74LS1000 74LS3000 74LS4000 74LS7000 74LS8000 series TTL IC's: 741000...74LS8003 7440103

LM / CD 741000 - 7440000 series TTL IC's: 74LS1000 up to 748003

These "LS" chips are basically low power drain CMOS versions of the TTL range.
Please note, we do not stock all the listed chips on this page, however we can
order these in, depending on availability, "lead" times. These useful 74LSxxx building
blocks of logic IC's function are on lower voltages, eg: typically from 4.5V ~ 5.6V D.C.

Email us :sales@unitechelectronics.com

The TTL building blocks 74LS1000, 74HCT1000 and the 7440000 series of TTL / LS / HCT logic IC's.


    741000
  Quad 2-input NAND gates with buffered output. 
  
      +---+--+---+             +---+---*---+           __
   1A |1  +--+ 14| VCC         | A | B |/Y |      /Y = AB
   1B |2       13| 4B          +===+===*===+
  /1Y |3  7410 12| 4A          | 0 | 0 | 1 |
   2A |4   00  11| /4Y         | 0 | 1 | 1 |
   2B |5       10| 3B          | 1 | 0 | 1 |
  /2Y |6        9| 3A          | 1 | 1 | 0 |
  GND |7        8| /3Y         +---+---*---+
      +----------+




    741004
  Hex inverters with buffered output. 
      +---+--+---+             +---*---+               _
   1A |1  +--+ 14| VCC         | A |/Y |          /Y = A
  /1Y |2       13| 6A          +===*===+
   2A |3  7410 12| /6Y         | 0 | Z |
  /2Y |4   04  11| 5A          | 1 | 0 |
   3A |5       10| /5Y         +---*---+
  /3Y |6        9| 4A
  GND |7        8| /4Y
      +----------+


    741005
  Hex open-collector inverters with buffered output. 
      +---+--+---+             +---*---+               _
   1A |1  +--+ 14| VCC         | A |/Y |          /Y = A
  /1Y |2       13| 6A          +===*===+
   2A |3  7410 12| /6Y         | 0 | Z |
  /2Y |4   05  11| 5A          | 1 | 0 |
   3A |5       10| /5Y         +---*---+
  /3Y |6        9| 4A
  GND |7        8| /4Y
      +----------+





    741032
  Quad 2-input OR gates with buffered output. 
      +---+--+---+             +---+---*---+
   1A |1  +--+ 14| VCC         | A | B | Y |       Y = A+B
   1B |2       13| 4B          +===+===*===+
   1Y |3  7410 12| 4A          | 0 | 0 | 0 |
   2A |4   32  11| 4Y          | 0 | 1 | 1 |
   2B |5       10| 3B          | 1 | 0 | 1 |
   2Y |6        9| 3A          | 1 | 1 | 1 |
  GND |7        8| 3Y          +---+---*---+
      +----------+


    741804
  Hex 2-input NAND gates/line drivers. 
      +---+--+---+             +---+---*---+           ___
   5B |1  +--+ 20| 5A          | A | B |/Y |      /Y = A+B
  /6Y |2       19| /5Y         +===+===*===+
   6A |3       18| 4B          | 0 | 0 | 1 |
   6B |4       17| 4A          | 0 | 1 | 1 |
  VCC |5  741  16| /4Y         | 1 | 0 | 1 |
   1A |6  804  15| GND         | 1 | 1 | 0 |
   1B |7       14| /3Y         +---+---*---+
  /1Y |8       13| 3B
   2A |9       12| 3A
   2B |10      11| /2Y
      +----------+





    741805
  Hex 2-input NOR gates/line drivers. 
      +---+--+---+             +---+---*---+           ___
   5B |1  +--+ 20| 5A          | A | B |/Y |      /Y = A+B
  /6Y |2       19| /5Y         +===+===*===+
   6A |3       18| 4B          | 0 | 0 | 1 |
   6B |4       17| 4A          | 0 | 1 | 0 |
  VCC |5  741  16| /4Y         | 1 | 0 | 0 |
   1A |6  805  15| GND         | 1 | 1 | 0 |
   1B |7       14| /3Y         +---+---*---+
  /1Y |8       13| 3B
   2A |9       12| 3A
   2B |10      11| /2Y
      +----------+


