Ruud's Commodore Site: TTL-IC's

TTL-IC's

DISCLAIMER

All names with a copyright are acknowledged.
If the reader uses information from this document to write software or build hardware, then it is on his own account. I cannot be held responsible for blowing up your computer, mother-in-law or whatever; it will always be your own fault.

Available IC's:
Type  Description            
----  -----------------------
7400  Normal version         
7403  Open Collector         
7424  Schmitt trigger        
7426  Open Collector (15V)   
7437	Driver                 
7438	Open Collector / driver

                   ___    
Used logic:    Y = A*B

 Input     Output
-------    ------
Pin Pin     Pin  
 A   B       Y   
  
 L   L       H   
 L   H       H   
 H   L       H   
 H   H       L

      +----+  +----+     
  1A -| 1  +--+ 14 |- +5V
      |            |     
  1B -| 2       13 |- 4A 
      |            |     
  1Y -| 3       12 |- 4B 
      |    7400    |     
  2A -| 4       11 |- 4Y 
      |            |     
  2B -| 5       10 |- 3A 
      |            |     
  2Y -| 6        9 |- 3B 
      |            |     
 GND -| 7        8 |- 3Y 
      +------------+

4 * 2-NAND

Available IC's:
Type  Description              
----  -------------------------
7401	Open Collector           
7439	Open Collector (3 * Ilow)

                   ___    
Used logic:    Y = A*B

 Input     Output
-------    ------
Pin Pin     Pin  
 A   B       Y   
  
 L   L       H   
 L   H       H   
 H   L       H   
 H   H       L

      +----+  +----+     
  1Y -| 1  +--+ 14 |- +5V
      |            |     
  1A -| 2       13 |- 4Y 
      |            |     
  1B -| 3       12 |- 4A 
      |    7401    |     
  2Y -| 4       11 |- 4B 
      |            |     
  2A -| 5       10 |- 3Y 
      |            |     
  2B -| 6        9 |- 3A 
      |            |     
 GND -| 7        8 |- 3B 
      +------------+

4 * 2-NOR

Available IC's:
Type  Description   
----  --------------
7402	Normal version
7428  Driver        
7433  Open Collector

                   ___    
Used logic:    Y = A+B

 Input     Output
-------    ------
Pin Pin     Pin  
 A   B       Y   

 L   L       H   
 L   H       L   
 H   L       L   
 H   H       L

      +----+  +----+     
  1Y -| 1  +--+ 14 |- +5V
      |            |     
  1A -| 2       13 |- 4Y 
      |            |     
  1B -| 3       12 |- 4A 
      |    7402    |     
  2Y -| 4       11 |- 4B 
      |            |     
  2A -| 5       10 |- 3Y 
      |            |     
  2B -| 6        9 |- 3A 
      |            |     
 GND -| 7        8 |- 3B 
      +------------+

6 * inverter

Available IC's:
Type  Description                              
----  -----------------------------------------
7404	Normal version                           
7405	Open Collector                           
7406	Open Collector / driver / 30V            
7414  Schmitt trigger                          
7416  Open Collector / driver / 15V            
7419  Schmitt trigger / improved line receiving

                   _
Used logic:    Y = A

Input   Output
-----   ------
 Pin     Pin  
  A       Y   

  L       H   
  H       L

      +----+  +----+     
  1A -| 1  +--+ 14 |- +5V
      |            |     
  1Y -| 2       13 |- 6A 
      |            |     
  2A -| 3       12 |- 6Y 
      |    7404    |     
  2Y -| 4       11 |- 5A 
      |            |     
  3A -| 5       10 |- 5Y 
      |            |     
  3Y -| 6        9 |- 4A 
      |            |     
 GND -| 7        8 |- 4Y 
      +------------+

6 * buffer

Available IC's:
Type  Description                  
----  -----------------------------
7407	Open Collector / driver / 30V
7417  Open Collector / driver / 15V

Used logic:    Y = A

Input   Output
-----   ------
 Pin     Pin  
  A       Y   

  L       L   
  H       H

      +----+  +----+     
  1A -| 1  +--+ 14 |- +5V
      |            |     
  1Y -| 2       13 |- 6A 
      |            |     
  2A -| 3       12 |- 6Y 
      |    7407    |     
  2Y -| 4       11 |- 5A 
      |            |     
  3A -| 5       10 |- 5Y 
      |            |     
  3Y -| 6        9 |- 4A 
      |            |     
 GND -| 7        8 |- 4Y 
      +------------+

4 * 2-AND

Available IC's:
Type  Description   
----  --------------
7408	Normal version
7409	Open Collector

