Boards Cabinets Manuals/Flyers Cabinet Picture Archive Operator Trips UKVAC Meets Misc. Cabinets & Parts Boards My eBay Sales Components Misc. Repair Log Board Hacks Custom Chips 74 Series IC Info Atari ARII PSU Misc. Add To Favorites UKVAC Wiretap eBay UK - Arcade More Links....	74 Series IC Information Part No. Description Pins 00 Quad 2-input NAND gates 14 01 Quad 2-input open-collector NAND gates 14 02 Quad 2-input NOR gates 14 03 Quad 2-input open-collector NAND gates 14 04 Hex inverters 14 05 Hex open-collector inverters 14 06 Hex open-collector high-voltage inverters. Maximum output voltage is 30V 14 07 Hex open-collector high-voltage buffers. Maximum output voltage is 30V. 14 08 Quad 2-input AND gates 14 09 Quad 2-input open-collector AND gates 14 10 Triple 3-input NAND gates 14 11 Triple 3-input AND gates. 14 12 Triple 3-input open-collector NAND gates 14 13 Dual 4-input NAND gates with schmitt-trigger inputs. 14 14 Hex inverters with schmitt-trigger inputs. 14 15 Triple 3-input open-collector AND gates 14 16 Hex open-collector high-voltage inverters. Maximum output voltage is 15V 14 17 Hex open-collector high-voltage buffers. Maximum output voltage is 15V 14 18 Dual 4-input NAND gates with schmitt-trigger inputs 14 19 Hex inverters with schmitt-trigger line-receiver inputs 14 20 Dual 4-input NAND gates 14 21 Dual 4-input AND gates 14 22 Dual 4-input open-collector NAND gates 14 23 Dual 4-input Expandable NOR w/strobe 16 24 Quad 2-input NAND gates with schmitt-trigger line-receiver inputs 14 25 Dual 4-input NOR gates with enable input 14 26 Quad 2-input open-collector high-voltage NAND gates. Maximum output voltage is 15V 14 27 Triple 3-input NOR gates 14 28 Quad 2-input NOR gates with buffered outputs 14 29 14 30 8-input NAND gate 14 31 Hex delay elements 16 32 Quad 2-input OR gates 14 33 Quad 2-input open-collector NOR gates 14 34 Hex Buffer 14 35 Hex Buffer open-collector 14 36 ---- -- 37 Quad 2-input NAND gates with buffered output 14 38 Quad 2-input open-collector NAND gates with buffered output 14 39 Quad 2-input positive NAND buffers with open-collector outputs 14 40 Dual 4-input NAND gates with buffered output 14 41 ---- -- 42 1-of-10 inverting decoder/demultiplexer 16 43 4-line to 10-line decoders (excess 3 to decimal) 16 44 4-line to 10-line decoders (3-gray to decimal) 16 45 BCD to decimal decoder/driver 16 46 Open-collector BCD to 7-segment decoder/common-anode LED driver with ripple blank input and output. 16 47 Open-collector BCD to 7-segment decoder/common-anode LED driver with ripple blank input and output. 16 48 BCD to 7-segment decoders/drivers 16 49 BCD to 7-segment decoders/drivers (open-collector outputs) 14 50 Dual 2-wide 2-input AND-OR-INVERT gates (one gate expandable) 14 51 2-wide 2-input and 2-wide 3-input AND-NOR gates 14 52 Expandable 4-wide AND-OR gates 14 53 Expandable 4-wide AND-OR-INVERT gates 14 54 4-wide 2/3-input AND-NOR gate 14 55 2-wide 4-input AND-NOR gate 14 56 50-to-1 Frequency Divider 8 57 60-to-1 Frequency Divider 8 58 2-wide 2-input and 2-wide 3-input AND-OR gates 14 59 ---- -- 60 Dual 4-input expanders 14 61 Triple 3-input expanders 14 62 4-wide AND-OR expanders 14 63 Hex current-sensing interface gates 14 64 4-2-3-2 input