= = = = = = = = = = =
LM/CD 7400 series TTLIC's: 7400 to 7448 ( 7449 discontinued )
. . . . . . . . 
. . . . . . . .
Email us :sales@unitechelectronics.com
The TTL building blocks 7400 and 74LS00 series of TTL logic IC's.
------------------------------------------------------------------------
7400
Quad 2-input NAND gates.
+---+--+---+ +---+---*---+ __
1A |1 +--+ 14| VCC | A | B |/Y | /Y = AB
1B |2 13| 4B +===+===*===+
/1Y |3 12| 4A | 0 | 0 | 1 |
2A |4 7400 11| /4Y | 0 | 1 | 1 |
2B |5 10| 3B | 1 | 0 | 1 |
/2Y |6 9| 3A | 1 | 1 | 0 |
GND |7 8| /3Y +---+---*---+
+----------+
Positive Logic
__
Y = AB
** Click here for TOP of page **
Equivalent Chips
- SN5400 (J)
- SN54H00 (J)
- SN54L00 (J)
- SN54LS00 (J,W)
- SN54S00 (J,W)
- SN7400 (J,N)
- SN74H00 (J,N)
- SN74L00 (J,N)
- SN74LS00 (J,N)
- SN47S00 (J,N)
7401
Quad 2-input open-collector NAND gates.
+---+--+---+ +---+---*---+ __
/1Y |1 +--+ 14| VCC | A | B |/Y | /Y = AB
1A |2 13| /4Y +===+===*===+
1B |3 12| 4B | 0 | 0 | Z |
/2Y |4 7401 11| 4A | 0 | 1 | Z |
2A |5 10| /3Y | 1 | 0 | Z |
2B |6 9| 3B | 1 | 1 | 0 |
GND |7 8| 3A +---+---*---+
+----------+
7402
Quad 2-input NOR gates.
+---+--+---+ +---+---*---+ ___
/1Y |1 +--+ 14| VCC | A | B |/Y | /Y = A+B
1A |2 13| /4Y +===+===*===+
1B |3 12| 4B | 0 | 0 | 1 |
/2Y |4 7402 11| 4A | 0 | 1 | 0 |
2A |5 10| /3Y | 1 | 0 | 0 |
2B |6 9| 3B | 1 | 1 | 0 |
GND |7 8| 3A +---+---*---+
+----------+
** Click here for TOP of page **
7403
Quad 2-input open-collector NAND gates.
+---+--+---+ +---+---*---+ __
1A |1 +--+ 14| VCC | A | B |/Y | /Y = AB
1B |2 13| 4B +===+===*===+
/1Y |3 12| 4A | 0 | 0 | Z |
2A |4 7403 11| /4Y | 0 | 1 | Z |
2B |5 10| 3B | 1 | 0 | Z |
/2Y |6 9| 3A | 1 | 1 | 0 |
GND |7 8| /3Y +---+---*---+
+----------+
7404
Hex inverters.
+---+--+---+ +---*---+ _
1A |1 +--+ 14| VCC | A |/Y | /Y = A
/1Y |2 13| 6A +===*===+
2A |3 12| /6Y | 0 | 1 |
/2Y |4 7404 11| 5A | 1 | 0 |
3A |5 10| /5Y +---*---+
/3Y |6 9| 4A
GND |7 8| /4Y
+----------+
** Click here for TOP of page **
Positive Logic
_
Y = A
Equivalent Chips
- SN5404 (J)
- SN54H04 (J)
- SN54L04 (J)
- SN54LS04 (J,W)
- SN54S04 (J,W)
- SN7404 (J,N)
- SN74H04 (J,N)
- SN74L04 (J,N)
- SN74LS04 (J,N)
- SN47S04 (J,N)
7405
Hex open-collector inverters.