Used logic:    Y = A*B

 Input     Output
-------    ------
Pin Pin     Pin  
 A   B       Y   
  
 L   L       L   
 L   H       L   
 H   L       L   
 H   H       H

      +----+  +----+     
  1A -| 1  +--+ 14 |- +5V
      |            |     
  1B -| 2       13 |- 4A 
      |            |     
  1Y -| 3       12 |- 4B 
      |    7408    |     
  2A -| 4       11 |- 4Y 
      |            |     
  2B -| 5       10 |- 3A 
      |            |     
  2Y -| 6        9 |- 3B 
      |            |     
 GND -| 7        8 |- 3Y 
      +------------+

3 * 3-NAND

Available IC's:
Type  Description   
----  --------------
7410	Normal version
7412	Open Collector

Used logic:    Y = A*B*C

 Input        Output
-----------   ------
Pin Pin Pin    Pin  
 A   B   C      Y   
  
 L   L   L      H   
 L   L   H      H   
 L   H   L      H   
 L   H   H      H   
 H   L   L      H   
 H   L   H      H   
 H   H   L      H   
 H   H   H      L

      +----+  +----+     
  1A -| 1  +--+ 14 |- +5V
      |            |     
  1B -| 2       13 |- 1C 
      |            |     
  2A -| 3       12 |- 1Y 
      |    7410    |     
  2B -| 4       11 |- 3A 
      |            |     
  2C -| 5       10 |- 3B 
      |            |     
  2Y -| 6        9 |- 3C 
      |            |     
 GND -| 7        8 |- 3Y 
      +------------+

3 * 3-AND

Available IC's:
Type  Description   
----  --------------
7411  Normal version
7415  Open Collector

Used logic:    Y = A*B*C

 Input        Output
-----------   ------
Pin Pin Pin    Pin  
 A   B   C      Y    
  
 L   L   L      L   
 L   L   H      L   
 L   H   L      L   
 L   H   H      L   
 H   L   L      L   
 H   L   H      L   
 H   H   L      L   
 H   H   H      H

      +----+  +----+     
  1A -| 1  +--+ 14 |- +5V
      |            |     
  1B -| 2       13 |- 1C 
      |            |     
  2A -| 3       12 |- 1Y 
      |    7411    |     
  2B -| 4       11 |- 3A 
      |            |     
  2C -| 5       10 |- 3B 
      |            |     
  2Y -| 6        9 |- 3C 
      |            |     
 GND -| 7        8 |- 3Y 
      +------------+

2 * 4-NAND

Available IC's:
Type  Description             
----  ------------------------
7413	Schmitt trigger         
7418  Schmitt trigger / driver
7420  Normal version          
7422  Open Collector          
7440	Driver

Used logic:    Y = A*B*C*D

     Input        Output
---------------   ------
Pin Pin Pin Pin    Pin  
 1   2   4   5      6    
  
 L   x   x   x      H   
 x   L   x   x      H   
 x   x   L   x      H   
 x   x   x   L      H   
 H   H   H   H      L

      +----+  +----+     
  1A -| 1  +--+ 14 |- +5V
      |            |     
  1B -| 2       13 |- 2A 
      |            |     
  nc -| 3       12 |- 2B 
      |    7420    |     
  1C -| 4       11 |- nc 
      |            |     
  1D -| 5       10 |- 2C 
      |            |     
  1Y -| 6        9 |- 2D 
      |            |     
 GND -| 7        8 |- 2Y 
      +------------+

2 * 4-AND

Available IC's:
Type  Description   
----  --------------
7421  Normal version

Used logic:    Y = A*B*C*D

     Input        Output
---------------   ------
Pin Pin Pin Pin    Pin  
 A   B   C   D      Y    
  
 L   x   x   x      L   
 x   L   x   x      L   
 x   x   L   x      L   
 x   x   x   L      L   
 H   H   H   H      H

      +----+  +----+     
  1A -| 1  +--+ 14 |- +5V
      |            |     
  1B -| 2       13 |- 2A 
      |            |     
  nc -| 3       12 |- 2B 
      |    7421    |     
  1C -| 4       11 |- nc 
      |            |     
  1D -| 5       10 |- 2C 
      |            |     
  1Y -| 6        9 |- 2D 
      |            |     
 GND -| 7        8 |- 2Y 
      +------------+

2 * 4-NOR with strobe

Available IC's:
Type  Description   
----  --------------
7425  Normal version

Used logic:    Y = G*(A+B+C+D)

       Input          Output
-------------------   ------
Pin Pin Pin Pin Pin    Pin  
 G   A   B   C   D      Y    
  
 L   x   x   x   x      H   
 H   H   x   x   x      L   
 H   x   H   x   x      L   
 H   x   x   H   x      L   
 H   x   x   x   H      L   
 H   L   L   L   L      H