AND-OR-INVERT gates 14 65 4-2-3-2 input AND-OR-INVERT gates 14 66 ---- -- 67 ---- -- 68 Dual 4-bit decade counter 16 69 Dual 4-bit binary counter 14 70 AND-Gated J-K positive edge triggered flip-flops 14 71 AND-OR-Gated J-K master-slave flip-flops with preset 14 72 J-K flip-flop with triple ANDed J an K inputs, set and reset 14 73 Dual positive-edge-triggered J-K flip-flop with reset 14 74 Dual D flip-flop with set and reset 14 75 Dual 2-bit transparent latches with complementary outputs 16 76 Dual J-K flip-flops with set and reset 16 77 4-bit bistable latches 14 78 Dual negative-edge-triggered J-K flip-flops with common clock, set and common reset 14 79 ---- -- 80 Gated full adders 14 81 16-bit Random-Access-Memories 14 82 2-bit binary full adder 14 83 4-bit binary full adder with fast carry 16 84 16-bit Random-Access-Memories 16 85 4-bit noninverting magnitude comparator with cascade inputs 16 86 Quad 2-input XOR gates 14 87 4-bit true/complement, zero/one elements 14 88 256-bit read-only-memories 16 89 64-bit read/write memories 16 90 4-bit asynchronous decade counter with /2 and /5 sections, set(9) and reset 14 91 8-bit serial-in serial-out shift register with two AND gated serial inputs and complementary outputs 14 92 4-bit asynchronous divide-by-twelve counter with /2 and /6 sections and reset 14 93 4-bit asynchronous binary counter with /2 and /8 sections and reset 14 94 4-bit shift registers 16 95 4-bit universal shift register with separate shift and parallel-load clocks 14 96 5-bit shift register with asynchronous reset and asynchronous preset inputs 16 97 6-bit synchronous binary rate multiplier 16 98 4-bit data selector/storage registers 16 99 4-bit bidirectional universal shift registers 16 100 8-bit bistable latches 24 101 AND-OR-Gated J-K negative edge triggered flip-flops with preset 14 102 AND-Gated J-K negative edge triggered flip-flops with preset and clear 14 103 Dual J-K negative edge triggered flip-flops with clear 14 104 ---- -- 105 ---- -- 106 Dual J-K negative edge triggered flip-flops with preset and clear 16 107 Dual J-K flip-flops with clear 14 108 Dual J-K negative edge triggered flip-flops with preset, common clear and common clock 14 109 Dual J-/K positive edge triggered flip-flops with preset and clear 14 110 AND-Gated J-K master-slave flip-flops with data lockout 14 111 Dual J-K master-slave flip-flops with data lockout 16 112 Dual J-K negative edge triggered flip-flops with preset and clear 16 113 Dual J-K negative edge triggered flip-flops with preset 14 114 Dual J-K negative edge triggered flip-flops with preset, common-clear and common-clock 14 115 ---- -- 116 Dual 4-bit latches 24 117 ---- -- 118 ---- -- 119 ---- -- 120 Dual pulse synchronizers/drivers 16 121 Monostable multivibrators 14 122 Retriggerable monostable multivibrators with clear 14 123 Dual retriggerable monostable multivibrators with positive and negative inputs and direct clear 16 124 Dual voltage-controlled oscillators with enable inputs 16 125 Quad bus buffer gates with three-state outputs 14 126 Quad bus buffer gates with three-state outputs 14 127 ---- -- 128 Line Drivers 14 129 ---- -- 130 ---- -- 131 3 to 8 line decoder/demultiplexer with address registers 16 132 Quad 2-Input