| Company | Trenz Electronic GmbH |
|---|---|
| PCN Number | PCN-20260217 |
| Title | TEM0001-01 to TEM0001-02 Hardware Revision Change |
| Subject | Hardware Revision Change |
| Issue Date | 2026-02-18 |
Products Affected
This change affects all Trenz Electronic TEM0001 SoMs: TEM0001-01*.
Affected Product | Replacement |
|---|---|
| TEM0001-01A-ABC-2 | TEM0001-02-ABC42-A |
Changes
#1 Changed DCDC EP53A7HQI (U8, U10) to MPM3834CGPA-Z, adapted power circuit and changed power on sequence from starting both DCDCs together to start at first DCDC U10 and then DCDC U8.
Type: Schematic Change
Reason: EOL of Component.
Impact: None. Minor changes in electrical characteristics.
#2 Changed SDRAM (U2) from W9864G6JT-6 to W9864G6KT-6 and adapted power decoupling circuit.
Type: BOM change
Reason: EOL of component.
Impact: None. New DDR timings may be considered in designs. SDRAM setup used in Trenz reference designs is known to work still.
#3 Changed MEMS oscillator (U7) from DSC6011ME2B-012.0000T to SiT8008BI-73-XXS-12.000000E.
Type: PCB Change
Reason: BOM optimization.
Impact: Reduced frequency stability from ±25 ppm to ±50 ppm. Increased temperature range from -20 °C -70 °C to -40 °C - 85 °C. Minor changes in electrical characteristics.
#4 Changed USB 2.0 Micro-B receptacle 105017-0001 (J9) to 629105150521.
Type: Schematic Change
Reason: Product improvement.
Impact: None. Minor changes in mechanical characteristics.
#5 Added USB filter (L4) for FTDI USB signals.
Type: Schematic Change
Reason: Improve signal integrity.
Impact: None. Minor changes in electrical characteristics.
#6 Added ESD protection diode (D11) for USB.
Type: Schematic Change
Reason: ESD Protection.
Impact: None. Added ESD protection.
#7 Added M2S025 compatibility.
- Added PLL filter assembly option (R43, R44, C50 ... C53) (default: not assembled).
- Changed capacitor (C10) from 470 nF to 100 nF.
- Changed capacitor (C36) from 4.7 µF to 22 µF.
Type: Schematic Change
Reason: Add compatibility with M2S025 and follow Microchip recommendation AC393 figure 1-1.
Impact: None. Minor changes in electrical characteristics.
#8 Added pull-down resistor (R45) for signal JTAG TCK.
Type: Schematic Change
Reason: Improve signal integrity. Follow Microchip recommendation AC393 table 1-14.
Impact: None. Minor changes in electrical characteristics.
#9 Added external pull-up resistor (R20) and debounce capacitor (C48) for button (S2).
Type: Schematic Change
Reason: Improve signal integrity.
Impact: None. Minor changes in electrical characteristics.
#10 Added pull-up resistor (R36, R37, R38) for SPI signal (F_CS [CS#], F_D2 [WP#], F_D3 [HOLD#]) for flash (U1).
Type: Schematic Change
Reason: Implement proper initial conditions regardless on the state of FPGA and used flash.
Impact: None. Minor changes in electrical characteristics.
#11 Added ferrite bead (L3).
Type: Schematic Change
Reason: Improve signal integrity.
Impact: None. Minor changes in electrical characteristics.
#12 Added additional decoupling capacitor (C49, C65 ... C97).
Type: Schematic Change
Reason: Improve power supply rail integrity.
Impact: None. Minor changes in electrical characteristics.
#13 Changed capacitor (C24, C25) from 27 pF to 18 pF.
Type: Schematic Change
Reason: BOM optimization.
Impact: None. Minor changes in electrical characteristics.
#14 Changed 100 nF capacitor (C7) from 25 V, 0402 to 6.3 V, 0201.
Type: Schematic Change
Reason: BOM optimization.
Impact: None. Minor changes in electrical characteristics.
#15 Changed capacitor (C37) from 4.7 µF, 0402 to 47 µF, 0603.
Type: Schematic Change
Reason: Improve power supply rail integrity.
Impact: None. Minor changes in electrical characteristics.
#16 Changed capacitor (C13) from 10 µF, 0805 to 22 µF, 0603.
Type: Schematic Change
Reason: BOM optimization.
Impact: None. Minor changes in electrical characteristics.
#17 Added test point (TP1 ... TP6).
Type: Schematic Change
Reason: Voltage monitoring improvement.
Impact: None.
#18 Added RoHS logo.
Type: PCB Change
Reason: Improve product classification identification.
Impact: None.
Method of Identification
The revision number is shown on the bottom 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-20260217)
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