+---+--+---+ +---*---+ _
1A |1 +--+ 14| VCC | A |/Y | /Y = A
/1Y |2 13| 6A +===*===+
2A |3 12| /6Y | 0 | Z |
/2Y |4 7405 11| 5A | 1 | 0 |
3A |5 10| /5Y +---*---+
/3Y |6 9| 4A
GND |7 8| /4Y
+----------+
** Click here for TOP of page **
7406
Hex open-collector high-voltage inverters.
Maximum output voltage is 30V.
+---+--+---+ +---*---+ _
1A |1 +--+ 14| VCC | A |/Y | /Y = A
/1Y |2 13| 6A +===*===+
2A |3 12| /6Y | 0 | Z |
/2Y |4 7406 11| 5A | 1 | 0 |
3A |5 10| /5Y +---*---+
/3Y |6 9| 4A
GND |7 8| /4Y
+----------+
7407
Hex open-collector high-voltage buffers.
Maximum output voltage
is 30V. +---+--+---+ +---*---+
1A |1 +--+ 14| VCC | A | Y | Y = A
1Y |2 13| 6A +===*===+
2A |3 12| 6Y | 0 | 0 |
2Y |4 7407 11| 5A | 1 | Z |
3A |5 10| 5Y +---*---+
3Y |6 9| 4A
GND |7 8| 4Y
+----------+
** Click here for TOP of page **
7408
Quad 2-input AND gates.
+---+--+---+ +---+---*---+
1A |1 +--+ 14| VCC | A | B | Y | Y = AB
1B |2 13| 4B +===+===*===+
1Y |3 12| 4A | 0 | 0 | 0 |
2A |4 7408 11| 4Y | 0 | 1 | 0 |
2B |5 10| 3B | 1 | 0 | 0 |
2Y |6 9| 3A | 1 | 1 | 1 |
GND |7 8| 3Y +---+---*---+
+----------+
Positive Logic
Y = AB
7409
Quad 2-input open-collector AND gates.
+---+--+---+ +---+---*---+
1A |1 +--+ 14| VCC | A | B | Y | Y = AB
1B |2 13| 4B +===+===*===+
1Y |3 12| 4A | 0 | 0 | 0 |
2A |4 7409 11| 4Y | 0 | 1 | 0 |
2B |5 10| 3B | 1 | 0 | 0 |
2Y |6 9| 3A | 1 | 1 | Z |
GND |7 8| 3Y +---+---*---+
+----------+
** Click here for TOP of page **
7410
Triple 3-input NAND gates.
+---+--+---+ +---+---+---*---+ ___
1A |1 +--+ 14| VCC | A | B | C |/Y | /Y = ABC
1B |2 13| 1C +===+===+===*===+
2A |3 12| /1Y | 0 | X | X | 1 |
2B |4 7410 11| 3C | 1 | 0 | X | 1 |
2C |5 10| 3B | 1 | 1 | 0 | 1 |
/2Y |6 9| 3A | 1 | 1 | 1 | 0 |
GND |7 8| /3Y +---+---+---*---+
+----------+
Positive Logic
___
Y = ABC
7411
Triple 3-input AND gates.
+---+--+---+ +---+---+---*---+
1A |1 +--+ 14| VCC | A | B | C | Y | Y = ABC
1B |2 13| 1C +===+===+===*===+
2A |3 12| 1Y | 0 | X | X | 0 |
2B |4 7411 11| 3C | 1 | 0 | X | 0 |
2C |5 10| 3B | 1 | 1 | 0 | 0 |
2Y |6 9| 3A | 1 | 1 | 1 | 1 |
GND |7 8| 3Y +---+---+---*---+
+----------+
** Click here for TOP of page **
7412
Triple 3-input open-collector NAND gates.
+---+--+---+ +---+---+---*---+ ___
1A |1 +--+ 14| VCC | A | B | C |/Y | /Y = ABC
1B |2 13| 1C +===+===+===*===+
2A |3 12| /1Y | 0 | X | X | Z |
2B |4 7410 11| 3C | 1 | 0 | X | Z |
2C |5 10| 3B | 1 | 1 | 0 | Z |
/2Y |6 9| 3A | 1 | 1 | 1 | 0 |
GND |7 8| /3Y +---+---+---*---+
+----------+
7413
Dual 4-input NAND gates with schmitt-trigger inputs.