    741808
  Hex 2-input AND gates / line drivers. 
      +---+--+---+             +---+---*---+
   5B |1  +--+ 20| 5A          | A | B | Y |       Y = AB
   6Y |2       19| 5Y          +===+===*===+
   6A |3       18| 4B          | 0 | 0 | 0 |
   6B |4       17| 4A          | 0 | 1 | 0 |
  VCC |5  741  16| 4Y          | 1 | 0 | 0 |
   1A |6  808  15| GND         | 1 | 1 | 1 |
   1B |7       14| 3Y          +---+---*---+
   1Y |8       13| 3B
   2A |9       12| 3A
   2B |10      11| 2Y
      +----------+





    741821
  10-bit 3-state D flip-flop / bus driver. 
      +---+--+---+             +---+---+---*---+
   Q5 |1  +--+ 24| Q6          |/OE|CLK| D | Q |
   Q4 |2       23| Q7          +===+===+===*===+
   Q3 |3       22| Q8          | 1 | X | X | Z |
   Q2 |4       21| Q9          | 0 | / | 0 | 0 |
   Q1 |5       20| Q10         | 0 | / | 1 | 1 |
  VCC |6  741  19| CLK         | 0 |!/ | X | - |
  /OE |7  821  18| GND         +---+---+---*---+
   D1 |8       17| D10
   D2 |9       16| D9
   D3 |10      15| D8
   D4 |11      14| D7
   D5 |12      13| D6
      +----------+





    741832
  Hex 2-input OR gates / line drivers. 
      +---+--+---+             +---+---*---+
   5B |1  +--+ 20| 5A          | A | B | Y |       Y = A+B
   6Y |2       19| 5Y          +===+===*===+
   6A |3       18| 4B          | 0 | 0 | 0 |
   6B |4       17| 4A          | 0 | 1 | 1 |
  VCC |5  741  16| 4Y          | 1 | 0 | 1 |
   1A |6  832  15| GND         | 1 | 1 | 1 |
   1B |7       14| 3Y          +---+---*---+
   1Y |8       13| 3B
   2A |9       12| 3A
   2B |10      11| 2Y
      +----------+


    742240
  Dual 4-bit  3-state inverting buffer / MOS driver with 
  integrated 25 ohm series output resistors. 
       +---+--+---+
  /1OE |1  +--+ 20| VCC
   1A1 |2       19| /2OE
  /2Y4 |3       18| /1Y1
   1A2 |4       17| 2A4
  /2Y3 |5  742  16| /1Y2
   1A3 |6  240  15| 2A3
  /2Y2 |7       14| /1Y3
   1A4 |8       13| 2A2
  /2Y1 |9       12| /1Y4
   GND |10      11| 2A1
       +----------+





    742241
  Dual 4-bit 3-state non-inverting buffer / MOS driver with integrated 25 ohm

  series output resistors. One active low, one active high output enable. 
       +---+--+---+
  /1OE |1  +--+ 20| VCC
   1A4 |2       19| 2OE
   2Y1 |3       18| 1Y1
   1A3 |4       17| 2A4
   2Y2 |5  742  16| 1Y2
   1A2 |6  241  15| 2A3
   2Y3 |7       14| 1Y3
   1A1 |8       13| 2A2
   2Y4 |9       12| 1Y4
   GND |10      11| 2A1
       +----------+


    742244
  Dual 4-bit 3-state non-inverting buffer / MOS driver with
 
  integrated 25 ohm series output resistors. 
       +---+--+---+
  /1OE |1  +--+ 20| VCC
   1A1 |2       19| /2OE
   2Y4 |3       18| 1Y1
   1A2 |4       17| 2A4
   2Y3 |5  742  16| 1Y2
   1A3 |6  244  15| 2A3
   2Y2 |7       14| 1Y3
   1A4 |8       13| 2A2
   2Y1 |9       12| 1Y4
   GND |10      11| 2A1
       +----------+





    742245
  8-bit 3-state non-inverting bus transceiver with integrated 25 ohm series output resistors.
 
