LZ-1-Backplane

HynixCJR·LZ-1-Backplane·pcb_files/serverv2_backplane.kicad_pcb

This repository ships a schematic but no board layout.

About the LZ-1-Backplane PCB

LZ-1-Backplane is an open source RP2040/RP2350 PCB design by HynixCJR, published on GitHub. It is a 2-layer board, with 1344 components from 145 distinct parts.

Its main chip is the RP2354B, from the RP2040/RP2350 family. Other key parts include the 25MHz 10pF, RTL9210B-CG, MIC2545A-1YM, TPS259530DSGR and TPS259540DSGR. By type, the board carries 438 resistors, 381 capacitors, 70 ICs, 64 transistors, 57 diodes and 34 connectors.

It belongs with the power & battery designs in this gallery.

From the project

Custom backplane PCB for my 2U, 12-bay (3.5 inch) home server

This repository contains all files relevant to the LAZARUS-1 backplane PCB. The PCB supports the following features: 1. 12 x SATA HDDs/SSDs (3.5 inch, hot-swappable, 12V and 5V current monitoring/protection) 2. Internal USB-C to the laptop/desktop motherboard that provides PD 3.0 up to 100W, supports DP alt mode, as well as USB 3.2 Gen 2 data transfer to USB hub; branches off to: 1. Internal 2 x USB 3.2 Gen 2 (10Gbps) RTL9210b NVMe/SATA M.2 SSD slots 2. Internal SDXC MicroSD card slot 3. 2 x downstream USB 2.0 ports 4. MIPI CSI port; for video input to LicheeRV Nano 3. LicheeRV Nano for a…

LZ-1-Backplane bill of materials (BOM)

1344 components, 145 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
2	25MHz 10pF SST	25M_10PF_50PPM	U1, U7
2	RTL9210B-CG null	QFN-68_L8.0-W8.0-P0.40-BL-EP4.8	U2, U8
2	MIC2545A-1YM Microchip Tech	MIC2545A-1YM	U3, U9
12	TPS259530DSGR Texas Instruments	WSON-8-1EP_3x3mm_P0.5mm_EP1.2x2mm	U4, U35, U38, U41, U44, U47, U50, U53 +4
12	TPS259540DSGR Texas Instruments	WSON-8-1EP_3x3mm_P0.5mm_EP1.2x2mm	U5, U36, U39, U42, U45, U48, U51, U54 +4
12	MCP6002-I_SN Microchip Tech	MCP6002-I_SN	U6, U34, U37, U40, U43, U46, U49, U52 +4
1	TPS55288RPMR Texas Instruments	TPS55288RPMR	U10
5	USBLC6-2SC6_C5261088 HXY MOSFET	USBLC6-2SC6_C5261088	U11, U22, U31, U32, U33
2	MIC2545A-2YM-TR Microchip Tech	MIC2545A-2YM-TR	U12, U14
1	TPS65987DDHRSHR Texas Instruments	TPS65987DDHRSHR	U13
1	ESTVS2200DRVR ElecSuper	ESTVS2200DRVR	U15
1	PS176 Parade Technologies	PS176	U16
1	USB2244I-AEZG-06-TR Microchip Tech	USB2244I-AEZG-06-TR	U17
1	MCP9808T-E_MC Microchip Tech	MCP9808T-E_MC	U18
1	LX7167ACLD-TR Microchip Tech	LX7167ACLD-TR	U19
1	USB7205C-I_KDX	USB7206C-I_KDX	U20
1	25MHz SST	25M_10PF_50PPM	U21
1	MLD-TF_PUSH-H18 Minlenda	MLD-TF_PUSH-H18	U23
4	PAC1954T-E_4MX Microchip Tech	PAC1954T-E_4MX	U24, U25, U26, U27
1	TUSB1064RNQT Texas Instruments	TUSB1064RNQT	U28