      +----+  +----+     
  1A -| 1  +--+ 14 |- +5V
      |            |     
  1B -| 2       13 |- 2A 
      |            |     
   G -| 3       12 |- 2B 
      |    7425    |     
  1C -| 4       11 |- G  
      |            |     
  1D -| 5       10 |- 2C 
      |            |     
  1Y -| 6        9 |- 2D 
      |            |     
 GND -| 7        8 |- 2Y 
      +------------+

3 * 3-NOR

Available IC's:
Type  Description   
----  --------------
7427 Normal version

Used logic:    Y = A+B+C

 Input        Output
-----------   ------
Pin Pin Pin    Pin  
 A   B   C      Y    
  
 L   L   L      H   
 L   L   H      L   
 L   H   L      L   
 L   H   H      L   
 H   L   L      L   
 H   L   H      L   
 H   H   L      L   
 H   H   H      L

      +----+  +----+     
  1A -| 1  +--+ 14 |- +5V
      |            |     
  1B -| 2       13 |- 1C 
      |            |     
  2A -| 3       12 |- 1Y 
      |    7427    |     
  2B -| 4       11 |- 3A 
      |            |     
  2C -| 5       10 |- 3B 
      |            |     
  2Y -| 6        9 |- 3C 
      |            |     
 GND -| 7        8 |- 3Y 
      +------------+

1 * 8-NAND

 Available IC's:
Type  Description   
----  --------------
7430	Normal version

Used logic:    Y = A*B*C*D*E*F*G*H

             Input                Output
-------------------------------   ------
Pin Pin Pin Pin Pin Pin Pin Pin    Pin  
 A   B   C   D   E   F   G   H      Y    
  
 L   x   x   x   x   x   x   x      H   
 x   L   x   x   x   x   x   x      H   
 x   x   L   x   x   x   x   x      H   
 x   x   x   L   x   x   x   x      H   
 x   x   x   x   L   x   x   x      H   
 x   x   x   x   x   L   x   x      H   
 x   x   x   x   x   x   L   x      H   
 x   x   x   x   x   x   x   L      H   
 H   H   H   H   H   H   H   H      L

      +----+  +----+     
   A -| 1  +--+ 14 |- +5V
      |            |     
   B -| 2       13 |- nc 
      |            |     
   C -| 3       12 |- G  
      |    7430    |     
   D -| 4       11 |- H  
      |            |     
   E -| 5       10 |- nc 
      |            |     
   F -| 6        9 |- nc 
      |            |     
 GND -| 7        8 |- Y  
      +------------+

Delay elements

Available IC's:
Type  Description   
----  --------------
7431	Normal version

Delay in ns.

Element        TPLH  TPHL  AVG   Gates
-------        ----  ----  ----  -----
Inverting       32    23   27.5   1, 6
Non-inverting   45    48   46.5   2, 5
NAND             6     6    6     3, 4

      +----+  +----+     
  1A -| 1  +--+ 16 |- +5V
      |            |        1Y -| 2       15 |- 6A 
      |            |     
  2A -| 3       14 |- 6Y 
      |            |     
  2Y -| 4       13 |- 5A 
      |    7431    |     
  3A -| 5       12 |- 5Y 
      |            |     
  3B -| 6       11 |- 4A 
      |            |     
  3Y -| 7       10 |- 4B 
      |            |     
 GND -| 8        9 |- 4Y 
      +------------+

4 * 2-OR

Available IC's:
Type  Description   
----  --------------
7432	Normal version

Used logic:    Y = A+B

 Input     Output
-------    ------
Pin Pin     Pin  
 A   B       Y   
  
 L   L       L   
 L   H       H   
 H   L       H   
 H   H       H

      +----+  +----+     
  1A -| 1  +--+ 14 |- +5V
      |            |     
  1B -| 2       13 |- 4A 
      |            |     
  1Y -| 3       12 |- 4B 
      |    7432    |     
  2A -| 4       11 |- 4Y 
      |            |     
  2B -| 5       10 |- 3A 
      |            |     
  2Y -| 6        9 |- 3B 
      |            |     
 GND -| 7        8 |- 3Y 
      +------------+

4-to-10 inverting BCD-decoder

Available IC's:
Type   Description   
-----  --------------
7442   Normal version
7445   Open Collector (30 V)
74145  Open Collector (15 V)
74445  Open Collector (7 V)

    Input        Output
-------------    ------
 D  C  B  A       Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7 Y8 Y9   
  