  Enable and direction pins control the output enables. 
      +---+--+---+             +---+---*---+---+
  DIR |1  +--+ 20| VCC         |/EN|DIR| A | B |
   A0 |2       19| /EN         +===+===*===+===+
   A1 |3       18| B0          | 1 | X | Z | Z |
   A2 |4       17| B1          | 0 | 0 | B | Z |
   A3 |5  742  16| B2          | 0 | 1 | Z | A |
   A4 |6  245  15| B3          +---+---*---+---+
   A5 |7       14| B4
   A6 |8       13| B5
   A7 |9       12| B6
  GND |10      11| B7
      +----------+


    742410
  11-bit  3-state noninverting buffer/MOS driver with
 
  integrated 25 ohm series output resistors. 
       +---+--+---+
    A1 |1  +--+ 28| A6
    A2 |2       27| A7
    A3 |3       26| A8
    A4 |4       25| A9
    A5 |5       24| A10
  /OE1 |6       23| A11
   VCC |7  742  22| GND
   GND |8  410  21| GND
  /OE2 |9       20| Y11
    Y5 |10      19| Y10
    Y4 |11      18| Y9
    Y3 |12      17| Y8
    Y2 |13      16| Y7
    Y1 |14      15| Y6
       +----------+





    742411
  11-bit  3-state inverting buffer / MOS driver with
 
  integrated 25 ohm series output resistors. 
       +---+--+---+
    A1 |1  +--+ 28| A6
    A2 |2       27| A7
    A3 |3       26| A8
    A4 |4       25| A9
    A5 |5       24| A10
  /OE1 |6       23| A11
   VCC |7  742  22| GND
   GND |8  411  21| GND
  /OE2 |9       20|/Y11
   /Y5 |10      19|/Y10
   /Y4 |11      18|/Y9
   /Y3 |12      17|/Y8
   /Y2 |13      16|/Y7
   /Y1 |14      15|/Y6
       +----------+


    742574
  8-bit  3-state D flip-flop with integrated 25 ohm series output resistors. 
        +---+--+---+             +---+---+---*---+
    /OE |1  +--+ 20| VCC         |/OE|CLK| D | Q |
     D1 |2       19| Q1          +===+===+===*===+
     D2 |3       18| Q2          | 1 | X | X | Z |
     D3 |4       17| Q3          | 0 | / | 0 | 0 |
     D4 |5  742  16| Q4          | 0 | / | 1 | 1 |
     D5 |6  574  15| Q5          | 0 |!/ | X | - |
     D6 |7       14| Q6          +---+---+---*---+
     D7 |8       13| Q7
     D8 |9       12| Q8
    GND |10      11| CLK
        +----------+





    742827
  10-bit 3-state non-inverting buffer / MOS driver with
 
  integrated 25 ohm series output resistors. 
       +---+--+---+
  /OE1 |1  +--+ 24| VCC
    A1 |2       23| Y1
    A2 |3       22| Y2
    A3 |4       21| Y3
    A4 |5       20| Y4
    A5 |6  742  19| Y5
    A6 |7  827  18| Y6
    A7 |8       17| Y7
    A8 |9       16| Y8
    A9 |10      15| Y9
   A10 |11      14| Y10
   GND |12      13| /OE2
       +----------+


    742828
  10-bit 3-state inverting buffer / MOS driver with

  integrated 25 ohm series output resistors. 
       +---+--+---+
  /OE1 |1  +--+ 24| VCC
    A1 |2       23| /Y1
    A2 |3       22| /Y2
    A3 |4       21| /Y3
    A4 |5       20| /Y4
    A5 |6  742  19| /Y5
    A6 |7  828  18| /Y6
    A7 |8       17| /Y7
    A8 |9       16| /Y8
    A9 |10      15| /Y9
   A10 |11      14| /Y10
   GND |12      13| /OE2
       +----------+





    742952
  8-bit 3-state noninverting latched transceiver. 
        +---+--+---+
     B8 |1  +--+ 24| VCC
     B7 |2       23| A8
     B6 |3       22| A7
     B5 |4       21| A6
     B4 |5       20| A5
     B3 |6  742  19| A4
     B2 |7  952  18| A3
     B1 |8       17| A2
  /OEAB |9       16| A1
  CLKAB |10      15| /OEBA
  /CEAB |11      14| CLKBA
    GND |12      13| /CEBA
        +----------+


