| Company | Trenz Electronic GmbH |
|---|---|
| PCN Number | PCN-20230920 |
| Title | TE0818-01 to TE0818-02 Hardware Revision Change |
| Subject | Hardware Revision Change |
| Issue Date | 2023-11-01 |
Products Affected
This change affects all Trenz Electronic TE0818 SoMs: TE0818-01*.
Affected Product | Changes | Replacement |
|---|---|---|
| TE0818-01-6BE21-A | #1...#11 | TE0818-02-6BE81-A |
| TE0818-01-9BE21-A | #1...#11 | TE0818-02-9BE81-A |
| TE0818-01-9BE21-AZ | #1...#11 | TE0818-02-9BE81-A |
| TE0818-01-9GI21-A | #1...#11 | TE0818-02-9GI81-A |
| TE0818-01-9GI21-AK | #1...#11 | TE0818-02-9GI81-AK |
| TE0818-01-9GI21-AS | #1...#11 | TE0818-02-9GI81-AS |
| TE0818-01-BBE21-A | #1...#11 | TE0818-02-BBE81-A |
| TE0818-01-BBE21-AZ | #1...#11 | TE0818-02-BBE81-A |
| TE0818-01-BGI21-A | #1...#11 | TE0818-02-BGI81-A |
| TE0818-01-9GI81-A | #1...#11 | TE0818-02-9GI81-A |
| TE0818-01-9GI81-AK | #2...#11 | TE0818-02-9GI81-AK |
| TE0818-01-BBE81-A | #2...#11 | TE0818-02-BBE81-A |
| TE0818-01-BBE81-AK | #2...#11 | TE0818-02-BBE81-AK |
Changes
#1 Changed DDR4 SDRAM (U2, U3, U9, U12) from K4A8G165WB-BIRC to K4A8G165WC-BITDTCV.
Type: BOM change
Reason: BOM Optimization.
Impact: Memory design settings needs to be reviewed by customer.
#2 Added defaultly used external compensation network (R119, C190, C191) and option (R118) to use internal compensation for DCDCs (U18, U37).
Type: Schematic Change
Reason: Improve stability.
Impact: None. Improved stability.
#3 Added capacitors C178, C187, C188, C189 (470nF) to improve VTT net.
Type: Schematic Change
Reason: VTT decoupling improvement.
Impact: Improved VTT voltage rail reliabililty.
#4 Added diode D2 between U41 pin 3 net MR and voltage rail 3.3VIN.
Type: Schematic Change
Reason: Protect manual reset pin.
Impact: None.
#5 Enabled DDR4 test usage via connecting all DDR4 TEN pins together, pulled them down with resistor R120 and added testpoint TP23.
Type: Schematic Change
Reason: Enable DDR4 test improvement.
Impact: None.
#6 Added testpoints TP25, TP27, TP29, TP35, TP37...TP79.
Type: Schematic Change
Reason: Improve voltage measuring possibilities.
Impact: None.
#7 Changed capacitor C112 size from 0402 to 0201 and voltage rating from 16 V to 10 V.
Type: Schematic Change
Reason: BOM Optimization.
Impact: None.
#8 Changed ferrid beads from MPZ0603S121HT000 to BLM15PX800SZ1D for L1, L2, L3, L4, L5, and L7.
Type: Schematic Change
Reason: BOM Optimization.
Impact: None.
#9 Changed ferrid beads from MPZ1608S221A to BLM15PX800SZ1D for L6 and L8.
Type: Schematic Change
Reason: BOM Optimization.
Impact: None.
#10 Modified trace length.
Type: PCB Change
Reason: Changing trace length are the result of above done changes.
Impact: Check whether new trace length fits your baseboard requirements.
#11 Updated documentation overviews.
Type: Documentation Update
Reason: Documentation improvement.
Impact: None.
Method of Identification
The revision number is printed on the top side of the PCB.
Production Shipment Schedule
This change takes place with immediate effect. 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-20230920)
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.
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