0.8V
typical input hysteresis at VCC=+5V.
+---+--+---+ +---+---+---+---*---+ ____
1A |1 +--+ 14| VCC | A | B | C | D |/Y | /Y = ABCD
1B |2 13| 2D +===+===+===+===*===+
|3 12| 2C | 0 | X | X | X | 1 |
1C |4 7413 11| | 1 | 0 | X | X | 1 |
1D |5 10| 2B | 1 | 1 | 0 | X | 1 |
/1Y |6 9| 2A | 1 | 1 | 1 | 0 | 1 |
GND |7 8| /2Y | 1 | 1 | 1 | 1 | 0 |
+----------+ +---+---+---+---*---+
** Click here for TOP of page **
7414
Hex inverters with schmitt-trigger inputs.
0.8V typical input hysteresis at VCC=+5V.
+---+--+---+ +---*---+ _
1A |1 +--+ 14| VCC | A |/Y | /Y = A
/1Y |2 13| 6A +===*===+
2A |3 12| /6Y | 0 | 1 |
/2Y |4 7414 11| 5A | 1 | 0 |
3A |5 10| /5Y +---*---+
/3Y |6 9| 4A
GND |7 8| /4Y
+----------+
7415
Triple 3-input open-collector AND gates.
+---+--+---+ +---+---+---*---+
1A |1 +--+ 14| VCC | A | B | C | Y | Y = ABC
1B |2 13| 1C +===+===+===*===+
2A |3 12| 1Y | 0 | X | X | 0 |
2B |4 7415 11| 3C | 1 | 0 | X | 0 |
2C |5 10| 3B | 1 | 1 | 0 | 0 |
2Y |6 9| 3A | 1 | 1 | 1 | Z |
GND |7 8| 3Y +---+---+---*---+
+----------+
** Click here for TOP of page **
7416
Hex open-collector high-voltage inverters.
Maximum output voltage is 15V.
+---+--+---+ +---*---+ _
1A |1 +--+ 14| VCC | A |/Y | /Y = A
/1Y |2 13| 6A +===*===+
2A |3 12| /6Y | 0 | Z |
/2Y |4 7416 11| 5A | 1 | 0 |
3A |5 10| /5Y +---*---+
/3Y |6 9| 4A
GND |7 8| /4Y
+----------+
7417
Hex open-collector high-voltage buffers.
Maximum output voltage is 15V.
+---+--+---+ +---*---+
1A |1 +--+ 14| VCC | A | Y | Y = A
1Y |2 13| 6A +===*===+
2A |3 12| 6Y | 0 | 0 |
2Y |4 7417 11| 5A | 1 | Z |
3A |5 10| 5Y +---*---+
3Y |6 9| 4A
GND |7 8| 4Y
+----------+
** Click here for TOP of page **
7418
Dual 4-input NAND gates with schmitt-trigger inputs.
0.8V typical input hysteresis at VCC=+5V.
+---+--+---+ +---+---+---+---*---+ ____
1A |1 +--+ 14| VCC | A | B | C | D |/Y | /Y = ABCD
1B |2 13| 2D +===+===+===+===*===+
|3 12| 2C | 0 | X | X | X | 1 |
1C |4 7418 11| | 1 | 0 | X | X | 1 |
1D |5 10| 2B | 1 | 1 | 0 | X | 1 |
/1Y |6 9| 2A | 1 | 1 | 1 | 0 | 1 |
GND |7 8| /2Y | 1 | 1 | 1 | 1 | 0 |
+----------+ +---+---+---+---*---+
7419
Hex inverters with schmitt-trigger line-receiver inputs.
0.8V typical input hysteresis at VCC=+5V.
