型號 廠商 描述
74ls195
2 3 4 5 6 7
ON SEMICONDUCTOR LOW POWER SCHOTTKY
74ls195
2 3 4 5 6 7
Motorola, Inc. UNIVERSAL 4-BIT SHIFT REGISTER
74ls196
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
Texas Instruments, Inc. 50/30/100-MHz [RESETTABLE DECADE OR BINARY COUNTERS/LATCHES
74ls196
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
Motorola, Inc. 4-STAGE PRESETTABLE RIPPLE COUNTERS
74ls20
2 3 4 5
Hitachi,Ltd. Dual 4-input Positive NAND Gates
74ls20
2 3 4 5
Texas Instruments, Inc. DUAL 4-INPUT POSITIVE-NAND GATES
74ls20
2 3 4 5
National Semiconductor Corporation Dual 4-Input NAND Gates
74ls20
2 3 4 5
Motorola, Inc. DUAL 4-INPUT NAND GATE
74ls20
2 3 4 5
Fairchild Semiconductor Corporation Dual 4-Input NAND Gate
74ls21
2 3 4 5
Hitachi,Ltd. Dual 4-input Positive AND Gates
74ls21
2 3 4 5
Texas Instruments, Inc. DUAL 4-INPUT POSITIVE-AND GATES
74ls21
2 3 4 5
Electronic Theatre Controls, Inc. DUAL 4-INPUT POSITIVE AND GATE
74ls21dc
2 3 4 5
Electronic Theatre Controls, Inc. DUAL 4-INPUT POSITIVE AND GATE
74ls21fc
2 3 4 5
Electronic Theatre Controls, Inc. DUAL 4-INPUT POSITIVE AND GATE
74ls21pc
2 3 4 5
Electronic Theatre Controls, Inc. DUAL 4-INPUT POSITIVE AND GATE
74ls22
2 3 4 5 6 7
Texas Instruments, Inc. DUAL 4 INPUT POSITIVE NAND GATES WITH OPEN COLLECTOR OUTPUTS
74ls240
2 3 4 5
Hitachi,Ltd. Octal Buffers/Line Drivers/Line Receivers(inverted three-state outputs)
74ls240
2 3 4 5
Texas Instruments, Inc. OCTAL BUFFERS AND LINE DRIVERS WITH 3-STATE OUTPUTS
74ls240
2 3 4 5
ON SEMICONDUCTOR LOW POWER SCHOTTKY
74ls240
2 3 4 5
National Semiconductor Corporation Octal TRI-STATE Buffers/Line Drivers/Line Receivers
74ls240
2 3 4 5
Fairchild Semiconductor Corporation Octal 3-STATE Buffer/Line Driver/Line Receiver
74ls241
2 3 4 5
Hitachi,Ltd. Octal Buffers/Line Drivers/Line Receivers
74ls241
2 3 4 5
Texas Instruments, Inc. OCTAL BUFFERS AND LINE DRIVERS WITH 3-STATE OUTPUTS
74ls241
2 3 4 5
National Semiconductor Corporation Octal TRI-STATE Buffers/Line Drivers/Line Receivers
74ls241
2 3 4 5
Motorola, Inc. OCTAL BUFFER/LINE DRIVER WITH 3-STATE OUTPUTS
74ls241
2 3 4 5
Fairchild Semiconductor Corporation Octal 3-STATE Buffer/Line Driver/Line Receiver
74ls244
2 3 4 5
Hitachi,Ltd. Octal Buffers/Line Drivers/Line Receivers(non inverted three-state outputs)
74ls244
2 3 4 5
Texas Instruments, Inc. OCTAL BUFFERS AND LINE DRIVERS WITH 3-STATE OUTPUTS
74ls244
2 3 4 5
ON SEMICONDUCTOR LOW POWER SCHOTTKY
74ls244
2 3 4 5
Mitsubishi Electric Corporation OCTAL BUFFER/LINE DRIVERS WITH 3-STATE OUTPUT(NONINVERTED)
74ls244
2 3 4 5
Fairchild Semiconductor Corporation Octal 3-STATE Buffer/Line Driver/Line Receiver
74ls245b1
2 3 4 5 6 7 8
Electronic Theatre Controls, Inc. Octal bus transceiver
74ls245
2 3 4
ON SEMICONDUCTOR Octal Bus Transceivers
74ls245
2 3 4
National Semiconductor Corporation TRI-STATE Octal Bus Transceiver
74ls245
2 3 4
Fairchild Semiconductor Corporation 3-STATE Octal Bus Transceiver
74ls247
2 3 4 5 6 7
Hitachi,Ltd. 8CD-to-Seven-Segment Decoders/Drivers(with 15V outputs)
74ls247
2 3 4 5 6 7
Texas Instruments, Inc. BCD-TO-SEVEN-SEGMENT DECODERS/DRIVERS
74ls247
2 3 4 5 6 7
ON SEMICONDUCTOR LOW POWER SCHOTTKY
74ls251
2 3 4 5 6
Hitachi,Ltd. 1 of 8 Data Selectors/Multiplexers(with strobe and three-state outputs)
74ls251
2 3 4 5 6
Texas Instruments, Inc. DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS
74ls251
2 3 4 5 6
ON SEMICONDUCTOR LOW POWER SCHOTTKY
74ls251
2 3 4 5 6
Fairchild Semiconductor Corporation 3-STATE 1-of-8 Line Data Selector/Multiplexer
74ls257
2 3 4 5 6
Hitachi,Ltd. Quadruple 2-line-to-1-line Data Selectors/Multiplexers(with non inverted 3-state outputs)
74ls257
2 3 4 5 6
Texas Instruments, Inc. QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS
74ls257
2 3 4 5 6
ON SEMICONDUCTOR LOW POWER SCHOTTKY
74ls257
2 3 4 5 6
National Semiconductor Corporation TRI-STATE Quad 2-Data Selectors/Multiplexers
74ls257
2 3 4 5 6
Fairchild Semiconductor Corporation 3-STATE Quad 2-Data Selectors/Multiplexers
74ls273
2 3 4 5 6
Hitachi,Ltd. Octal D-type Positive-edge-triggered Flip-Flops(with Clear)
74ls273
2 3 4 5 6
Texas Instruments, Inc. OCTAL D-TYPE FLIP-FLOP WITH CLEAR
74ls273
2 3 4 5 6
ON SEMICONDUCTOR LOW POWER SCHOTTKY