Custom Carrier Board Design
1:38
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Analyzing connector requirements.
Clarifying power needs and pinouts.
Defining pinouts and converter requirements.
Using Knowledge Base Tool.
Defining communication protocols and needs.
Below is a suggested breakdown of JST-GH headers and buck-converter sizing for your CM5 carrier board.
1. JST-GH Connector Assignments
| Protocol | Signals | Header Pins(incl. VCC & GND) | JST-GH Connector |
|---|---|---|---|
| I²C | SDA, SCL | 4 | JST GH 4-pin Connector |
| SPI | MOSI, MISO, SCLK, CS0 | 6 | JST GH 6-pin Connector |
| UART | TX, RX | 4 | JST GH 4-pin Connector |
| USB 2.0 | D+, D– | 4 | JST GH 4-pin Connector |
| GPIO Bank | 8 GPIO | 10 | JST GH 10-pin Connector |
| MIPI DSI | 30 lanes/signals | 30 | JST GH 30-pin Connector |
| Main Power | +5 V, GND | 2 | JST GH 2-pin Connector |
Total breakout pins: 4 + 6 + 4 + 4 + 10 + 30 + 2 = 60 pins
2. Buck-Converter Sizing
- Required output current: 2 A continuous
- Recommended rating: ≥3 A (to allow ≈50 % headroom)
- Topology: Synchronous buck (better efficiency, lower ripple)
Based on Flux knowledge-base guidance for “designing buck converter”:
- Include a switching regulator IC, an inductor, and input/output capacitors.
- Inductor: Isat ≥1.2× peak load (≥3.6 A), minimal DCR, ripple 20–40 % full-load.
- Output caps: Low-ESR ceramics + bulk; V-rating ≥1.5×5 V; size COUT so that
ΔV = ΔI·ESR + ΔI/(8·fSW·COUT).
Example part suggestions:
- Regulator: MP2459 (5 V, 3 A)
- Inductor: 10 µH Inductor
- Output capacitor: 100 µF Capacitor
Let me know if you’d like to drill into specific regulator ICs, header orientations (vertical vs. right-angle), or detailed schematic placement.
147 days
ok also add in the nvme ssd slot on the backside of the same pcb board which connects to the raspberry pi 5 compute module
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147 days
1:37
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Library
Considering NVMe SSD integration.
Planning PCIe integration.
Using Knowledge Base Tool.
Starting 1 component search
Dispatching Library tool to find: "M.2 Key M connector"
Creating search plan for: "M.2 Key M connector"
Searching: "Looking for a board-mounted connector that complies with the M.2 Key M specification. This connector is designed for high-speed PCIe/NVMe applications typically found in SSD modules or wireless cards, with proper mechanical keying to ensure secure insertion and alignment."
Searching: "Searching for a board-to-board connector that meets M.2 Key M standards, suitable for integrating high-performance NVMe storage or networking modules. Focus on connectors that offer robust mechanical retention, low profile, and correct electrical alignment for PCIe lanes."
Searching: "Seeking a specialized connector for NVMe applications with M.2 M-keying. Requirements include high-speed data transfer capability, precise physical form factor and secure locking mechanism, suitable for use in modern laptops or embedded systems requiring PCIe connectivity."
Searching: "Looking for an edge-mounted connector featuring the M.2 Key M interface. Ideal for designing systems where the connector is integrated along the board edge, ensuring correct alignment for M.2 SSDs or other PCIe devices, with emphasis on durability and reliable contact performance."
Found 54 results.
Searching: "M.2 Key M connector"
Completed 1 component search.
Checking if I can make the changes for you.
Adding NVMe SSD slot.
Here are the components to add for the NVMe SSD slot:
Table
| Part Name | Purpose | Manufacturer Part Number | Quantity | Footprint | Datasheet |
|---|---|---|---|---|---|
| M-Key M.2 SSD Slot | Provides the NVMe SSD interface, routing the CM5’s PCIe lane | 123A-40M00 | 1 | — | ___ |
Shall I go ahead and add this component to your design?
147 days
Ready.