Show 125 more

Qty	Part	Footprint	Refs
1	MCP1700T-3302E_TT Microchip Tech	MCP1700T-3302E_TT	U29
1	UCS2113-1-V_G4 Microchip Tech	UCS2113-1-V_G4	U30
1	LT6911UXC	QFN-64_L7.5-W7.5-P0.40-TL-EP6.2	U67
1	MCP1700T-1802E_TT Microchip Tech	MCP1700T-1802E_TT	U68
2	MCP1602-120I_MF Microchip Tech	MCP1602-120I_MF	U69, U70
2	HSBB4056 HUASHUO	HSBB4056	Q1, Q2
61	2N7002 JSMSEMI	2N7002_C916396	Q63, Q64, Q66, Q67, Q68, Q69, Q70, Q71 +53
1	EM6K7T2R ROHM Semicon	EM6K7T2R	Q65
1	24MHz TOGNJING	XTM32024000DT00351001	X5
2	XTM32027000FT00351001 27MHz 9pF	Crystal_SMD_3225-4Pin_3.2x2.5mm	Y1, Y2
12	HDGCYLSY-SATA-113 HDGC	HDGCYLSY-SATA-113	CN1, CN11, CN13, CN15, CN17, CN19, CN22, CN24 +4
12	HYCW04-SATA07-129B HOAUC	HYCW04-SATA07-129B	CN2, CN10, CN12, CN14, CN16, CN18, CN21, CN23 +4
2	W25Q128FVIQ_Connector HanElectricity	H2541FV-C762-2X04P	CN3, CN7
2	SM3ZS067U310AMR1200 JAE Electronics	2E0BC21-S85BM-7H	CN6, CN9
1	Conn_01x06	PinSocket_1x06_P2.54mm_Horizontal	J1
2	Conn_01x14	PinSocket_1x14_P2.54mm_Vertical	J2, J3
1	Conn_01x02	PinHeader_1x02_P2.54mm_Vertical_SMD_Pin1Left	J4
1	Conn_02x12_Counter_Clockwise	Molex_Mini-Fit_Jr_5566-24A_2x12_P4.20mm_Vertical	J5
1	22P_FPC JUSHUO	FPC_0_5MM_22P_Pull_type_H2_0mm_Pick_up	P1
12	0805G_Green Hubei KENTO Elec	0805G_Green	ACT_LED1, ACT_LED2, ACT_LED3, ACT_LED4, ACT_LED5, ACT_LED6, ACT_LED7, ACT_LED8 +4
3	CM4012M00010001 huaxindianzi	Crystal_SMD_2520-4Pin_2.5x2.0mm	CRYSTAL1, CRYSTAL2, CRYSTAL3
24	22nF Samsung Electro-Mechanics	C_0603_1608Metric	CdVdt1, CdVdt2, CdVdt3, CdVdt4, CdVdt5, CdVdt6, CdVdt7, CdVdt8 +16
5	10uF Samsung Electro-Mechanics	C_0603_1608Metric	Cf_1, Cf_3, Cf_5, Cf_7, Cf_9
10	100nF Samsung Electro-Mechanics	C_0402_1005Metric	Cf_2, Cf_4, Cf_6, Cf_8, Cf_10, Cf_11, Cf_12, Cf_13 +2
120	22uF Samsung Electro-Mechanics	C_1206_3216Metric	Cout_0_1, Cout_0_2, Cout_0_3, Cout_0_4, Cout_0_5, Cout_0_6, Cout_0_7, Cout_0_8 +112
1	1M	R_0402_1005Metric	DNP1
36	10k UNI-ROYAL(Uniroyal Elec)	R_0402_1005Metric	DNP2, DNP3, RFLT1, RFLT2, RFLT3, RFLT4, RFLT5, RFLT6 +28
5	47053-1000 MOLEX	47053-1000	FAN0, FAN1, FAN2, FAN3, FAN4
3	Conn_01x03	PinHeader_1x03_P2.54mm_Vertical	PI0_Debug1, PI0_Debug2, PI0_Debug3
3	RP2354B	RP2350B_C42415655	PI1, PI2, PI3
12	1k UNI-ROYAL(Uniroyal Elec)	R_0603_1608Metric	RILM1, RILM3, RILM5, RILM7, RILM9, RILM11, RILM13, RILM15 +4
12	680 UNI-ROYAL(Uniroyal Elec)	R_0603_1608Metric	RILM2, RILM4, RILM6, RILM8, RILM10, RILM12, RILM14, RILM16 +4