    742953
  8-bit 3-state inverting latched transceiver. 
        +---+--+---+
     B8 |1  +--+ 24| VCC
     B7 |2       23| A8
     B6 |3       22| A7
     B5 |4       21| A6
     B4 |5       20| A5
     B3 |6  742  19| A4
     B2 |7  953  18| A3
     B1 |8       17| A2
  /OEAB |9       16| A1
  CLKAB |10      15| /OEBA
  /CEAB |11      14| CLKBA
    GND |12      13| /CEBA
        +----------+





    745400
  11-bit 3-state noninverting buffer / MOS driver with integrated 25R series output resistors. 
       +---+--+---+
    Y1 |1  +--+ 28| A1
    Y2 |2       27| A2
    Y3 |3       26| A3
    Y4 |4       25| A4
    Y5 |5       24| A5
    Y6 |6       23| A6
   GND |7   74  22| VCC
   GND |8  5400 21| VCC
    Y7 |9       20| A7
    Y8 |10      19| A8
    Y9 |11      18| A9
   Y10 |12      17| A10
   Y11 |13      16| A11
  /OE1 |14      15| /OE2
       +----------+


    745401
  11-bit 3-state inverting buffer / MOS driver with integrated 25R series output resistors. 
       +---+--+---+
   /Y1 |1  +--+ 28| A1
   /Y2 |2       27| A2
   /Y3 |3       26| A3
   /Y4 |4       25| A4
   /Y5 |5       24| A5
   /Y6 |6       23| A6
   GND |7   74  22| VCC
   GND |8  5401 21| VCC
   /Y7 |9       20| A7
   /Y8 |10      19| A8
   /Y9 |11      18| A9
  /Y10 |12      17| A10
  /Y11 |13      16| A11
  /OE1 |14      15| /OE2
       +----------+





    745402
  12-bit 3-state noninverting buffer/MOS driver with 

  integrated 25R series output resistors. 
       +---+--+---+
    Y1 |1  +--+ 28| A1
    Y2 |2       27| A2
    Y3 |3       26| A3
    Y4 |4       25| A4
    Y5 |5       24| A5
    Y6 |6       23| A6
   GND |7   74  22| A7
    Y7 |8  5402 21| VCC
    Y8 |9       20| A8
    Y9 |10      19| A9
   Y10 |11      18| A10
   Y11 |12      17| A11
   Y12 |13      16| A12
  /OE1 |14      15| /OE2
       +----------+


    745403
  12-bit 3-state inverting buffer/MOS driver with
 
  integrated 25R series output resistors. 
       +---+--+---+
   /Y1 |1  +--+ 28| A1
   /Y2 |2       27| A2
   /Y3 |3       26| A3
   /Y4 |4       25| A4
   /Y5 |5       24| A5
   /Y6 |6       23| A6
   GND |7   74  22| A7
   /Y7 |8  5402 21| VCC
   /Y8 |9       20| A8
   /Y9 |10      19| A9
  /Y10 |11      18| A10
  /Y11 |12      17| A11
  /Y12 |13      16| A12
  /OE1 |14      15| /OE2
       +----------+





    743351
  10-tap non-inverting delay lines (20nS, 50nS or 100nS total delay). 
      +---+--+---+
    A |1  +--+ 16| VCC
      |2       15|
      |3       14| Y1
   Y2 |4  743  13| Y3
   Y4 |5  351  12| Y5
   Y6 |6       11| Y7
   Y8 |7       10| Y9
  GND |8        9| Y10
      +----------+




    744002
  Dual 4-input NOR gates. 
      +---+--+---+             +---+---+---+---*---+       _________
  /1Y |1  +--+ 14| VCC         | A | B | C | D |/Y |  /Y = (A+B+C+D)
   1A |2       13| /2Y         +===+===+===+===*===+
   1B |3       12| 2D          | 0 | 0 | 0 | 0 | 1 |
   1C |4  4002 11| 2C          | 0 | 0 | 0 | 1 | 0 |
   1D |5       10| 2B          | 0 | 0 | 1 | X | 0 |
      |6        9| 2A          | 0 | 1 | X | X | 0 |
  GND |7        8|             | 1 | X | X | X | 0 |
      +----------+             +---+---+---+---*---+