positive NAND schmitt triggers 14 133 13-Input positive NAND 16 134 12-Input positive NAND gates with three-state outputs 16 135 Quad exclusive OR/NOR gates 16 136 Quad exclusive OR gates with open-collector outputs 14 137 3 to 8 line decoders/demultiplexers with address latches 16 138 3 to 8 line decoders/demultiplexers 16 139 Dual 2 to 4 line decoders/demultiplexers 16 140 Dual 4-input positive NAND 50-ohm line drivers 14 141 BCD to decimal decoder/driver 16 142 Counter/latch/decoder/driver 16 143 Counters/latchs/decoders/drivers 24 144 Counters/latchs/decoders/drivers 24 145 BCD to decimal decoders/drivers for lamps, relays, MOS 16 146 ---- -- 147 10-Line decimal to 4-line BCD priority encoders 16 148 8 to 3 line octal priority encoders 16 149 ---- -- 150 1 of 16 data selectors/multiplexers 24 151 1 of 8 data selectors/multiplexers 16 152 1 of 8 data selectors/multiplexers 14 153 Dual 4-line to 1-line data selectors/multiplexers 16 154 4-line to 16-line decoders/demultiplexers 24 155 Decoders/Demultiplexers 16 156 Decoders/Demultiplexers 16 157 Quad 2 to 1 line data selectors/multiplexers 16 158 Quad 2 to 1 line data selectors/multiplexers 16 159 4 to 16 line decoders/demultiplexers 24 160 Synchronous 4-bit counters (decade, direct clear) 16 161 Synchronous 4-bit counters (binary, direct clear) 16 162 Synchronous 4-bit counters (decade, synchronous clear) 16 163 Synchronous 4-bit counters (binary, synchronous clear) 16 164 8-Bit parallel out serial shift registers (synchronous clear) 14 165 8-Bit shift register (parallel load with complementary outputs) 16 166 8-Bit shift register (parallel/serial input, serial output) 16 167 Synchronous decade rate multipliers 16 168 4-Bit up/down synchronous counters (decade) 16 169 4-Bit up/down synchronous counters (binary) 16 170 4-by-4 register files 16 171 Quad d-type flip-flops with clear 16 172 16-Bit register files 24 173 4-Bit d-type registers (3-state outputs) 16 174 Hex d-type flip-flops (single-rail ouputs, common direct clear) 16 175 Quad d-type flip-flops (complementary outputs, common direct clear) 16 176 Presettable decade/biquinary counters 14 177 Presettable binary counters 14 178 4-Bit universal shift register 14 179 4-Bit universal shift registers 16 180 9-Bit odd/even parity generator/checker 14 181 Arithmetic logic units/function generators (16 arithmetic operations,16 logic functions) 24 182 Look-ahead carry generators 16 183 Dual carry-save full adders 14 184 Code converters (BCD to binary) 16 185 Code converters (Binary to BCD) 16 186 ---- -- 187 1024-bit read-only-memories (256 4-bit words, open-collector outputs) 16 188 256-bit programmable read-only-memories ?? 189 64-Bit ramdom-access-memories (16 4-bit words, 3 state outputs) 16 190 Synchronous up/down counters (BCD) 16 191 Synchronous up/down counters (Binary) 16 192 Synchronous up/down dual clock counters (BCD with clear) 16 193 Synchronous up/down dual clock counters (Binary with clear) 16 194 4-Bit bidirectional universal shift registers 16 195 4-Bit parallel-access shift registers 16 196 Presettable decade/biquinary counters/latches 14 197 Presettable binary counters/latches 14 198 8-bit bidirectional universal shift registers 24 199 8-bit bidirectional universal