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SN75ALS174: SN75ALS174 pin assignment

Part Number: SN75ALS174

I would like to know the difference between SN75ALS174 and SN75ALS174A.

According to the below site, 

http://www.ti.com/product/SN75ALS174?keyMatch=SN75ALS174&tisearch=Search-EN-Everything

It shows "The device has the SAME FUNCTIONALITY as the compared device,

but is not pin-for-pin equivalent and may not be parametrically equivalent.

Could you show me the difference?

  • Hello,

    These devices use the same design but are bonded out into different pinouts.  Here is a summary of how the different pins of SN75ALS174DWR map to pins of SN75ALS174ADWR:

    SN75ALS174DWR

    Pin Number

    Pin Function

    Maps to "A" Version Pin

    1

    NC

    NC

    2

    1A

    1

    3

    1Y

    2

    4

    1Z

    4

    5

    1,2EN

    5

    6

    2Z

    6

    7

    2Y

    8

    8

    2A

    9

    9

    GND

    10

    10

    GND

    10

    11

    NC

    NC

    12

    3A

    11

    13

    3Y

    12

    14

    3Z

    14

    15

    3,4EN

    15

    16

    4Z

    16

    17

    4Y

    18

    18

    4A

    19

    19

    VCC

    20

    20

    VCC

    20

    Let us know if you have any further questions.

    Regards,
    Max

  • Thank you.

    Kei Iiyama