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| Company | Trenz Electronic GmbH |
|---|---|
| PCN Number | PCN-20220228 |
| Title | TE0720-03 to TE0720-04 Hardware Revision Change |
| Subject | Hardware Revision Change |
| Issue Date | 2022-03-11 |
This change affects all Trenz Electronic TE0720 SoMs of revision 03.
Affected Product | Replacement |
|---|---|
| TE0720-03-* | TE0720-04-* |
Type: Schematic Change
Reason: Enpirion DCDCs are discontinued.
Impact: None.
Type: Schematic Change
Reason: Enpirion DCDCs are discontinued.
Impact: None. Maximum continuous output current of DCDC increased from 1.5 A to 3 A on each rail.
Type: Schematic Change
Reason: Supply chain optimization.
Impact: None.
Type: Schematic Change
Reason: Ferrite bead are discontinued.
Impact: None.
Type: Schematic Change
Reason: DCDC change.
Impact: None. Designator changed.
Type: Schematic Change
Reason: Set reset threshold for U26 to 0.904 V.
Impact: None, improved reset behaviour.
Type: Schematic Change
Reason: Improved voltage rail supervision.
Impact: None. All power rails are now monitored.
Type: Schematic Change
Reason: Power Supervisor connection.
Impact: None. If custom CPLD design used, check for compatibility.
Type: Schematic Change
Reason: WatchDog connected for possible future use to CPLD.
Impact: None. WatchDog connected for custom use to CPLD. If custom CPLD design used, check for compatibility.
Type: Schematic Change
Reason: Enable boundary scan for MIO bank 1.
Impact: None. If custom CPLD design used, check for compatibility.
Type: Schematic Change
Reason: Default pull-down option to avoid floating states.
Impact: None.
Type: Schematic Change
Reason: Default pull-down option to avoid floating states.
Impact: None.
Type: Schematic Change
Reason: Avoid high-signal-state at U26 manual reset pin 3 without powered supervisor.
Impact: None.
Type: Schematic Change
Reason: Avoid voltage high-signal-state at U26 manual reset pin 3 without powered supervisor.
Impact: None.
Type: PCB Change
Reason: DCDCs with new footprints needs to be used.
Impact: None.
Type: PCB Change
Reason: Improve optional cooling solution.
Impact: None.
Type: PCB Change
Reason: Improve decoupling for "1V" voltage rail.
Impact: None.
Type: PCB Change
Reason: Result of this PCN changes.
Impact: The length of the tracks has been changed. Pinout of Samtec B2B connectors is not affected. Changed trace length has to be taken into account in existing designs. The trace length for new revision are added to the 4x5 series pinout generator. Please, check if change in trace length still matches your requirements. Adaption of carrier may be necessary.
Type: DOC Change
Reason: Documentation optimization.
Impact: None. B2B information, legal notices, change history, system overview, power diagram and power page are inserted or changed. Schematic page number changes.
The model code and revision number of the module "TE0720-04" are printed on the top side of the PCB for revision 04.
The new revision 04 will be shipped from October 2022. If the new revision is not suitable for your application and still the former revision of the board is needed, please contact us.
If you have any questions related to this PCN, please contact Trenz Electronics Technical Support at
phone
national calls: 05741 3200-0
international calls: 0049 5741 3200-0
Any projected dates in this PCN are based on the most current product information at the time this PCN is being issued, but they may change due to unforeseen circumstances. For the latest schedule and any other information, please contact your local Trenz Electronic sales office, technical support or local distributor.
This PCN follows JEDEC Standard J-STD-046.