+---+--+---+ +---*---+ _
1A |1 +--+ 14| VCC | A |/Y | /Y = A
/1Y |2 13| 6A +===*===+
2A |3 12| /6Y | 0 | 1 |
/2Y |4 7414 11| 5A | 1 | 0 |
3A |5 10| /5Y +---*---+
/3Y |6 9| 4A
GND |7 8| /4Y
+----------+
** Click here for TOP of page **
7420
Dual 4-input NAND gates.
+---+--+---+ +---+---+---+---*---+ ____
1A |1 +--+ 14| VCC | A | B | C | D |/Y | /Y = ABCD
1B |2 13| 2D +===+===+===+===*===+
|3 12| 2C | 0 | X | X | X | 1 |
1C |4 7420 11| | 1 | 0 | X | X | 1 |
1D |5 10| 2B | 1 | 1 | 0 | X | 1 |
/1Y |6 9| 2A | 1 | 1 | 1 | 0 | 1 |
GND |7 8| /2Y | 1 | 1 | 1 | 1 | 0 |
+----------+ +---+---+---+---*---+
7421
Dual 4-input AND gates.
+---+--+---+ +---+---+---+---*---+
1A |1 +--+ 14| VCC | A | B | C | D | Y | Y = ABCD
1B |2 13| 2D +===+===+===+===*===+
|3 12| 2C | 0 | X | X | X | 0 |
1C |4 7421 11| | 1 | 0 | X | X | 0 |
1D |5 10| 2B | 1 | 1 | 0 | X | 0 |
1Y |6 9| 2A | 1 | 1 | 1 | 0 | 0 |
GND |7 8| 2Y | 1 | 1 | 1 | 1 | 1 |
+----------+ +---+---+---+---*---+
** Click here for TOP of page **
7422
Dual 4-input open-collector NAND gates.
+---+--+---+ +---+---+---+---*---+ ____
1A |1 +--+ 14| VCC | A | B | C | D |/Y | /Y = ABCD
1B |2 13| 2D +===+===+===+===*===+
|3 12| 2C | 0 | X | X | X | Z |
1C |4 7422 11| | 1 | 0 | X | X | Z |
1D |5 10| 2B | 1 | 1 | 0 | X | Z |
/1Y |6 9| 2A | 1 | 1 | 1 | 0 | Z |
GND |7 8| /2Y | 1 | 1 | 1 | 1 | 0 |
+----------+ +---+---+---+---*---+
7424
Quad 2-input NAND gates with schmitt-trigger line-receiver inputs.
0.8V typical input hysteresis at VCC=+5V.
+---+--+---+ +---+---*---+ __
1A |1 +--+ 14| VCC | A | B |/Y | /Y = AB
1B |2 13| 4B +===+===*===+
/1Y |3 12| 4A | 0 | 0 | 1 |
2A |4 7424 11| /4Y | 0 | 1 | 1 |
2B |5 10| 3B | 1 | 0 | 1 |
/2Y |6 9| 3A | 1 | 1 | 0 |
GND |7 8| /3Y +---+---*---+
+----------+
** Click here for TOP of page **
7425
Dual 4-input NOR gates with enable input.
+---+--+---+ __________
1A |1 +--+ 14| VCC Y = G(A+B+C+D)
1B |2 13| 2D
1G |3 12| 2C
1C |4 7425 11| 2G
1D |5 10| 2B
/1Y |6 9| 2A
GND |7 8| /2Y
+----------+
7426
Quad 2-input open-collector high-voltage NAND gates.
Maximum output voltage is 15V.
+---+--+---+ +---+---*---+ __
1A |1 +--+ 14| VCC | A | B |/Y | /Y = AB
1B |2 13| 4B +===+===*===+
/1Y |3 12| 4A | 0 | 0 | Z |
2A |4 7426 11| /4Y | 0 | 1 | Z |
2B |5 10| 3B | 1 | 0 | Z |
/2Y |6 9| 3A | 1 | 1 | 0 |
GND |7 8| /3Y +---+---*---+
+----------+
** Click here for TOP of page **
7427
Triple 3-input NOR gates.
