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CopyrightHEF-4000 - HEF-4099 DATAcopyright

    HEF4000 series LOCMOS IC's: HEF4580 to HEF40257

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    The very useful building blocks HEF / CD 4000 series of LOCMOS logic IC's.
    Please note, we currently stock some of the listed chips on this page, however
other HEF 4000 or CD series we can order these in depending on "lead" times.

Email us :sales@unitechelectronics.com



    HEF-4580
   4 x 4-bit  3-state synchronous triple-port register file. 
        +-----+--+-----+
    1Q3 |1    +--+   24| VCC
    1Q2 |2           23| 1Q1
    1RD |3           22| 1Q0
    2Q0 |4           21| 2RD
    2Q1 |5           20| D0
    2Q2 |6           19| D1
    2Q3 |7   40108   18| D2
    WA0 |8           17| D3
    WA1 |9           16| WCLK
   2RA1 |10          15| WR
   2RA0 |11          14| 1RA1
    GND |12          13| 1RA0
        +--------------+


    HEF-40100
  32-bit bidirectional serial-in serial-out shift register with 
  two "AND" gated clocks. With /LOOP input low, data is rotated
  and serial data input ignored. 
+---+--+---+ |1 +--+ 16| VCC /CLK2 |2 15| CLK1 |3 14| Q0 |4 13| L//R |5 40100 12| Q31 L |6 11| D |7 10| GND |8 9| /LOOP +----------+

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    HEF-40101
  9-bit odd / even parity generator / checker. 
      +---+--+---+
   A0 |1  +--+ 14| VCC
   A1 |2       13| A8
   A2 |3       12| A7
   A3 |4 40101 11| A6
   A4 |5       10| A5
  ODD |6        9| EVEN
  GND |7        8| /EN
      +----------+


    HEF-40102
  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       13| P7
      P1 |5 40102 12| P6
      P2 |6       11| P5
      P3 |7       10| P4
     GND |8        9| /ALD
         +----------+

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    HEF-40103
  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       13| P7
      P1 |5 40103 12| P6
      P2 |6       11| P5
      P3 |7       10| P4
     GND |8        9| /ALD
         +----------+


    HEF-40104
  4-bit 3-state bidirectional universal shift register. 
      +---+--+---+             +---+---*---------------+
   OE |1  +--+ 16| VCC         | S1| S0| Function      |
    D |2       15| Y0          +===+===*===============+
   P0 |3       14| Y1          | 0 | 0 | Reset         |
   P1 |4       13| Y2          | 0 | 1 | Shift right   |
   P2 |5 40104 12| Y3          | 1 | 0 | Shift left    |
   P3 |6       11| CLK         | 1 | 1 | Parallel load |
    L |7       10| S1          +---+---*---------------+
  GND |8        9| S0
      +----------+

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    HEF-40105
  16 x 4  3-state asynchronous FIFO with reset. 
        +---+--+---+
     OE |1  +--+ 16| VCC
  /FULL |2       15| RD
     WR |3       14| /EMPTY
     D0 |4       13| Q0
     D1 |5 40105 12| Q1
     D2 |6       11| Q2
     D3 |7       10| Q3
    GND |8        9| RST
        +----------+


    HEF-40106
  Hex inverters with schmitt-trigger inputs. 0.9V typical 
  input hysteresis at VCC=+5V and 2.3V at VCC=+10V. 
      +---+--+---+             +---*---+               _
   1A |1  +--+ 14| VCC         | A |/Y |          /Y = A
  /1Y |2       13| 6A          +===*===+
   2A |3       12| /6Y         | 0 | 1 |
  /2Y |4 40106 11| 5A          | 1 | 0 |
   3A |5       10| /5Y         +---*---+
  /3Y |6        9| 4A
  GND |7        8| /4Y
      +----------+

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    HEF-40107
  Dual 2-input open-collector NAND gates with buffered output. 
      +---+--+---+             +---+---*---+           __
   1A |1  +--+  8| VCC         | A | B |/Y |      /Y = AB
   1B |2        7| 2B          +===+===*===+
  /1Y |3 40107  6| 2A          | 0 | 0 | Z |
  GND |4        5| /2Y         | 0 | 1 | Z |
      +----------+             | 1 | 0 | Z |
                               | 1 | 1 | 0 |
                               +---+---*---+