shift registers (J-/K serial inputs) 24 200 ---- -- 201 256-Bit random-access-memories (256 1-bit words, 3 state outputs) 16 202 ---- -- 203 ---- -- 204 ---- -- 205 ---- -- 206 ---- -- 207 ---- -- 208 ---- -- 209 ---- -- 210 ---- -- 211 ---- -- 212 ---- -- 213 ---- -- 214 ---- -- 215 ---- -- 216 ---- -- 217 256-Bit random-access-memories with three state outputs (64 x 4-bit words) 20 218 256-Bit random-access read/write memories with three state outputs (32 x 8-bit words) 20 219 64-Bit random-access-memories (16 x 4-bit words) 16 220 ---- -- 221 Dual monostable multivibrators 16 222 64-Bit FIFO memories 16 4-bit words (input-ready enable, output-ready enable, 3-state output) 20 223 ---- -- 224 64-Bit FIFO memories 16 4-bit words (3 state output) 16 225 80-Bit FIFO memories 16 5-bit words 20 226 4-Bit parallel latched bus transceivers (3 state outputs) 16 227 64-Bit FIFO memories 16 4-bit words (input-ready enable, output-ready enable, open-collector outputs) 20 228 64-Bit FIFO memories 16 4-bit words (open-collector outputs) 16 229 ---- -- 230 Octal buffers and line drivers (3 state output) 20 231 Octal buffers and line drivers (3 state output) 20 232 ---- -- 233 ---- -- 234 ---- -- 235 ---- -- 236 ---- -- 237 ---- -- 238 ---- -- 239 ---- -- 240 Octal buffers/Line drivers/Line receivers (inverted 3 state outputs) 20 241 Octal buffers/Line drivers/Line receivers (non-inverted 3 state outputs) 20 242 Quad bus tranceivers (inverted 3 state outputs) 14 243 Quad bus tranceivers (non-inverted 3 state outputs) 14 244 Octal buffers/Line drivers/Line receivers (non-inverted 3 state outputs) 20 245 Octal bus tranceivers (non-inverted 3 state outputs) 20 246 BCD to seven segment decoders/drivers with ripple blanking 16 247 BCD to seven segment decoders/drivers with ripple blanking 16 248 BCD to seven segment decoders/drivers (internal pull-up outputs) 16 249 BCD to seven segment decoders/drivers (open-collector outputs) 16 250 ---- -- 251 Data selectors/multiplexers (true and inverted 3 state outputs) 16 252 ---- -- 253 Dual data selectors/multiplexers (3 state outputs) 16 254 ---- -- 255 ---- -- 256 ---- -- 257 Quad data selectors/multiplexers (non-inverted 3 state outputs) 16 258 Quad data selectors/multiplexers (inverted 3 state outputs) 16 259 8-Bit addressable latches 16 260 Dual 5-input positive NOR gates 14 261 2-Bit by 4-bit parallel binary multipliers 16 262 ---- -- 263 ---- -- 264 ---- -- 265 Quad complementary output elements 16 266 Quad 2-input exclusive NOR gates with open-collector outputs 14 267 ---- -- 268 ---- -- 269 ---- -- 270 2048-Bit read-only-memories (open-collector outputs, 512 x 4-bit words) 16 271 2048-Bit read-only-memories (open-collector outputs, 256 x 8-bit words) 20 272 ---- -- 273 Octal d-type flip-flops (common clock, single rail outputs) 20 274 4-Bit by 4-bit binary multipliers 20 275 7-Bit slice wallace trees 16 276 Quad J-/K flip-flops (seperate clocks, edge-triggering, common direct clear and preset) 20 277 ---- -- 278 4-bit cascadable priority registers 14 279 Quad /S./R latches 16 280 9-Bit odd/even parity generators/checkers 14 281 4-Bit parallel binary accumulators 24 282 ---- -- 283 4-Bit binary full adders 16 284 4-Bit by 4-bit parallel binary