 L  L  L  L       L  H  H  H  H  H  H  H  H  H 
 L  L  L  H       H  L  H  H  H  H  H  H  H  H 
 L  L  H  L       H  H  L  H  H  H  H  H  H  H 
 L  L  H  H       H  H  H  L  H  H  H  H  H  H 
 L  H  L  L       H  H  H  H  L  H  H  H  H  H 
 L  H  L  H       H  H  H  H  H  L  H  H  H  H 
 L  H  H  L       H  H  H  H  H  H  L  H  H  H 
 L  H  H  H       H  H  H  H  H  H  H  L  H  H 
 H  L  L  L       H  H  H  H  H  H  H  H  L  H 
 H  L  L  H       H  H  H  H  H  H  H  H  H  L 
 H  L  H  L       H  H  H  H  H  H  H  H  H  H 
 H  L  H  H       H  H  H  H  H  H  H  H  H  H 
 H  H  L  L       H  H  H  H  H  H  H  H  H  H 
 H  H  L  H       H  H  H  H  H  H  H  H  H  H 
 H  H  H  L       H  H  H  H  H  H  H  H  H  H 
 H  H  H  H       H  H  H  H  H  H  H  H  H  H

      +----+  +----+     
  Y0 -| 1  +--+ 16 |- +5V       |            |     
  Y1 -| 2       15 |- A  
      |            |     
  Y2 -| 3       14 |- B  
      |            |     
  Y3 -| 4       13 |- C  
      |    7442    |     
  Y4 -| 5       12 |- D  
      |            |     
  Y5 -| 6       11 |- Y9 
      |            |     
  Y6 -| 7       10 |- Y8 
      |            |     
 GND -| 8        9 |- Y7 
      +------------+

D-Flip-flop

Available IC's:
Type  Description   
----  --------------
7474  Normal version

           Input          Output
-----------------------   ------
                              _ 
Preset Clear Clock Data    Q  Q 
  L      H     x    x      H  L 
  H      L     x    x      L  H 
  L      L     x    x      H  H 
  L      H     x    x      H  L 
  H      H     /    H      H  L 
  H      H     /    L      L  H 
  H      H     L    x      -  - 
 
/ Positive edge                 
x Don't care                    
* No change

JK-Flip-flop

Available IC's:
Type   Description                   
-----  ------------------------------
7476   Positive level triggered clock
7476A  Negative edge triggered clock

7476              
           Input            Output
-------------------------   ------
                                _ 
Preset Clear Clock  J  K     Q  Q 
  L      H     x    x  x     H  L 
  H      L     x    x  x     L  H 
  L      L     x    x  x     H  H 
  H      H     H    L  L     -  - 
  H      H     H    H  L     H  L 
  H      H     H    L  H     L  H 
  H      H     H    H  H     T  T 
  
  
7476A              
           Input            Output
-------------------------   ------
                                _ 
Preset Clear Clock  J  K     Q  Q 
  L      H     x    x  x     H  L 
  H      L     x    x  x     L  H 
  L      L     x    x  x     H  H 
  H      H     \    L  L     -  - 
  H      H     \    H  L     H  L 
  H      H     \    L  H     L  H 
  H      H     \    H  H     T  T 
  H      H     H    x  x     -  - 

\ Negative edge                   
T Toggle                          
x Don't care                      
* No change

4 * 2-EXOR

Available IC's:
Type  Description   
----  --------------
7486  Normal version

                   _     _
Used logic:    Y = A*B+A*B

 Input     Output
-------    ------
Pin Pin     Pin  
 1   2       3   
  
 L   L       L   
 L   H       H   
 H   L       H   
 H   H       L

1 * 13-NAND

Available IC's:
Type   Description   
-----  --------------
74133  Normal version

Used logic:    Y = A*B*C*D*E*F*G*H*I*J*K*L*M

3 to 8 multiplexer

Available IC's:
Type   Description   
----   --------------
74138  Normal version

Input                   Output         
---------------------  ------------------------
/G1  /G2  G  A  B  C    0  1  2  3  4  5  6  7 
 H    x   x  x  x  x    H  H  H  H  H  H  H  H 
 x    H   x  x  x  x    H  H  H  H  H  H  H  H 
 x    x   L  x  x  x    H  H  H  H  H  H  H  H 
 L    L   H  L  L  L    L  H  H  H  H  H  H  H 
 L    L   H  L  L  H    H  L  H  H  H  H  H  H 
 L    L   H  L  H  L    H  H  L  H  H  H  H  H 
 L    L   H  L  H  H    H  H  H  L  H  H  H  H 
 L    L   H  H  L  L    H  H  H  H  L  H  H  H 
 L    L   H  H  L  H    H  H  H  H  H  L  H  H 
 L    L   H  H  H  L    H  H  H  H  H  H  L  H 
 L    L   H  H  H  H    H  H  H  H  H  H  H  L

2 * (2 to 4 multiplexer)

Available IC's:
Type   Description   
----   --------------
74139  Normal version

   Input        Output  
---------   ------------
/G  A  B     0  1  2  3 
 H  x  x     H  H  H  H 
 L  L  L     L  H  H  H 
 L  L  H     H  L  H  H 
 L  H  L     H  H  L  H 
 L  H  H     H  H  H  L

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