September 30, 2013
Subject: PCN#10A-13 Notification of Changes to the MachXO2 Family Data Sheet
Dear Lattice Customer,
Lattice is providing this notification of changes to the MachXO2™ Family Data Sheet.
Change Description
The updated MachXO2 Family Data Sheet (DS1035 Version 02.2, released in September 2013)
removes clock stretching feature from Hardened I2C IP Core section. Designs that do not use the
hardened I2C core in User Slave mode are not affected by this PCN. Those customers using the
hardened I2C core in User Slave mode on their MachXO2 devices should contact local field support
immediately for instructions on next steps.
Affected Products
The Ordering Part Numbers (OPNs) affected by this PCN are available here. This PCN also affects
any custom devices (i.e. factory programmed, special test, etc.), which are derived from any of the
devices listed in the table.
Datasheet Specifications
The revised MachXO2 Family Data Sheet (DS1035 Version 02.2, released in September 2013) reflects
the change described above and available on the Lattice website.
Software Support
Lattice Diamond™ Software Version 3.1 (planned to be released in December 2013) will disable clock
stretching feature as a default.
PCN Timing
This datasheet change is effective immediately and retroactively.
Response
Those customers using the hardened I2C core in User Slave mode on their MachXO2 devices should
contact local field support immediately for instructions on next steps.
Lattice Semiconductor Home Page: http://www.latticesemi.com
Applications & Literature Hotline: 1-800-LATTICE
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