+---+--+---+ +---+---+---*---+ _____
1A |1 +--+ 14| VCC | A | B | C |/Y | /Y = A+B+C
1B |2 13| 1C +===+===+===*===+
2A |3 12| /1Y | 0 | 0 | 0 | 1 |
2B |4 7427 11| 3C | 0 | 0 | 1 | 0 |
2C |5 10| 3B | 0 | 1 | X | 0 |
/2Y |6 9| 3A | 1 | X | X | 0 |
GND |7 8| /3Y +---+---+---*---+
+----------+
7428
Quad 2-input NOR gates with buffered outputs.
+---+--+---+ +---+---*---+ ___
/1Y |1 +--+ 14| VCC | A | B |/Y | /Y = A+B
1A |2 13| /4Y +===+===*===+
1B |3 12| 4B | 0 | 0 | 1 |
/2Y |4 7428 11| 4A | 0 | 1 | 0 |
2A |5 10| /3Y | 1 | 0 | 0 |
2B |6 9| 3B | 1 | 1 | 0 |
GND |7 8| 3A +---+---*---+
+----------+
** Click here for TOP of page **
7430
8-input NAND gate.
+---+--+---+ ________
A |1 +--+ 14| VCC /Y = ABCDEFGH
B |2 13|
C |3 12| H
D |4 7430 11| G
E |5 10|
F |6 9|
GND |7 8| /Y
+----------+
Positive Logic
________
Y = ABCDEFGH
7431
Hex delay elements.
Typical delays are 27.5ns (1,6), 46.5ns
(2,5), 6ns (3,4). Improved output currents IoH=-1.2mA, IoL=24mA for gates 3 and
4. +---+--+---+ _ _____
1A |1 +--+ 16| VCC /1Y=1A /4Y=4A.4B
/1Y |2 15| 6A
2A |3 14| /6Y 2Y=2A 5Y=5A
2Y |4 13| 5A _____ _
3A |5 7431 12| 5Y /3Y=3A.3B /6Y=6A
3B |6 11| 4B
/3Y |7 10| 4A
GND |8 9| /4Y
+----------+
** Click here for TOP of page **
7432
Quad 2-input OR gates.
+---+--+---+ +---+---*---+
1A |1 +--+ 14| VCC | A | B | Y | Y = A+B
1B |2 13| 4B +===+===*===+
1Y |3 12| 4A | 0 | 0 | 0 |
2A |4 7432 11| 4Y | 0 | 1 | 1 |
2B |5 10| 3B | 1 | 0 | 1 |
2Y |6 9| 3A | 1 | 1 | 1 |
GND |7 8| 3Y +---+---*---+
+----------+
Positive Logic
Y = A+B
7433
Quad 2-input open-collector NOR gates.
+---+--+---+ +---+---*---+ ___
/1Y |1 +--+ 14| VCC | A | B |/Y | /Y = A+B
1A |2 13| /4Y +===+===*===+
1B |3 12| 4B | 0 | 0 | Z |
/2Y |4 7433 11| 4A | 0 | 1 | 0 |
2A |5 10| /3Y | 1 | 0 | 0 |
2B |6 9| 3B | 1 | 1 | 0 |
GND |7 8| 3A +---+---*---+
+----------+
** Click here for TOP of page **
7437
Quad 2-input NAND gates with buffered output.
+---+--+---+ +---+---*---+ __
1A |1 +--+ 14| VCC | A | B |/Y | /Y = AB
1B |2 13| 4B +===+===*===+
/1Y |3 12| 4A | 0 | 0 | 1 |
2A |4 7437 11| /4Y | 0 | 1 | 1 |
2B |5 10| 3B | 1 | 0 | 1 |
/2Y |6 9| 3A | 1 | 1 | 0 |
GND |7 8| /3Y +---+---*---+
+----------+
7438
Quad 2-input open-collector NAND gates with buffered output.