    744015
  Dual 4-bit serial-in parallel-out shift register with asynchronous reset. 
       +---+--+---+
  2CLK |1  +--+ 16| VCC
   2Q3 |2       15| 2D
   1Q2 |3       14| 2RST
   1Q1 |4       13| 2Q0
   1Q0 |5  4015 12| 2Q1
  1RST |6       11| 2Q2
    1D |7       10| 1Q3
   GND |8        9| 1CLK
       +----------+


    744016
  Quad analog switches. 
       +---+--+---+
    1X |1  +--+ 14| VCC
    1Y |2       13| 1EN
    2Y |3       12| 4EN
    2X |4  4016 11| 4X
   2EN |5  4066 10| 4Y
   3EN |6        9| 3Y
   GND |7        8| 3X
       +----------+





    744017
  4-bit asynchronous decade counter with fully decoded outputs,
 
  reset and both active high and active low clocks. 
      +---+--+---+
   Q5 |1  +--+ 16| VCC
   Q1 |2       15| RST
   Q0 |3       14| CLK1
   Q2 |4       13| /CLK2
   Q6 |5  4017 12| RCO
   Q7 |6       11| Q9
   Q3 |7       10| Q4
  GND |8        9| Q8
      +----------+


    744020
  14-bit asynchronous binary counter with Reset.

  Q1 and Q2 outputs are missing. 
      +---+--+---+
  Q11 |1  +--+ 16| VCC
  Q12 |2       15| Q10
  Q13 |3       14| Q9
   Q5 |4       13| Q7
   Q4 |5  4020 12| Q8
   Q6 |6       11| RST
   Q3 |7       10| /CLK
  GND |8        9| Q0
      +----------+





    744024
  7-bit asynchronous binary counter with Reset. 
       +---+--+---+
  /CLK |1  +--+ 14| VCC
   RST |2       13|
    Q6 |3       12| Q0
    Q5 |4  4024 11| Q1
    Q4 |5       10|
    Q3 |6        9| Q2
   GND |7        8|
       +----------+


    744040
   12-bit asynchronous binary counter with Reset. 
      +---+--+---+
  Q11 |1  +--+ 16| VCC
   Q5 |2       15| Q10
   Q4 |3       14| Q9
   Q6 |4       13| Q7
   Q3 |5  4040 12| Q8
   Q2 |6       11| RST
   Q1 |7       10| /CLK
  GND |8        9| Q0
      +----------+





    744046
  Phase Locked Loop. 
        +---+--+---+
   PCPou|1  +--+ 16| VCC
  PC1out|2       15| Zener
   PCinB|3       14| PCinA
  VCOout|4       13| PC2out
    /EN |5  4046 12| R2
    C1A |6       11| R1
    C1B |7       10| SFout
    GND |8        9| VCOin
        +----------+


    744049
   Hex inverters with high-to-low level shifter inputs. 
    +---+--+---+             +---*---+               _
VCC |1  +--+ 16|             | A |/Y |          /Y = A
/Y1 |2       15| /Y6         +===*===+
 A1 |3       14| A6          | 0 | 1 |
/Y2 |4       13|             | 1 | 0 |
 A2 |5  4049 12| /Y5         +---*---+
/Y3 |6       11| A5
 A3 |7       10| /Y4
GND |8        9| A4
    +----------+





    744050
  Hex buffers with high-to-low level shifter inputs. 
      +---+--+---+             +---*---+
  VCC |1  +--+ 16|             | A | Y |           Y = A
   Y1 |2       15| Y6          +===*===+
   A1 |3       14| A6          | 0 | 0 |
   Y2 |4       13|             | 1 | 1 |
   A2 |5  4050 12| Y5          +---*---+
   Y3 |6       11| A5
   A3 |7       10| Y4
  GND |8        9| A4
      +----------+


    744051
  8-to-1 line analog multiplexer/demultiplexer with dual power supply.