multipliers used with '285 16 285 4-Bit by 4-bit parallel binary multipliers used with '284 16 286 ---- -- 287 ---- -- 288 ---- -- 289 64-Bit random-acces-memories (16 x 4-bit words, open collector outputs) 16 290 Decade counters (divide-by-two and divide-by-five) 14 291 ---- -- 292 Programmable frequency dividers/digital timers (digitally programmable from 2^2 to 2^31) 16 293 4-Bit binary counters (divide-by-two and divide-by-eight) 14 294 Programmable frequency dividers/digital timers (digitally programmable from 2^2 to 2^15) 16 295 4-Bit bidirectional universal shift registers 14 296 ---- -- 297 Digital phase-locked-loop filters (cascadable for higher-order loops) 16 298 Quad 2-input multiplexers with storage 16 299 8-Bit bidirectional universal shift/storage registers (3 state outputs) 20 300 ---- -- 301 256-Bit random-access-memories (256 1-bit words, open collector outputs) 16 302 ---- -- 303 ---- -- 304 ---- -- 305 ---- -- 306 ---- -- 307 ---- -- 308 ---- -- 309 ---- -- 310 ---- -- 311 ---- -- 312 ---- -- 313 ---- -- 314 ---- -- 315 ---- -- 316 ---- -- 317 256-Bit random-access-memories with open-collector outputs (64 x 4-bit words) 20 318 256-Bit random-access-memories with open-collector outputs (32 x 8-bit words) 20 319 64-Bit random-access-memories (16 x 4-bit words, open-collector outputs) 16 320 Crystal controlled oscillators 16 321 Crystal controlled oscillators (with F/2 and F/4 count-down outputs) 16 322 8-Bit shift registers with sign extend (3-state outputs, multiplexed I/O) 20 323 8-Bit bidirectional shift/storage registers (3 state outputs) 20 324 Voltage Controlled Oscillator 14 325 ---- -- 326 ---- -- 327 ---- -- 328 ---- -- 329 ---- -- 330 ---- -- 331 ---- -- 332 ---- -- 333 ---- -- 334 ---- -- 335 ---- -- 336 ---- -- 337 ---- -- 338 ---- -- 339 ---- -- 340 ---- -- 341 ---- -- 342 ---- -- 343 ---- -- 344 ---- -- 345 ---- -- 346 ---- -- 347 BCD to seven-segment decoders/drivers (open-collector outputs, low voltage version of 'LS47) 16 348 8-Line to 3-line priority encoders (3 state outputs) 16 349 ---- -- 350 ---- -- 351 Dual 8-line to 1-line data selectors/multiplexers (3 state outputs, four common data inputs) 20 352 Dual 4-line to 1-line data selectors/multiplexers (inverting version of 'LS153) 16 353 Dual 4-line to 1-line data selectors/multiplexers (3 state outputs,inverting version of 'LS253) 16 354 8-line to 1-line data selectors/multiplexers/transparent registers (3 state outputs) 20 355 8-Line to 1-line data selectors/multiplexers/transparent registers (open-collector outputs) 20 356 8-Line to 1-line data selectors/multiplexers/edge-triggered registers (3 state outputs) 20 357 8-Line to 1-line data selectors/multiplexers/edge-triggered registers (open-collector outputs) 20 358 ---- -- 359 ---- -- 360 ---- -- 361 ---- -- 362 ---- -- 363 ---- -- 364 ---- -- 365 Hex bus drivers (non-inverted 3-state outputs, gated enable inputs) 16 366 Hex bus drivers (inverted 3-state outputs, gated enable inputs) 16 367 Hex bus drivers (non-inverted 3-state outputs organised to facilitate handling of 4-bit data) 16 368 Hex bus drivers (inverted 3-state outputs organised to facilitate handling of 4-bit data) 16 369 ---- -- 370 2048-Bit read-only-memories (512 x 4-bit