BAB II
PEMBAHASAN
2.1.1 Sejarah
TTL ditemukan oleh James L. Buie dari TRW, "particularly suited to the newly developing integrated circuit design technology". IC TTL komersial pertama dibuat oleh Sylvania pada 1963, dinamai Sylvania Universal High-Level Logic family (SUHL). Peranti dari Sylvania ini digunakan dalam misil Phoenix. TTL menjadi terkenal pada pendesain sistem elektronik setelah Texas Instruments memperkenalkan seri 5400, dengan daerah suhu untuk militer, pada 1964 dan pada akhirnya seri 7400 pada 1966 dengan daerah suhu yang lebih rendah. Keluarga 7400 dari Texas Instrument menjadi standar industri. Peranti yang cocok dibuat oleh Motorola, AMD, Fairchild, Intel, Intersil, Signetics, Mullard, Siemens, SGS-Thomson/ST microelectronic dan National Semiconductor, dan banyak perusahaan lainnya, bahkan di bekas Uni Soviet. Tidak hanya membuat peranti TTL yang kompatibel, tetapi peranti kompatibel juga dibuat dengan menggunakan teknologi sirkuit lainnya. Istilah TTL digunakan pada banyak logika penyempurnaan yang menggunakan transistor dwikutub, dengan beberapa penyempurnaan di kecepatan dan kebutuhan daya selama lebih dari dua dekade. Keluarga populer yang terakhir adalah 74AS/ALS Advanced Schottky, dikenalkan pada 1985. Hingga 2009, Texas Instruments tetap memproduksi IC kegunaan umum dalam banyak keluarga teknologi usang, walaupun dengan harga yang semakin mahal. Biasanya, chip TTL memadukan tidak lebih dari beberapa ratus transistor. Fungsi yang dipunyai sebuah kemasan tunggal bervariasi dari beberapa gerbang logika hingga mikroprosesor. TTL juga menjadi penting karena harganya yang muram membuat teknik digital cukup ekonomis untuk menggantikan pekerjaan yang sebelumnya dilakukan oleh teknik analog. Kenbak-1, salah satu komputer pribadi pertama, menggunakan TTL untuk CPU daripada menggunakan mikroprosesor yang belum tersedia pada tahun 1971. 1973 Xerox Alto dan 1981 Star, yang mengenalkan GUI, menggunakan sirkuit TTL pada taraf ALU. Banyak komputer yang menggunakan logika kompatibel-TTL hingga tahun 1990-an. Hingga penemuan logika dapat diprogramkan, logika dwikutub tersendiri digunakan untuk percobaan dan pengembangan sirkuit digital terpadu lainnya.
2.3 Tabel Technical Spec IC
No IC
Fungsi logika
Teknologi
Level Tegangan
CAN00001
Quad Buffer
BICMOS
4.5V~5.5V
CAN00002
Octal Driver / Line Driver
BICMOS
4.5V~5.5V
CAN00003
Octal Driver / Line Driver
BICMOS
4.5V~5.5V
CAN00004
Octal Driver / Line Driver
CMOS
2.0V~6.0V
CAN00005
Octal Driver / Line Driver
CMOS
2.0V~6.0V
CAN00006
Octal Driver / Line Driver
CMOS
2.0V~6.0V
CAN00008
Octal Driver / Line Driver
CMOS
4.5V~5.5V
CAN00009
Octal Driver / Line Driver
CMOS
4.5V~5.5V
CAN00010
Single Bus Buffer Gate
CMOS
2V~5.5V
CAN00011
Quad Bus Buffer Gate
CMOS
4.5V~5.5V
CAN00012
Single Bus Buffer Gate
CMOS
4.5V~5.5V
CAN00013
Octal Bus Driver
TTL
4.5V~5.5V
CAN00014
Octal Driver / Line Driver
TTL
4.5V~5.5V
CAN00015
Octal Driver / Line Driver
TTL
4.5V~5.5V
CAN00016
Octal Driver / Line Driver
TTL
4.5V~5.5V
CAN00017
Octal Driver / Line Driver
TTL
4.5V~5.5V
CAN00018
Octal Driver / Line Driver
CMOS
3V~15V
7400 N
Quadruple door NOT - AND at 2 entries
7401 N
Quadruple door NOT - AND at 2 entries with open collector
7402 N
Quadruple door NOT - OR at 2 entries
7403 N
Quadruple door NOT - AND at 2 entries with open collector
7404 N
6 reversers
7405 N
6 reversers with open collector
7406 N
6 stages of attack reverser to open collector for 40 my
7407 N
6 stages of attack to open collector for 40 my
7408 N
Quadruple door AND at 2 entries
7409 N
Quadruple door AND at 2 entries with open collector
7410 N
Triple carries NOT - AND at 3 entries
7411 N
Triple carries AND to 3 entry
7412 N
Triple carries NOT - AND at 3 entries with open collector
7413 N
Double door NOT - AND at 4 entries
7414 N
6 reversers trigger
7416 N
6 reversers of powers to open collector
7417 N
6 stages of attack to open collector for 40 my
7420 N
Double door NOT - AND at 4 entries
7422 N
Double door NOT - AND at 4 entries with open collector
7423 N
Double door NOT - OR at 4 entries expansible and strobe
7425 N
Double door NOT - OR at 4 entries and strobe
7426 N
Quadruple door NOT - AND with 2 entries - High voltage
7427 N
Triple carries NOT - OR at 3 entries
7428 N
Quadruple NOR door at 2 entries
7430 N
Carry NOT - AND at 8 entries
7432 N
Quadruple door OR at 2 entries
7437 N
Quadruple door NOT - AND of power at 2 entries
7438 N
Quadruple door NOT - AND of power at 2 entries and open collector