  VEE supply may not be more positive than GND. 
     +---+--+---+
   X4 |1  +--+ 16| VCC
   X6 |2       15| X2
    Y |3       14| X1
   X7 |4    74 13| X0
   X5 |5  4051 12| X3
  /EN |6       11| S0
  VEE |7       10| S1
  GND |8        9| S2
      +----------+





    744052
  8-to-2 line analog multiplexer / demultiplexer with dual power supply.
 
  VEE supply may not be more positive than GND. 
      +---+--+---+
  1X0 |1  +--+ 16| VCC
  1X2 |2       15| 2X2
   1Y |3       14| 2X1
  1X3 |4   74  13| 2Y
  1X1 |5  4052 12| 2X0
  /EN |6       11| 2X3
  VEE |7       10| S0
  GND |8        9| S1
      +----------+


    744053
  Triple 2-to-1 line analog multiplexer / demultiplexer with dual power supply.

  VEE supply may not be more positive than GND. 
      +---+--+---+
  1X0 |1  +--+ 16| VCC
  1X1 |2       15| 1Y
  2X1 |3       14| 3Y
   2Y |4   74  13| 3X1
  2X0 |5  4053 12| 3X0
  /EN |6       11| 3S
  VEE |7       10| 1S
  GND |8        9| 2S
      +----------+





    744060
  14-bit asynchronous binary counter with oscillator and reset input.
 
  Q0, Q1, Q2  and  Q10 outputs are indeed missing. 
      +---+--+---+
  Q11 |1  +--+ 16| VCC
  Q12 |2       15| Q9
  Q13 |3       14| Q7
   Q5 |4    74 13| Q8
   Q4 |5  4060 12| RST
   Q6 |6       11| X1
   Q3 |7       10| X0
  GND |8        9| X2
      +----------+


    744066
  Quad analog switches. 
       +---+--+---+
    1X |1  +--+ 14| VCC
    1Y |2       13| 1EN
    2Y |3   74  12| 4EN
    2X |4  4016 11| 4X
   2EN |5  4066 10| 4Y
   3EN |6        9| 3Y
   GND |7        8| 3X
       +----------+





    744067
  16-to-1 line analog multiplexer / demultiplexer. 
      +-----+--+-----+
    Y |1    +--+   24| VCC
   X7 |2           23| X8
   X6 |3           22| X9
   X5 |4           21| X10
   X4 |5           20| X11
   X3 |6      74   19| X12
   X2 |7    4067   18| X13
   X1 |8           17| X14
   X0 |9           16| X15
   S0 |10          15| /EN
   S1 |11          14| S2
  GND |12          13| S3
      +--------------+


    744075
  Triple 3-input OR gates. 
      +---+--+---+             +---+---+---*---+
   1A |1  +--+ 14| VCC         | A | B | C | Y |   Y = A+B+C
   1B |2       13| 3A          +===+===+===*===+
   2A |3    74 12| 3B          | 0 | 0 | 0 | 0 |
   2B |4  4075 11| 3C          | 0 | 0 | 1 | 1 |
   2C |5       10| 3Y          | 0 | 1 | X | 1 |
   2Y |6        9| 1Y          | 1 | X | X | 1 |
  GND |7        8| 1C          +---+---+---*---+
      +----------+





    744078
  8-input OR/NOR gate with complementary outputs. 
      +---+--+---+
    Y |1  +--+ 14| VCC         Y=A+B+C+D+E+F+G+H
    A |2       13| /Y
    B |3    74 12| H
    C |4  4078 11| G 
    D |5       10| F
      |6        9| E
  GND |7        8|
      +----------+


    744316
  Quad analog switches with enable input and dual power supply.

  VEE supply may not be more positive than GND. 
      +---+--+---+
   1X |1  +--+ 16| VCC
   1Y |2       15| 1EN
   2Y |3       14| 4EN
   2X |4   74  13| 4X
  2EN |5  4316 12| 4Y
  3EN |6       11| 3Y
   EN |7       10| 3X
  GND |8        9| VEE
      +----------+





    744351
  8-to-1 line analog multiplexer/demultiplexer with address latch and dual power supply.