5	330 UNI-ROYAL(Uniroyal Elec)	R_0402_1005Metric	Rf3, Rf4, Rf7, Rf10, Rf13
1	Conn_02x06	PinSocket_2x06_P2.54mm_Vertical_SMD	TOUCH_DISP_CONN1
6	UART TX Pad	TestPoint_Pad_2.0x2.0mm	TP1, TP2, TP3, TP4, TP5, TP6
3	Reset pad	TestPoint_Pad_2.0x2.0mm	TP7, TP8, TP9
1	GT-USB-7007D G-Switch	USB_C_Receptacle_G-Switch_GT-USB-7025	USB1
2	KH-AF90DIP-112 Shenzhen Kinghelm Elec	KH-AF90DIP-112	USB4, USB5
13	White Gui guang light	GL0603UW01	LED1, LED2, LED3, LED4, LED5, LED6, LED7, LED8 +5
12	SMAJ13A	D_SMA	D1, D9, D13, D17, D21, D25, D29, D33 +4
24	SS34 MDD(Microdiode Semiconductor)	DHVQFN-20-1EP_2.5x4.5mm_P0.5mm_EP1x3mm	D2, D5, D10, D11, D14, D15, D18, D19 +16
4	TPD4E05U06 Texas Instruments	TPD4E05U06DQAR_C138714	D3, D6, D7, D52
12	SMAJ6.0A Shandong Jingdao Microelectronics	Hirose_DF40HC(3.5)-20DS-0.4V_2x10_P0.4mm	D4, D8, D12, D16, D20, D24, D28, D32 +4
5	SMBJ15A TECH PUBLIC	SMBJ15A_C42370523	D53, D54, D55, D56, D57
1	1uH Huacui Micro	PIM201608S1R0MBCA	L1
3	3.3uH Huacui Micro	PIM252010S3R3MBCA	L2, L4, L13
6	120Ω@100MHz GUDIAN	L_0805_2012Metric	L3, L18, L19, L20, L22, L23
2	1uH Huacui Micro	TerminalBlock_Phoenix_PTSM-0,5-2-2,5-V-SMD_1x02-1MP_P2.50mm_Vertical	L5, L8
4	10mΩ ±25% SOREDE	L_1206_3216Metric	L6, L7, L9, L10
2	4.7uH Huacui Micro	PIM201608S4R7MBCA	L11, L21
1	4.7uF XR	XR1265-4R7M	L12
1	330Ω@100MHz Murata Electronics	BLM18KG331SN1D	L16
24	470nF Samsung Electro-Mechanics	C_0603_1608Metric	C1, C2, C170, C172, C184, C186, C223, C225 +16
167	100nF Samsung Electro-Mechanics	C_0402_1005Metric	C1_1, C1_2, C1_3, C1_4, C1_5, C1_6, C1_7, C1_8 +159
56	10uF Chinocera	C_0603_1608Metric	C2_1, C2_2, C2_3, C2_4, C2_5, C2_6, C2_7, C2_8 +48
16	220nF Samsung Electro-Mechanics	C_0402_1005Metric	C5, C6, C32, C89, C90, C91, C92, C105 +8
13	10uF Samsung Electro-Mechanics	C_0402_1005Metric	C7, C37, C49, C99, C100, C137, C138, C143 +5
16	22uF Samsung Electro-Mechanics	C_0603_1608Metric	C8, C9, C19, C20, C33, C34, C36, C95 +8
4	16pF FH (Guangdong Fenghua Advanced Tech)	C_0402_1005Metric	C10, C17, C22, C42
20	4.7uF Samsung Electro-Mechanics	C_0402_1005Metric	C11, C23, C50, C54, C168, C237, C240, C247 +12
1	220uF ROQANG(容强)	RVT1V221M0810-C72498	C26
18	1uF Samsung Electro-Mechanics	C_0402_1005Metric	C43, C45, C129, C132, C133, C134, C136, C139 +10
6	10pF Samsung Electro-Mechanics	C_0603_1608Metric	C47, C48, C165, C175, C177, C314
