• State
  • Replies 1 reply
  • Subscribers 33 subscribers
  • Views 33 views
  • Users 0 members are here
Support feedback
Options
Options
Related

MAX232E: Malfunction of Mexican built RS-232 line driver/receiver MAX232E

Munir Ben Sabeur
Prodigy 10 points
Part Number: MAX232E

Tool/software:

To whom it may concern.

 

Immediate priority needs to be given to the concern raised by  our contract manufacturer,  Creation Technologies, pertaining to MAX232E (5-V dual channel 250kbps RS-232 line driver/receiver with +/-9V output & +/-15-kV IEC-ESD protection). It appears that the parts made by your facility in Mexico are not performing the same way as the parts produced in the TI manufacturing facility in Malaysia. There is a discrepancy in the function for this component.

 

The components produced in Mexico are marked as follows :

 TI4AAFKPM

MAX232EI

Note : This component does not have the Texas Instruments logo printed. 

The components produced in Malaysia are marked as follows :

 47AD4FKG4

MAX232EI

Note : This component has the Texas Instruments logo printed. 

 

Please note the differences in the marking and confirm that the components from Mexico are not counterfeit.  Also, please provide information about functional difference of the 2 components.

 

This  request needs to be treated as a priority because this is currently affecting manufacturing at Communications and Power Industries.

 

There seems to be a difference in the impedance levels of the component made in Mexico since there  is a need to hook-up additional unrequired connectors to be able to wake-up the RS-232 line driver/receiver. It seems as though the device made in Mexico is exhibiting a slower response than the one produced in  Malaysia. Also,  please let us know if TI has had any similar feedback from other Intergrators using the component from Mexico.

 

Also, please advise if there is a possibility of replacing the Mexico stock with the stock produced in Malaysia and whether  this  can be coordinated through TI directly.

 

Please prioritize this request and advise before the end of this week.

 

Your prompt help and feedback are greatly appreciated.

 

Thanks

 

Munir Ben Sabeur

Manufacturing Engineering

Power Electronics

SMP Division

Communications and Power Industries

Tel : 905-702-2222 ext 320

Email: munir.sabeur@cpii.com

  • 0
    TI__Guru 73321 points

    Munir,

    The two devices are functionally the same. 

    The impedance differences come from the fact that the device's are different designs. Generally, the newer designs perform better than the older one because it uses modern day process technologies. 

    The most common customers reports of an "issue" is the CM's have something called an in-circuit test (ICT) which provide fail positives with the new designed dies. The CM's need to essentially change/update their limits on their ICTs for the newer die's difference in impedance levels. 

    -Bobby