words, 3-state outputs) 16 371 2048-Bit read-only-memories (256 x 8-bit words, 3-state outputs) 20 372 ---- -- 373 Octal d-type latches (3-state outputs, common output control, common enable) 20 374 Octal d-type flip-flops (3-state outputs, common output control, common clock) 20 375 4-Bit bistable latches 16 376 Quad J-/K flip-flops (common clock, common clear) 16 377 Octal d-type flip-flops (single rail outputs, common enable, common clock) 20 378 Hex d-type flip-flops (single rail outputs, common enable, common clock) 16 379 Quad d-type flip-flops (single rail outputs, common enable, common clock) 16 380 ---- -- 381 Arithmetic logic units/function generators (8 binary functions, use 'S182 for look-ahead carry) 20 382 Arithmetic logic units/function generators (ripple carry and overflow outputs) 20 383 ---- -- 384 8-Bit by 1-bit two's-complement multipliers 16 385 Quad serial adders/subtractors 20 386 Quad 2-input exclusive-OR gates 14 387 ---- -- 388 ---- -- 389 ---- -- 390 Dual decade counters (bi-quinary or bcd sequences) 16 391 ---- -- 392 ---- -- 393 Dual 4-bit binary counters 14 394 ---- -- 395 4-Bit universal shift registers (3-state outputs) 16 396 Octal storage registers (parallel access) 16 397 ---- -- 398 Quad 2-input multiplexers with storage (double-rail outputs) 20 399 Quad 2-input multiplexers with storage 16 400 ---- -- 401 ---- -- 402 ---- -- 403 ---- -- 404 ---- -- 405 ---- -- 406 ---- -- 407 ---- -- 408 ---- -- 409 ---- -- 410 ---- -- 411 ---- -- 412 Multi-mode buffered 8-bit latches (3-state outputs, direct clear) 24 413 ---- -- 414 ---- -- 415 ---- -- 416 ---- -- 417 ---- -- 418 ---- -- 419 ---- -- 420 ---- -- 421 ---- -- 422 Re-triggerable monostable multivibrators (internal timing resistor) 14 423 Re-triggerable monostable multivibrators 16 424 ---- -- 425 Quad gates (3-state outputs, active-low enabling) 14 426 Quad gates (3-state outputs, active-high enabling) 14 427 ---- -- 428 System controller for 8080A 28 429 ---- -- 430 ---- -- 431 ---- -- 432 ---- -- 433 ---- -- 434 ---- -- 435 ---- -- 436 Line driver/memory driver circuits - MOS memory interface 16 437 Line driver/memory driver circuits - MOS memory interface 16 438 System controller for 8080A 28 439 ---- -- 440 Quad tridirectional bus transceivers (open-collector outputs, non-inverted logic) 20 441 Quad tridirectional bus transceivers (open-collector outputs, inverted logic) 20 442 Quad tridirectional bus transceivers (3-state outputs, non-inverted logic) 20 443 Quad tridirectional bus transceivers (3-state outputs, inverted logic) 20 444 Quad tridirectional bus transceivers (3-state outputs, inverted and non-inverted logic) 20 445 BCD-to-decimal decoders/drivers 16 446 Quad bus tranceivers with direction controls (3-state outputs) 16 447 BCD-to-seven-segment decoders/drivers (low-voltage version of 'LS247) 16 448 Quad tridirectional bus transceivers (open-collector outputs, inverted and non-inverted logic) 20 449 Quad bus tranceivers with direction controls (3-state outputs) 16 450 ---- -- 451 ---- -- 452 ---- -- 453 ---- -- 454 ---- -- 455 ---- -- 456 ---- -- 457 ---- -- 458 ---- -- 459 ---- -- 460 ---- -- 461 ---- -- 462 ---- -- 463 ---- -- 464 ---- -- 465 Octal buffers with 3-state outputs (true