  VEE supply may not be more positive than GND. 
      +---+--+---+
  1X0 |1  +--+ 18| VCC
  1X1 |2       17| X2
  2X1 |3       16| X1
   2Y |4   74  15| X0
  2X0 |5  4351 14| X3
  /EN |6       13| S0
   EN |7       12| S1
  VEE |8       11| S2
  GND |9       10| LE
      +----------+


    744352
  8-to-2 line analog multiplexer/demultiplexer with address latch and dual power supply.
 
  VEE supply may not be more positive than GND. 
      +---+--+---+
  1X0 |1  +--+ 18| VCC
  1X2 |2       17| 2X2
   1Y |3       16| 2X1
  1X3 |4   74  15| 2Y
  1X1 |5  4352 14| 2X0
  /EN |6       13| 2X3
   EN |7       12| S0
  VEE |8       11| S1
  GND |9       10| LE
      +----------+





    744353
  Triple 2-to-1 line analog multiplexer / demultiplexer with address latch

  and dual power supply. VEE supply may not be more positive than GND. 
      +---+--+---+
  1X0 |1  +--+ 18| VCC
  1X1 |2       17| 1Y
  2X1 |3       16| 3Y
   2Y |4   74  15| 3X1
  2X0 |5  4353 14| 3X0
  /EN |6       13| 3S
   EN |7       12| 1S
  VEE |8       11| 2S
  GND |9       10| LE
      +----------+


    744511
  BCD to 7-segment decoder / common-cathode LED driver. 
      +---+--+---+
   A1 |1  +--+ 16| VCC
   A2 |2       15| YF
  /LT |3       14| YG
  /BI |4   74  13| YA
  /LE |5  4511 12| YB
   A3 |6       11| YC
   A0 |7       10| YD
  GND |8        9| YE
      +----------+





    744514
  1-of-16 noninverting decoder / demultiplexer with address latches. 
      +---+--+---+
   LE |1  +--+ 24| VCC
   S0 |2       23| /EN
   S1 |3       22| S3
   Y7 |4       21| S2
   Y6 |5       20| Y10
   Y5 |6   74  19| Y11
   Y4 |7  4514 18| Y8
   Y3 |8       17| Y9
   Y2 |9       16| Y15
   Y1 |10      15| Y14
   Y0 |11      14| Y13
  GND |12      13| Y12
      +----------+


    744515
  1-of-16 inverting decoder / demultiplexer with address latches. 
      +---+--+---+
   LE |1  +--+ 24| VCC
   S0 |2       23| /EN
   S1 |3       22| S3
  /Y7 |4       21| S2
  /Y6 |5       20| /Y10
  /Y5 |6   74  19| /Y11
  /Y4 |7  4515 18| /Y8
  /Y3 |8       17| /Y9
  /Y2 |9       16| /Y15
  /Y1 |10      15| /Y14
  /Y0 |11      14| /Y13
  GND |12      13| /Y12
      +----------+





    744518
  Dual 4-bit asynchronous decade counters with reset
 
  and both active high clocks and active low clocks. 
        +---+--+---+
   1CLK |1  +--+ 16| VCC
  /1CLK |2       15| 2RST
    1Q0 |3       14| 2Q3
    1Q1 |4   74  13| 2Q2
    1Q2 |5  4518 12| 2Q1
    1Q3 |6       11| 2Q0
   1RST |7       10| /2CLK
    GND |8        9| 2CLK
        +----------+


    744520
  Dual 4-bit asynchronous binary counters with reset and

  both active high and active low clocks. 
        +---+--+---+
   1CLK |1  +--+ 16| VCC
  /1CLK |2       15| 2RST
    1Q0 |3       14| 2Q3
    1Q1 |4   74  13| 2Q2
    1Q2 |5  4520 12| 2Q1
    1Q3 |6       11| 2Q0
   1RST |7       10| /2CLK
    GND |8        9| 2CLK
        +----------+





    744538
  Dual precision monostable multivibrator with Schmitt-trigger inputs.

  Retriggerable, resettable. For 74HC4538 the "Cext" pins may be grounded. 
         +---+--+---+
   1Cext |1  +--+ 16| VCC
  1RCext |2       15| 2Cext
    1RST |3       14| 2RCext
     1TR |4   74  13| 2RST
    /1TR |5  4538 12| 2TR
      1Q |6       11| /2TR
     /1Q |7       10| 2Q
     GND |8        9| /2Q
         +----------+


