TTL ICs
4 * 2-NAND
Available ICs:
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 ICs:
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 ICs:
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 ICs:
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 ICs: 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 ICs: 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 ICs: 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 ICs: 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 ICs: 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 ICs: 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 ICs: 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 ICs: 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 ICs: 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 ICs: 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 ICs: 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 ICs: 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-flipflop
Available ICs: 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-flipflop
Available ICs: 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 ICs: 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 ICs: 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 ICs: 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 ICs: 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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