Man and Ms. Pac-Man 78GUIC
$24.
4 PIN TO-220


ALWAYS USE A SOCKET!
Never solder a chip directly to the circuit board.

Part number Description Price each Comments
BUY ONE NOW!
SKT
DIP SOCKET
$2.00
DIP