8	15pF FH (Guangdong Fenghua Advanced Tech)	C_0402_1005Metric	C51, C65, C66, C81, C82, C83, C199, C214
6	47uF Samsung Electro-Mechanics	C_1206_3216Metric	C68, C69, C71, C72, C213, C220
5	10nF CCTC	C_0402_1005Metric	C84, C85, C87, C88, C117
4	10uF Samsung Electro-Mechanics	C_0805_2012Metric	C86, C125, C126, C196
4	470nF CCTC	C_0402_1005Metric	C101, C102, C103, C104
2	220pF FH (Guangdong Fenghua Advanced Tech)	C_0402_1005Metric	C109, C110
1	4.7nF CCTC	C_0402_1005Metric	C118
1	4.7uF Samsung Electro-Mechanics	C_0805_2012Metric	C121
2	1uF Samsung Electro-Mechanics	C_0603_1608Metric	C123, C207
1	100pF CCTC	C_0402_1005Metric	C127
1	68uF KNSCHA(科尼盛)	DHG100M686G150S1AA	C131
1	27pF CCTC	C_0402_1005Metric	C156
2	2.2uF Taiyo Yuden	C_0402_1005Metric	C166, C189
2	4.7uF Samsung Electro-Mechanics	C_0603_1608Metric	C209, C210
137	10k UNI-ROYAL(Uniroyal Elec)	R_0402_1005Metric	R1, R4, R10, R18, R19, R20, R21, R23 +129
14	2k UNI-ROYAL(Uniroyal Elec)	R_0603_1608Metric	R1_1, R1_5, R1_8, R1_11, R1_14, R1_17, R1_20, R1_23 +6
12	68k UNI-ROYAL(Uniroyal Elec)	R_0603_1608Metric	R1_2, R1_4, R1_7, R1_10, R1_13, R1_16, R1_19, R1_22 +4
12	220k UNI-ROYAL(Uniroyal Elec)	R_0603_1608Metric	R1_3, R1_6, R1_9, R1_12, R1_15, R1_18, R1_21, R1_24 +4
24	10 UNI-ROYAL(Uniroyal Elec)	R_0402_1005Metric	R2, R6, R117, R120, R133, R181, R236, R239 +16
24	24k UNI-ROYAL(Uniroyal Elec)	R_0603_1608Metric	R2_1, R2_2, R2_3, R2_4, R2_5, R2_6, R2_7, R2_8 +16
12	300 UNI-ROYAL(Uniroyal Elec)	R_0603_1608Metric	R3, R123, R226, R242, R258, R274, R294, R310 +4
19	1k UNI-ROYAL(Uniroyal Elec)	R_0402_1005Metric	R5, R47, R48, R49, R92, R95, R97, R110 +11
24	30k UNI-ROYAL(Uniroyal Elec)	R_0603_1608Metric	R7, R9, R114, R122, R130, R225, R233, R241 +16
27	330 UNI-ROYAL(Uniroyal Elec)	R_0402_1005Metric	R8, R26, R27, R45, R46, R124, R125, R199 +19
5	5.1k UNI-ROYAL(Uniroyal Elec)	R_0402_1005Metric	R11, R13, R32, R34, R94
10	4.7k UNI-ROYAL(Uniroyal Elec)	R_0402_1005Metric	R12, R14, R33, R35, R96, R101, R102, R103 +2
4	76.8 FH	R_0402_1005Metric	R15, R16, R36, R37
3	12k Ever Ohms Tech	R_0402_1005Metric	R17, R38, R135
26	120k HWA CHN	R_0402_1005Metric	R22, R68, R69, R70, R73, R79, R104, R105 +18
3	2k SAE	R_0402_1005Metric	R29, R30, R66
1	7.68k CHANGLONG	R_0402_1005Metric	R40
26	100k UNI-ROYAL(Uniroyal Elec)	R_0402_1005Metric	R42, R57, R63, R64, R65, R75, R99, R100 +18
3	33 UNI-ROYAL(Uniroyal Elec)	R_0402_1005Metric	R44, R276, R312
