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TL16C754C: Difference between TL16C754C and XR16L784IV（MAXLINEAR)

Shinichi Inoue
Guru 21721 points
Part Number: TL16C754C

Dear Specialists,

 The customer wants a replacement proposal regarding XR16L784IV(MAXLINEAR),

XR16L784 has 4ch device, there is TL16C754C for TI.

(1) Could it possible to use TL16C754C instead of XR16L784,

(2) Could you please advise the difference between TL16C754C and XR16L784IV（MAXLINEAR)

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I appreciate your great help in advance.

Best regards,

Shinichi

  • 0
    TI__Expert 8030 points

    Shinichi,

    We are looking into this and will respond tomorrow Dallas time. Thank you for your patience.

    Best, 

    Kenneth

  • 0 in reply to Kenneth Arnold
    Guru 21721 points

    Hi Kenneth,

    Thank you for your reply.

    I'm looking forward to waiting the reply.

    I appreciate your great help and cooperation.

    Best regards,

    Shinichi

  • 0 in reply to Shinichi Inoue
    TI__Expert 8030 points

    Hi Shinichi, 

    Both the TL16C754C and the XR16L784IV are able to function as 4 channel UARTs. The main differences between the two devices are the ways in which they are configured and controlled. The registers in the TL16C754C are mapped to three address bits (A2-A0) and different bit configurations of the LCR Register. The registers in the XR16L784IV are mapped to four address bits (A3-A0) and only a small amount of variations in the 7th bit of the LCR register. These register mapping differences cause similar registers to be located at different addresses in each device.

    In addition to this, the default values of some registers in both devices are different upon reset. The values of some registers in the XR16L784IV are undefined after reset, while most register values in the TL16CP754C are defined after reset. There are also some differences in pin activation levels between the two devices (RESET, for example, is active high on the TL16CP754C and active low on the XR16L784IV). 

    Along with the configuration and control differences listed above, there are also some timing differences for the read and write cycles of each device. The TL16C754C can also encounter framing errors when receiving a stream of characters with short STOP bits.

    Best,

    Kenneth