outputs) 20 466 Octal buffers with 3-state outputs (inverted outputs) 20 467 Octal buffers with 3-state outputs (true outputs) 20 468 Octal buffers with 3-state outputs (inverted outputs) 20 469 ---- -- 470 ---- -- 471 ---- -- 472 ---- -- 473 ---- -- 474 ---- -- 475 ---- -- 476 ---- -- 477 ---- -- 478 ---- -- 479 ---- -- 480 ---- -- 481 4-Bit slice cascadable processor elements 48 482 4-Bit slice cascadable control elements 20 483 ---- -- 484 BCD-to-binary code converter 20 485 Binary-to-BCD code converter 20 486 ---- -- 487 ---- -- 488 ---- -- 489 ---- -- 490 Dual decade counters 16 491 ---- -- 492 ---- -- 493 ---- -- 494 ---- -- 495 ---- -- 496 ---- -- 497 ---- -- 498 ---- -- 499 ---- -- 500 ---- -- 501 ---- -- 502 ---- -- 503 ---- -- 504 ---- -- 505 ---- -- 506 ---- -- 507 ---- -- 508 ---- -- 509 ---- -- 510 ---- -- 511 ---- -- 512 ---- -- 513 ---- -- 514 ---- -- 515 ---- -- 516 ---- -- 517 ---- -- 518 8-Bit magnitude comparator (input pull-up resistor, open-collector output) 20 519 8-Bit magnitude comparator (open-collector output) 20 520 8-Bit magnitude comparator (input pull-up resistor, inverted totem-pole output) 20 521 8-Bit magnitude comparator (inverted totem-pole output) 20 522 8-Bit magnitude comparator (input pull-up resistor, inverted open-collector output) 20 523 ---- -- 524 ---- -- 525 ---- -- 526 ---- -- 527 ---- -- 528 ---- -- 529 ---- -- 530 ---- -- 531 ---- -- 532 ---- -- 533 Octal d-type transparent latches (3-state buffer-type outputs) 20 534 Octal d-type edge-triggered flip-flops (3-state buffer-type outputs) 20 535 ---- -- 536 ---- -- 537 ---- -- 538 3 to 8 line decoders/demultiplexers (3-state outputs, output parity control) 20 539 2 to 4 line decoders/demultiplexers (3-state outputs, output parity control) 20 540 Octal buffers and line drivers (inverted data output) 20 541 Octal buffers and line drivers (tru data output) 20 542 ---- -- 543 ---- -- 544 ---- -- 545 ---- -- 546 ---- -- 547 ---- -- 548 ---- -- 549 ---- -- 550 ---- -- 551 ---- -- 552 ---- -- 553 ---- -- 554 ---- -- 555 ---- -- 556 ---- -- 557 ---- -- 558 ---- -- 559 ---- -- 560 Synchronous 4-bit counters (decade, sync and async clear) 20 561 Synchronous 4-bit counters (binary, sync and async clear) 20 562 ---- -- 563 Octal d-type transparent latches (inverted outputs) 20 564 Octal d-type edge-triggered flip-flops (inverted outputs) 20 565 ---- -- 566 ---- -- 567 ---- -- 568 Synchronous 4-bit up/down counters (decade, sync and async clear) 20 569 Synchronous 4-bit up/down counters (binary, sync and async clear) 20 570 ---- -- 571 ---- -- 572 ---- -- 573 Octal d-type transparent latches (functionally equivalent to 'LS373 & 'S373) 20 574 Octal d-type edge-triggered flip-flops (functionally equivalent to 'LS374 & 'S374) 20 575 Octal d-type edge-triggered flip-flops (non-inverted outputs) 24 576 Octal d-type edge-triggered flip-flops (inverted outputs) 20 577 Octal d-type edge-triggered flip-flops (inverted outputs, synchronous clear) 24 578 ---- -- 579 ---- -- 580 ---- -- 581 ---- -- 582 ---- -- 583 ---- -- 584 ---- -- 585 ---- -- 586 ---- -- 587 ---- -- 588 ---- -- 589 ---- -- 590 ---- -- 591 ---- -- 592 ---- -- 593 ---- -- 594 ---- -- 595 ---- -- 596 ---- -- 597 ---- -- 598 ---- -- 599 ---- --