| 144561 | 74LS241 | OCTAL BUFFERS AND LINE DRIVERS WITH 3-STATE OUTPUTS | Texas Instruments |
| 144562 | 74LS243 | Quadruple Bus Transceiver | Fairchild Semiconductor |
| 144563 | 74LS244 | Octal 3-STATE Buffer/Line Driver/Line Receiver | Fairchild Semiconductor |
| 144564 | 74LS244 | Octal Buffers/Line Drivers/Line Receivers(non inverted three-state outputs) | Hitachi Semiconductor |
| 144565 | 74LS244 | OCTAL BUFFER/LINE DRIVERS WITH 3-STATE OUTPUT(NONINVERTED) | Mitsubishi Electric Corporation |
| 144566 | 74LS244 | LOW POWER SCHOTTKY | ON Semiconductor |
| 144567 | 74LS244 | OCTAL BUFFERS AND LINE DRIVERS WITH 3-STATE OUTPUTS | Texas Instruments |
| 144568 | 74LS245 | 3-STATE Octal Bus Transceiver | Fairchild Semiconductor |
| 144569 | 74LS245 | TRI-STATE Octal Bus Transceiver | National Semiconductor |
| 144570 | 74LS245 | Octal Bus Transceivers | ON Semiconductor |
| 144571 | 74LS247 | 8CD-to-Seven-Segment Decoders/Drivers(with 15V outputs) | Hitachi Semiconductor |
| 144572 | 74LS247 | LOW POWER SCHOTTKY | ON Semiconductor |
| 144573 | 74LS247 | BCD-TO-SEVEN-SEGMENT DECODERS/DRIVERS | Texas Instruments |
| 144574 | 74LS251 | 3-STATE 1-of-8 Line Data Selector/Multiplexer | Fairchild Semiconductor |
| 144575 | 74LS251 | 1 of 8 Data Selectors/Multiplexers(with strobe and three-state outputs) | Hitachi Semiconductor |
| 144576 | 74LS251 | LOW POWER SCHOTTKY | ON Semiconductor |
| 144577 | 74LS251 | DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS | Texas Instruments |
| 144578 | 74LS253 | 3-STATE Data Selector/Multiplexer | Fairchild Semiconductor |
| 144579 | 74LS257 | 3-STATE Quad 2-Data Selectors/Multiplexers | Fairchild Semiconductor |
|
| 144580 | 74LS257 | Quadruple 2-line-to-1-line Data Selectors/Multiplexers(with non inverted 3-state outputs) | Hitachi Semiconductor |
| 144581 | 74LS257 | TRI-STATE Quad 2-Data Selectors/Multiplexers | National Semiconductor |
| 144582 | 74LS257 | LOW POWER SCHOTTKY | ON Semiconductor |
| 144583 | 74LS257 | QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS | Texas Instruments |
| 144584 | 74LS259 | 8-Bit Addressable Latches | Fairchild Semiconductor |
| 144585 | 74LS260 | DUAL 5-INPUT NOR GATE | Motorola |
| 144586 | 74LS266 | Quad 2-Input Exclusive-NOR Gate with Open-Collector Outputs | Fairchild Semiconductor |
| 144587 | 74LS266 | Quadruple 2-input Exclusive-NOR Gates(with open collector outputs) | Hitachi Semiconductor |
| 144588 | 74LS266 | QUADRUPLE 2-INPUT EXCLUSIVE-NOR GATES WITH OPEN-COLLECTOR OUTPUTS | Texas Instruments |
| 144589 | 74LS27 | Triple 3-input Positive NOR Gates | Hitachi Semiconductor |
| 144590 | 74LS273 | 8-Bit Register with Clear | Fairchild Semiconductor |
| 144591 | 74LS273 | Octal D-type Positive-edge-triggered Flip-Flops(with Clear) | Hitachi Semiconductor |
| 144592 | 74LS273 | OCTAL POSITIVE EDGE-TRIGGERED D-TYPE FLIP FLOP WITH RESET | Mitsubishi Electric Corporation |
| 144593 | 74LS273 | OCTAL D FLIP-FLOP WITH CLEAR | Motorola |
| 144594 | 74LS273 | 8-Bit Register with Clear | National Semiconductor |
| 144595 | 74LS273 | LOW POWER SCHOTTKY | ON Semiconductor |
| 144596 | 74LS273 | OCTAL D-TYPE FLIP-FLOP WITH CLEAR | Texas Instruments |
| 144597 | 74LS279 | Quad S-R Latch | Fairchild Semiconductor |
| 144598 | 74LS279 | Quadruple S-R Latches | Hitachi Semiconductor |
| 144599 | 74LS28 | QUAD 2-INPUT NOR BUFFER | Motorola |
| 144600 | 74LS280 | 9-bit Odd/Even Parity Generators/Checkers | Hitachi Semiconductor |
