SLAA666A March   2015  – January 2020 MSP430F6720 , MSP430F6720A , MSP430F6721 , MSP430F6721A , MSP430F6723 , MSP430F6723A , MSP430F6724 , MSP430F6724A , MSP430F6725 , MSP430F6725A , MSP430F6726 , MSP430F6726A , MSP430F6730 , MSP430F6730A , MSP430F6731 , MSP430F6731A , MSP430F6733 , MSP430F6733A , MSP430F6734 , MSP430F6734A , MSP430F6735 , MSP430F6735A , MSP430F6736 , MSP430F6736A , MSP430F6745 , MSP430F67451 , MSP430F67451A , MSP430F6745A , MSP430F6746 , MSP430F67461 , MSP430F67461A , MSP430F6746A , MSP430F6747 , MSP430F67471 , MSP430F67471A , MSP430F6747A , MSP430F6748 , MSP430F67481 , MSP430F67481A , MSP430F6748A , MSP430F6749 , MSP430F67491 , MSP430F67491A , MSP430F6749A , MSP430F6765 , MSP430F67651 , MSP430F67651A , MSP430F6765A , MSP430F6766 , MSP430F67661 , MSP430F67661A , MSP430F6766A , MSP430F6767 , MSP430F67671 , MSP430F67671A , MSP430F6767A , MSP430F6768 , MSP430F67681 , MSP430F67681A , MSP430F6768A , MSP430F6769 , MSP430F67691 , MSP430F67691A , MSP430F6769A , MSP430F6775 , MSP430F67751 , MSP430F67751A , MSP430F6775A , MSP430F6776 , MSP430F67761 , MSP430F67761A , MSP430F6776A , MSP430F6777 , MSP430F67771 , MSP430F67771A , MSP430F6777A , MSP430F6778 , MSP430F67781 , MSP430F67781A , MSP430F6778A , MSP430F6779 , MSP430F67791 , MSP430F67791A , MSP430F6779A

 

  1.   Differences Between MSP430F67xx and MSP430F67xxA Devices
    1.     Trademarks
    2. 1 Introduction
    3. 2 Fixed Errata
    4. 3 Addition of RTCLOCK Feature
    5. 4 ESD Robustness
    6. 5 Migration From the Non-A MSP430F67xx Devices to the MSP430F67xxA Devices
    7. 6 Metrology Results
  2.   Revision History

1 Introduction

The MSP430F67xxA devices are the latest e-meter SoCs from Texas Instruments for 1-phase and 3-phase meters. These devices offer enhancements from the previous non-A MSP430F67xx e-meter SoCs while still maintaining all of the features of the non-A chips so that a non-A device can be replaced with the corresponding A version of that chip. As an example, this would allow a MSP430F6736-based design to be upgraded by swapping its MSP430F6736 with a MSP430F6736A. This can be done for all of the F67xxA chips, which are all mentioned below:

  • MSP430F672xA and MSP430F673xA single-phase metering SoCs
  • MSP430F676x1A low-cost poly-phase metering SoCs
  • MSP430F677xA, MSP430F676xA, MSP430F674xA, MSP430F677x1A, MSP430F676x1A, and MSP430F674x1A high-accuracy poly-phase metering SoCs

Note that the "A" in the MSP430F67xxA devices is listed on a chip as a part of the part number and is independent of the letter listed as the silicon revision number. For example, a non-A device may be labeled on the chip as being "Rev A" but is still considered a non-A device. Similarly, a MSP430F67xxA device may say "Rev B" but is still a MSP430F67xxA chip. Care must be taken not to confuse the revision letter on the chip with being a part of the chip part number.

Also, when comparing the MSP430F67xx non-A devices to the MSP430F67xxA devices, the following changes were made onto the MSP430F67xxA:

  • Errata AUXPMM1 and RTC8 have been fixed.
  • An RTCLOCK feature has been added to the RTC.
  • A modification was made to better address ESD robustness.