Part Number: SN75453B Other Parts Discussed in Thread: SN55453B Tool/software: Good afternoon. We have been using SN75453B for more than 10 years. The total number of installed chips is more than 50,000 pcs.
The total failure rate did not exceed 1%…
Part Number: SN75453B Other Parts Discussed in Thread: SN75451B Hello,
My customer works on SN75453BD with VCC=5V and connected pull-down resistor(22kOhm) on each input pin to expect low level on the output. However the output was Hi with the input…
Part Number: SN75453B Hi Team,
Upon checking the datasheet of SN75453B and DS75453M, it seems these devices are compatible. Can SN75453B directly replace DS75453M?
Regards,
Danilo
Part Number: SN75453B Other Parts Discussed in Thread: TPL7407LA , DS3668 , ULN2003A Hello.
We have been using the SN75453 controlling 2 channels with loads drawing no more than 30 mA and running at 36 Hz with 50% duty cycle. We now need to expand and…
Part Number: SN75453B Hi Team,
From our understanding, the output stage on Figure 4 of the SN75453B datasheet is given by the open collector configuration which is tied to a reference voltage VS. However, the high level output voltage of the device…
Jejomar,
The only additional information I found was this separate revision of the datasheet:
/cfs-file/__key/communityserver-discussions-components-files/196/SN55452B_5B00_slrs021a_5D00_.pdf
Other than this, we will not have any information as…
Christopher,
The PDF you attached is for the SN75453B not the SN75454B.
The 53 is a OR gate so LED is OFF (output high) when either input is high.
The 54 is a NOR gate so LED is ON (output low) when either input is high.
Hello Andrey,
We have not verified this absolutely, but from what we were able to trace, we believe the SN79518 is the same as the SN55452B. Assuming you have the schematic for your PLC, see if this matches the functions:
SN55452B[slrs021a].pdf
…