    744543
  BCD to 7-segment decoder/LCD driver with input latch. The P (Phase)

  input should be connected to the backplane of the LCD. 
      +---+--+---+
   LE |1  +--+ 16| VCC
   A2 |2       15| YF
   A1 |3       14| YG
   A3 |4   74  13| YE
   A0 |5  4543 12| YD
    P |6       11| YC
   BI |7       10| YB
  GND |8        9| YA
      +----------+





    7440102
  8-bit (2-digit) synchronous decade down counter with synchronous
 
  and asynchronous load and reset. Counter outputs only internally

  connected but ripple carry and zero detect outputs available. 
         +---+--+---+
     CLK |1  +--+ 16| VCC
    /RST |2       15| /SLD
  /CLKEN |3       14| /RCO
      P0 |4   74  13| P7
      P1 |5 40102 12| P6
      P2 |6       11| P5
      P3 |7       10| P4
     GND |8        9| /ALD
         +----------+





    7440103
  8-bit synchronous binary down counter with synchronous and

  asynchronous load and reset. Counter outputs only internally

  connected but ripple carry and zero detect outputs available. 
         +---+--+---+
     CLK |1  +--+ 16| VCC
    /RST |2       15| /SLD
  /CLKEN |3       14| /RCO
      P0 |4   74  13| P7
      P1 |5 40103 12| P6
      P2 |6       11| P5
      P3 |7       10| P4
     GND |8        9| /ALD
         +----------+



    744374
  8-bit 3-state dual-ranking D flip flop. Designed to prevent "meta-stable"
 
  conditions in data synchronization applications in which setup and hold

  times may be violated. 
      +---+--+---+
   Q1 |1  +--+ 20| D1
   Q2 |2       19| D2
   Q3 |3       18| D3
   Q4 |4       17| D4
  GND |5  744  16| VCC
   Q5 |6  374  15| D5
   Q6 |7       14| D6
   Q7 |8       13| D7
   Q8 |9       12| D8
  /OE |10      11| CLK
      +----------+





    747001
  Quad 2-input AND gates with schmitt-trigger inputs.

  0.8V typical input hysteresis at VCC = +5 Volts. 
      +---+--+---+             +---+---*---+
   1A |1  +--+ 14| VCC         | A | B | Y |       Y = AB
   1B |2       13| 4B          +===+===*===+
   1Y |3  747  12| 4A          | 0 | 0 | 0 |
   2A |4  001  11| 4Y          | 0 | 1 | 0 |
   2B |5       10| 3B          | 1 | 0 | 0 |
   2Y |6        9| 3A          | 1 | 1 | 1 |
  GND |7        8| 3Y          +---+---*---+
      +----------+


    747266
  Quad 2-input XNOR gates. 
      +---+--+---+             +---+---*---+          _     _ _
   1A |1  +--+ 14| VCC         | A | B |/Y |     Y = A+B = (A.B)+(A.B)
   1B |2       13| 4B          +===+===*===+
  /1Y |3  747  12| 4A          | 0 | 0 | 1 |
   2A |4  266  11| /4Y         | 0 | 1 | 0 |
   2B |5       10| 3B          | 1 | 0 | 0 |
  /2Y |6        9| 3A          | 1 | 1 | 1 |
  GND |7        8| /3Y         +---+---*---+
      +----------+





    748003
  Dual 2-input NAND gates. 
      +---+--+---+                 __
   1A |1  +--+  8| VCC        /Y = AB
   1B |2  748   7| 2B
  /1Y |3  003   6| 2A
  GND |4        5| /2Y
      +----------+





" DISCLAIMER "


We believe the above information to be correct, however,  typographical errors 
can occur and it is for this very reason, we provide the above information "as is" 
with "no Warranty" as to "correctness" nor to its "accuracy". Please, always 
check  with your " own data books "  or via a "Google" search on the net.
Please notify us if you have discovered a typographical error and we will fix it.
 E. &. O. E.
 This page was upgraded January 31st 2013