+---+--+---+ +---+---*---+ __
1A |1 +--+ 14| VCC | A | B |/Y | /Y = AB
1B |2 13| 4B +===+===*===+
/1Y |3 12| 4A | 0 | 0 | Z |
2A |4 7438 11| /4Y | 0 | 1 | Z |
2B |5 10| 3B | 1 | 0 | Z |
/2Y |6 9| 3A | 1 | 1 | 0 |
GND |7 8| /3Y +---+---*---+
+----------+
** Click here for TOP of page **
7440
Dual 4-input NAND gates with buffered output.
+---+--+---+ +---+---+---+---*---+ ____
1A |1 +--+ 14| VCC | A | B | C | D |/Y | /Y = ABCD
1B |2 13| 2D +===+===+===+===*===+
|3 12| 2C | 0 | X | X | X | 1 |
1C |4 7440 11| | 1 | 0 | X | X | 1 |
1D |5 10| 2B | 1 | 1 | 0 | X | 1 |
/1Y |6 9| 2A | 1 | 1 | 1 | 0 | 1 |
GND |7 8| /2Y | 1 | 1 | 1 | 1 | 0 |
+----------+ +---+---+---+---*---+
7442
1-of-10 inverting decoder/demultiplexer.
+---+--+---+ +---+---+---+---*---+---+---+---+
/Y0 |1 +--+ 16| VCC | S3| S2| S1| S0|/Y0|/Y1|...|/Y9|
/Y1 |2 15| S0 +===+===+===+===*===+===+===+===+
/Y2 |3 14| S1 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 |
/Y3 |4 13| S2 | 0 | 0 | 0 | 1 | 1 | 0 | 1 | 1 |
/Y4 |5 7442 12| S3 | . | . | . | . | 1 | 1 | . | 1 |
/Y5 |6 11| /Y9 | 1 | 0 | 0 | 1 | 1 | 1 | 1 | 0 |
/Y6 |7 10| /Y8 | 1 | 0 | 1 | X | 1 | 1 | 1 | 1 |
GND |8 9| /Y7 | 1 | 1 | X | X | 1 | 1 | 1 | 1 |
+----------+ +---+---+---+---*---+---+---+---+
** Click here for TOP of page **
7446, 7447
Open-collector BCD to 7-segment decoder/common-anode LED
driver with ripple blank input and output.
The 7446 has 30V outputs, 7447 has 15V outputs.
+---+--+---+
A1 |1 +--+ 16| VCC
A2 |2 15| /YF
/LT |3 14| /YG
/RBO |4 13| /YA
/RBI |5 7447 12| /YB
A3 |6 11| /YC
A0 |7 10| /YD
GND |8 9| /YE
+----------+
7447
Open-collector BCD to 7-segment decoder/common-anode LED
driver with ripple blank input and output.
The 7447 has 15V outputs.
+---+--+---+
A1 |1 +--+ 16| VCC
A2 |2 15| /YF
/LT |3 14| /YG
/RBO |4 13| /YA
/RBI |5 7447 12| /YB
A3 |6 11| /YC
A0 |7 10| /YD
GND |8 9| /YE
+----------+
** Click here for TOP of page **
7448
BCD to 7-segment decoder/common-cathode LED driver with ripple
blank input and output.
+---+--+---+
A1 |1 +--+ 16| VCC
A2 |2 15| YF
/LT |3 14| YG
/RBO |4 13| YA
/RBI |5 7448 12| YB
A3 |6 11| YC
A0 |7 10| YD
GND |8 9| YE
+----------+
7449
This 7-segment display decoder IC has been superceded and is no longer in production.
It (used to)convert a 4-bit binary-coded decimal value, that is the numbers 0 to 9 coded
as binary patterns 0000 to 1001 into the code required to drive a seven-segment display.
The additional 'ndark' input allows to disable all outputs. This was discontinued in 1986.
. . . . . . . . 
. . . . . . . .
" 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.
E. &. O. E.