    HEF-40108
  4 x 4-bit 3-state synchronous triple-port register file. 
        +-----+--+-----+
    1Q3 |1    +--+   24| VCC
    1Q2 |2           23| 1Q1
    1RD |3           22| 1Q0
    2Q0 |4           21| 2RD
    2Q1 |5           20| D0
    2Q2 |6           19| D1
    2Q3 |7   40108   18| D2
    WA0 |8           17| D3
    WA1 |9           16| WCLK
   2RA1 |10          15| WR
   2RA0 |11          14| 1RA1
    GND |12          13| 1RA0
        +--------------+

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    HEF-40109
  Quad 3-state noninverting buffer/level shifter. 
  VDD supplies the output stage, VCC the input stage. 
      +---+--+---+             +---+---*-----+
  VCC |1  +--+ 16| VDD         | A | OE|  Y  |
  1OE |2       15| 4OE         +===+===*=====+
   1A |3       14| 4A          | X | 0 |  Z  |
   1Y |4       13| 4Y          | 0 | 1 | GND |
   2Y |5 40109 12|             | 1 | 1 | VDD |
   2A |6       11| 3Y          +---+---*-----+
  2OE |7       10| 3A
  GND |8        9| 3OE
      +----------+

    HEF-40110
  4-bit asynchronous decade up/down counter with 7-segment 
  decoder / common - cathode LED driver, ripple carry and borrow, 
  separate up and down clocks, clock enable and output latch. 
         +---+--+---+
      YA |1  +--+ 16| VCC
      YG |2       15| YB
      YF |3       14| YC
  /CLKEN |4       13| YD
     RST |5 40110 12| YE
      LE |6       11| BORROW
   CLKDN |7       10| CARRY
     GND |8        9| CLKUP
         +----------+

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    HEF-40147
  10-to-4 line noninverting priority encoder. 
      +---+--+---+
   A4 |1  +--+ 16| VCC
   A5 |2       15| A0
   A6 |3       14| Y3
   A7 |4       13| A3
   A8 |5 40147 12| A2
   Y2 |6       11| A1
   Y1 |7       10| A9
  GND |8        9| Y0
      +----------+


    HEF-40160
  4-bit synchronous decade counter with load, 
  asynchronous reset and ripple carry output. 
       +---+--+---+
  /RST |1  +--+ 16| VCC
   CLK |2       15| RCO
    P0 |3       14| Q0
    P1 |4   74  13| Q1
    P2 |5  160  12| Q2
    P3 |6       11| Q3
   ENP |7       10| ENT
   GND |8        9| /LOAD
       +----------+

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    HEF-40161
  4-bit synchronous binary counter with load, 
  asynchronous reset and ripple carry output. 
       +---+--+---+
  /RST |1  +--+ 16| VCC
   CLK |2       15| RCO
    P0 |3       14| Q0
    P1 |4   74  13| Q1
    P2 |5  161  12| Q2
    P3 |6       11| Q3
   ENP |7       10| ENT
   GND |8        9| /LOAD
       +----------+


    HEF-40162
  4-bit synchronous decade counter with load, 
  reset and ripple carry output. 
       +---+--+---+
  /RST |1  +--+ 16| VCC
   CLK |2       15| RCO
    P0 |3       14| Q0
    P1 |4   74  13| Q1
    P2 |5  162  12| Q2
    P3 |6       11| Q3
   ENP |7       10| ENT
   GND |8        9| /LOAD
       +----------+

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    HEF-40163
  4-bit synchronous binary counter with load, 
  reset and ripple carry output. 
       +---+--+---+
  /RST |1  +--+ 16| VCC
   CLK |2       15| RCO
    P0 |3       14| Q0
    P1 |4   74  13| Q1
    P2 |5  163  12| Q2
    P3 |6       11| Q3
   ENP |7       10| ENT
   GND |8        9| /LOAD
       +----------+