1	110k HWA CHN	R_0402_1005Metric	R50
4	1M UNI-ROYAL(Uniroyal Elec)	R_0402_1005Metric	R62, R139, R187, R188
1	28k CHANGLONG	R_0402_1005Metric	R67
2	20k SAE	R_0402_1005Metric	R72, R80
1	0 UNI-ROYAL(Uniroyal Elec)	R_0402_1005Metric	R74
1	220k UNI-ROYAL(Uniroyal Elec)	R_0402_1005Metric	R76
1	10mΩ Walter Elec	R_1206_3216Metric	R77
1	56.2k LIZ Elec	R_0402_1005Metric	R78
5	200mΩ ±1% TA-I Tech	RL12FTNR200	R81, R82, R159, R160, R162
9	49.9k TA-I Tech	R_0402_1005Metric	R83, R84, R88, R89, R90, R91, R146, R147 +1
2	1.0 Walsin Tech Corp	R_0402_1005Metric	R86, R87
1	2Ω ±1% FOJAN	R_1206_3216Metric	R140
1	5mΩ ±5% PSA	R_1206_3216Metric	R142
1	90mΩ ±1% JIERR	R_2512_6332Metric	R145
2	510mΩ ±5% FH	R_1210_3225Metric	R152, R153
1	499 CHANGLONG	R_0402_1005Metric	R158
1	330mΩ ±1% FH (Guangdong Fenghua Advanced Tech)	R_2512_6332Metric	R161
2	100mΩ ±1% jieerrui	R_2512_6332Metric	R163, R164
1	20mΩ ±1% TA-I Tech	R_0603_1608Metric	R165
1	2.5mΩ ±1% jieerrui	R_2512_6332Metric	R166
1	806 LIZ Elec	R_0402_1005Metric	R169
1	68mΩ ±1% Yohey	R_1206_3216Metric	R170
2	2M UNI-ROYAL(Uniroyal Elec)	R_0603_1608Metric	R185, R186
1	3.48 FH (Guangdong Fenghua Advanced Tech)	R_0603_1608Metric	R194
1	33k Walsin Tech Corp	R_0402_1005Metric	R197
3	200k FH(风华)	R_0402_1005Metric	R202, R344, R352
1	12k±1% Ever Ohms Tech	R_0402_1005Metric	R217
1	10.0Ω UNI-ROYAL(Uniroyal Elec)	R_0402_1005Metric	R328
2	10.0 UNI-ROYAL(Uniroyal Elec)	R_0402_1005Metric	R387, R388

LZ-1-Backplane design files

The KiCad project lives in the HynixCJR/LZ-1-Backplane repository on GitHub; these links point at the commit this page was built from.

LZ-1-Backplane: common questions

What microcontroller does the LZ-1-Backplane use?

The LZ-1-Backplane is built around the RP2354B, from the RP2040/RP2350 family.

How big is the LZ-1-Backplane PCB?

The LZ-1-Backplane has 2 copper layers and is 1.6 mm thick.

How many components are on the LZ-1-Backplane?

1344 components, from 145 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the LZ-1-Backplane design files?

From the HynixCJR/LZ-1-Backplane repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the LZ-1-Backplane design in my own project?

The repository has no license, so all rights stay with HynixCJR. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the LZ-1-Backplane without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.