7440 N
Double door NOT - AND of power at 4 entries
7442 N
Decimal decoder BCD
7443 N
Decoder excesses of 3 - decimal
7444 N
Decoder excesses of 3 Gray - decimal
7445 N
Decimal decoder BCD with open collector for 80 my and 30 V or 15 V
7446 AN
Decoder BCD 7 segments with open collector with 30 V/20 my
7447 AN
Decoder BCD 7 segments with open collector with 30 V/20 my
7448 N
Decoder BCD 7 segments
7450 N
Double door AND/OR - NOT to 2 X 2 entries
7451 N
Double door reverser AND/OR - NOT to 2 X 2 entries
7453 N
Carry reverser AND/OR - NOT to 4 X 2 entries expansible
7454 N
Carry reverser AND/OR - NOT to 4 X 2 entries
7460 N
Double door of multiplication at 4 entries
7470 N
Flip-flop JK to 2 X 3 entries
7472 N
Main flip-flop slave with 2 X 3 entries
7473 N
Main flip-flop slave with entry reset
7474 N
Double Flip-flop D synchronous
7475 N
Quadruple Flip-flop D asynchronous
7476 N
Double main Flip-flop JK slave with entries set and reset
7480 N
Full adder with 1 bit
7481 N
Memory with 16 bits writing/reading
7482 N
Full adder with 2 bits
7483 AN
Full adder with 4 bits
7484 AN
Memory with 16 bits writing/reading at 2 entries of writing and reading
7485 N
Binary comparator with 4 bits
7486 N
Quadruple door OR Exclusive
7489 N
Memory with 64 bits writing/reading with open collector
7490 AN
Decimal scaler
7491 AN
Register with shift with 8 bits series
7492 N
Divider by 12
7493 N
Binary counter
7494 N
Register with shift 4 bits at parallel entry
7495 AN
Register with shift 4 bits entered and 4 parallel ports
7496 N
Register with parallel shift 5 bits
7497 N
Divider of synchronous binary frequency programmable 6 bits
74100 N
Octo-Flip-failure D
74107 N
Double main Flip-flop JK slave with entry reset
74110 N
Main flip-flop JK slave with blocking of entry
74111 N
Double main Flip-flop JK slave with blocking of entry
74118 N
Sixfold Flip-flop RS at common entry of reset
74120 N
Double synchronization of impulses
74121 N
Monostable
74122 N
Monostable redéclenchable at entry reset
74123 N
Double monostable redéclenchable at entry reset
74125 N
4 doors YES at exits 3 states
74132 N
Quadruple Trigger de Schmitt NOT - AND at 2 entries
74141 AN
Decimal decoder BCD for tubes of posting
74142 N
Decimal scaler and ordering of NIXIE
74145 N
Decimal decoder BCD with open collector for 80 my and 30 V or 15 V
74148 N
8 To 3 Line Priority Encoder
74150 N
Selector of data 16 bits/multiplexer
74151 N
Selector of data 8 bits/multiplexer
74153 N
Double selector of data 4 bits/multiplexer
74154 N
Binary decoder 4 bits/demultiplexer
74155 N
Double binary decoder 2 bits/demultiplexer
74156 N
Double binary decoder 2 bits/demultiplexer
74157 N
Quadruple selector of information 2 bits/multiplexer
74160 N
Synchronous decimal scaler at entry of set and reset
74161 N
Synchronous decimal scaler at entry of set and reset
74162 N
Synchronous binary counter 4 bits at entry of set and reset
74163 N
Synchronous binary counter 4 bits at entry of set and reset
74164 N
Register with shift 8 bits at parallel port
74165 N
Register shift 8 bits at parallel entry
74166 N
Register with synchronous shift 8 bits at parallel entry
74167 N
Divider of frequencies, decimal
74170 N
Memory with 16 bits writing/reading with words to 4 bits
74174 N
Sixfold Flip-flop D at entry of reset
74175 N
Quadruple Flip-flop D synchronous
74180 N
Parity check 8 bits
74181 N
Arithmetic logical unit 4 bits
74184 N
Binary converter BCD 6 bits
74185 AN
Binary converter BCD 6 bits
74190 N
Reversible decimal scaler for synchronous counting chain
74191 N
Reversible binary counter for synchronous counting chain
74192 N
Meter decimal discounting machine with set and reset
74193 N
Binary meter discounting machine with set and reset
74194 N
Register with synchronous 4 bits right-hand side/left parallel shift
74195 N
Register with synchronous shift parallel 4 bits with entry JK
74196 N
Decimal scaler 50 MHz with entry of set and reset
74197 N
Binary counter 50 MHz with entry of set and reset
74198 N
Register with synchronous shift 8 bits at entry and port parallel
74199 N
Register with synchronous shift 8 bits parallel at entry JK
74LS241
Driver of bus not reverser
74LS242
Quad drunk transceiver inverting
74LS243
4 transcoders not reverser 3 states
81LS95
74795 : Octal Buffer with Three-State Outputs (74LS795 is equivalent to 81LS95)
81LS97
74797 : Octal Buffer with Three-State Outputs (74LS797 is equivalent to 81LS97)
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