| Company | Trenz Electronic GmbH |
|---|---|
| PCN Number | PCN-20220228 |
| Title | PCN-20220228 TE0720-03 Hardware Revision Change |
| Subject | Hardware Revision Change |
| Issue Date | JJJJMMDD |
Products Affected
This change affects all Trenz Electronic TE0720 SoMs: TE0720-03*.
Affected Product | Replacement |
|---|---|
| TE0720-03 | TE0720-04 |
Changes
#1 Revised power supply circuit: replaced obsolete parts U1, U2, U3, Q1
Type: PCB Change
Reason: Components are obsolete
Impact: None.
#2 Added power supervisor BD39040MUF (U27) Next signal connected to system controller:
- PG_All (U27 - U19.C12) with pull-up resistor R67;
- WDEN (U27.13 - U19.C6) with pull-down resistor R80;
- WDIN (U27.14 - U19.N8);
- WDOUT (U27.16 - U19.M3).
Type: PCB Change
Reason: Voltage rail supervision.
Impact: None.
#3 Signal MIO8 (U5.E5) connected to system controller (U19.N7)
Type: PCB Change
Reason: ???
Impact: ???
#4 Added pull-down resistors R64 (net ON_1V0) and R65 (net ON_1V8)
Type: PCB Change
Reason: Default pull-down option to delete the floating state
Impact: None.
#5 Revised voltage supervisor U26 circuit: U26.6 (VDD) connected to 3.3VIN, added diode D3
Type: PCB Change
Reason: Improve supervisor circuit
Impact: None.
#6 Power supervisor U26 connected to 3.3VIN power rail (was 3.3V). Added protection diode D3 to U26.3 (#MR input)
Type: PCB Change
Reason: Improve supervisor circuit
Impact: None.
#7 Auxiliary information has been added on Samtec B2B connectors page
Type: DOC Change
Reason: Improve conncector documentation
Impact: None.
#8 PCB: Revised layout of power supplies
Type: PCB Change
Reason: DCDCs with new footprints needs to be used
Impact: None.
#9 PCB: Revised layout of Samtec B2B signals. The length of the tracks has been changed. Pinout of Samtec B2B connectors not affected
Type: PCB Change
Reason: ???
Impact: The new trace length needs to be considered for length matched busses.
#10 PCB: Added option to install Heatsink SuperGrip (c)
Type: PCB Change
Reason: Allows heatsink usage
Impact: None.
#11 Added capacitors C7, C8 (100uF, 1V)
Type: PCB Change
Reason: Improve decoupling for "1V" voltage rail
Impact: None.
Method of Identification
The model code and revision number of the module (e.g. TE0720-03 or TE0720-04) are printed on the top side of the PCB.
Production Shipment Schedule
TE0720-04 could be ordered from now on. If the new revision is not suitable for your application and still the former revision of the board is needed, please contact us.
Contact Information
If you have any questions related to this PCN, please contact Trenz Electronics Technical Support at
- forum.trenz-electronic.de
- wiki.trenz-electronic.de
- support%trenz-electronic.de (subject = PCN-20220228)
phone
national calls: 05741 3200-0
international calls: 0049 5741 3200-0
Disclaimer
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.
Overview
Content Tools