    HEF-40174
  6-bit D flip-flop with reset. 
       +---+--+---+            +----+---+---*---+
  /RST |1  +--+ 16| VCC        |/RST|CLK| D | Q |
    Q0 |2       15| Q6         +====+===+===*===+
    D0 |3       14| D5         |  0 | X | X | 0 |
    D1 |4   74  13| D4         |  1 | / | 0 | 0 |
    Q1 |5  174  12| Q4         |  1 | / | 1 | 1 |
    D2 |6       11| D3         |  1 |!/ | X | - |
    Q2 |7       10| Q3         +----+---+---*---+
   GND |8        9| CLK
       +----------+

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    HEF-40181
  4-bit 16-function arithmetic logic unit ( A. L. U. ) 
      +---+--+---+
  /B0 |1  +--+ 24| VCC
  /A0 |2       23| /A1
   S3 |3       22| /B1
   S2 |4       21| /A2
   S1 |5       20| /B2
   S0 |6   74  19| /A3
  CIN |7  181  18| /B3
    M |8       17| /G
  /F0 |9       16| COUT
  /F1 |10      15| /P
  /F2 |11      14| A=B
  GND |12      13| /F3
      +----------+


    HEF-40182
  Look-ahead carry generator Capable of anticipating 
  a carry across four binary adders or group of adders. 
  Cascadable to perform full look-ahead across "n-bit" adders.
      +---+--+---+
  /G1 |1  +--+ 16| VCC
  /P1 |2       15| /P2
  /G0 |3       14| /G2
  /P0 |4   74  13| Cn
  /G3 |5  182  12| Cn+X
  /P3 |6       11| Cn+Y
   /P |7       10| /G
  GND |8        9| Cn+Z
      +----------+

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    HEF-40192
  4-bit synchronous decade up/down counter with asynchronous 
  load and reset, and separate up and down clocks, carry and 
  borrow outputs. 
       +---+--+---+
    P1 |1  +--+ 16| VCC
    Q1 |2       15| P0
    Q0 |3       14| RST
  DOWN |4   74  13| /BORROW
    UP |5  192  12| /CARRY
    Q2 |6       11| /LOAD
    Q3 |7       10| P2
   GND |8        9| P3
       +----------+


    HEF-40193
  4-bit synchronous binary up/down counter with asynchronous 
  load and reset, and separate up and down clocks. Carry and 
  borrow outputs. 
       +---+--+---+
    P1 |1  +--+ 16| VCC
    Q1 |2       15| P0
    Q0 |3       14| RST
  DOWN |4   74  13| /BORROW
    UP |5  193  12| /CARRY
    Q2 |6       11| /LOAD
    Q3 |7       10| P2
   GND |8        9| P3
       +----------+

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    HEF-40194
  4-bit bidirectional universal shift register with asynchronous reset. 
       +---+--+---+            +---+---*---------------+
  /RST |1  +--+ 16| VCC        | S1| S0| Function      |
     D |2       15| Q0         +===+===*===============+
    P0 |3       14| Q1         | 0 | 0 | Hold          |
    P1 |4 40194 13| Q2         | 0 | 1 | Shift right   |
    P2 |5 74194 12| Q3         | 1 | 0 | Shift left    |
    P3 |6       11| CLK        | 1 | 1 | Parallel load |
     L |7       10| S1         +---+---*---------------+
   GND |8        9| S0
       +----------+


    HEF-40208
   4 x 4-bit 3-state synchronous triple-port register file. 
      +-----+--+-----+
  1Q3 |1    +--+   24| VCC
  1Q2 |2           23| 1Q1
  1RD |3           22| 1Q0
  2Q0 |4           21| 2RD
  2Q1 |5           20| D0
  2Q2 |6           19| D1
  2Q3 |7   40108   18| D2
  WA0 |8           17| D3
  WA1 |9           16| WCLK
 2RA1 |10          15| WR
 2RA0 |11          14| 1RA1
  GND |12          13| 1RA0
      +--------------+


    HEF-40257
  8-to-4 line 3-state noninverting data selector / multiplexer. 
      +---+--+---+
    S |1  +--+ 16| VCC
  1A0 |2       15| /EN
  1A1 |3       14| 4A0
   1Y |4   74  13| 4A1
  2A0 |5  257  12| 4Y
  2A1 |6       11| 3A0
   2Y |7       10| 3A1
  GND |8        9| 3Y
      +----------+

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    " 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 December 31st 2013