CM4_3.3V(OUTPUT)
PCIE_CLK_~REQ
SD_DAT7
GND__46
MIPI0_D2_N
~RPIBOOT
USB3_1_TX_P
GPIO8
GND__27
SD_CMD
GPIO18
GND__49
SD_PWR_ON
ID_SD
GND__12
MIPI0_C_N
MIPI1_D0_N
GPIO16
BT_~DISABLE
GND__35
HDMI1_HOTPLUG
CAM_GPIO0
HDMI1_CEC
HDMI0_CLK_N
GPIO_VREF
HDMI1_CLK_N
+5V(INPUT)__1
GND__11
GPIO2
HDMI1_TX1_P
MIPI1_C_P
GND__18
GPIO6
GPIO9
USB3_0_TX_P
ETHERNET_PAIR1_N
HDMI0_HOTPLUG
USB3_0_RX_N
ETHERNET_PAIR2_P
MIPI0_D3_N
ETHERNET_PAIR1_P
GPIO26
USB3_1_TX_N
USB3_0_DM
GND__34
CC1
GPIO19
GND__45
HDMI1_TX0_N
GND__26
GND__6
GND__9
ETHERNET_PAIR0_P
CM4_3.3V(OUTPUT)__1
PCIE_RX_N
GND__20
HDMI1_CLK_P
PCIE_CLK_N
+5V(INPUT)__5
GND__7
SD_CLK
WL_~DISABLE
HDMI0_TX0_N
GND__22
MIPI1_D2_P
GND__43
GPIO17
CM4_1.8V(OUTPUT)__1
ETHERNET_~LED3
CM4_1.8V(OUTPUT)
GPIO23
GND__19
VBUS_EN
PMIC_ENABLE
GND__2
PCIE_TX_P
USB_OTG_ID
GND__40
USB3_1_RX_N
MIPI1_D2_N
GND__1
MIPI1_C_N
GND__10
GND__48
POWERBUTTON
+5V(INPUT)__3
SD_DAT5
ETHERNET_PAIR0_N
GND__21
GND__17
+5V(INPUT)__4
+5V(INPUT)
GND
SD_DAT1
USB3_1_DP
GPIO4
HDMI1_TX2_P
GND__30
HDMI0_CLK_P
GND__14
FAN_TACHO
USB_N
GND__16
MIPI0_C_P
GND__29
HDMI0_TX0_P
USB3_1_DM
GND__39
GND__47
CAMERA_GPIO0
GND__38
GPIO20
SCL0
MIPI1_D3_N
GND__15
HDMI0_SCL
HDMI1_TX2_N
GND__23
GND__13
GPIO12
GPIO11
GPIO22
FAN_PWM
ETHERNET_~LED2
HDMI1_TX1_N
GPIO3
GPIO15
GND__31
USB_P
VBAT
GPIO24
HDMI0_TX2_N
GPIO10
+5V(INPUT)__2
GND__5
MIPI0_D1_P
PI_LED_~PWR
GND__42
MIPI0_D2_P
ETHERNET_PAIR3_N
GND__33
GND__3
USB3_0_RX_P
HDMI0_SDA
PCIE_RX_P
GPIO21
ETHERNET_PAIR2_N
HDMI0_CEC
GND__28
PCIE_TX_N
SD_VDD_OVERRIDE
GND__4
MIPI0_D3_P
SD_DAT0
MIPI1_D1_N
SD_DAT4
GPIO7
GPIO13
GND__50
GND__41
USB3_0_TX_N
GPIO14
PCIE_PWR_EN
GND__37
GPIO25
GND__36
HDMI0_TX1_P
MIPI0_D0_N
SD_DAT6
GND__24
SDA0
GND__32
GPIO27
MIPI1_D1_P
MIPI1_D3_P
MIPI0_D0_P
ETHERNET_PAIR3_P
GPIO5
PCIE_~RST
HDMI0_TX2_P
HDMI0_TX1_N
USB3_1_RX_P
ID_SC
HDMI1_SDA
SD_DAT2
EEPROM_~WP
HDMI1_TX0_P
SD_DAT3
ETHERNET_SYNC_OUT
PI_~LED~_ACTIVITY
USB3_0_DP
MIPI0_D1_N
CC2
PCIE_CLK_P
GND__44
MIPI1_D0_P
GND__25
PCIE_nWAKE
HDMI1_SCL
GND__8
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Learn moreCapacitor Voltage Rating
BetaChecks that capacitors have appropriate voltage ratings to prevent overheating and ensure reliable circuit operation.
- Wirelessly connects nets on schematic. Used to organize schematics and separate functional blocks. To wirelessly connect net portals, give them same designator. #portaljharwinbarrozo43.0M
- Wirelessly connects power nets on schematic. Identical to the net portal, but with a power symbol. Used to organize schematics and separate functional blocks. To wirelessly connect power net portals, give them the same designator. #portal #powerjharwinbarrozo11.4M
- A generic fixed resistor for rapid developing circuit topology. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard resistor values: 1.0Ω 10Ω 100Ω 1.0kΩ 10kΩ 100kΩ 1.0MΩ 1.1Ω 11Ω 110Ω 1.1kΩ 11kΩ 110kΩ 1.1MΩ 1.2Ω 12Ω 120Ω 1.2kΩ 12kΩ 120kΩ 1.2MΩ 1.3Ω 13Ω 130Ω 1.3kΩ 13kΩ 130kΩ 1.3MΩ 1.5Ω 15Ω 150Ω 1.5kΩ 15kΩ 150kΩ 1.5MΩ 1.6Ω 16Ω 160Ω 1.6kΩ 16kΩ 160kΩ 1.6MΩ 1.8Ω 18Ω 180Ω 1.8KΩ 18kΩ 180kΩ 1.8MΩ 2.0Ω 20Ω 200Ω 2.0kΩ 20kΩ 200kΩ 2.0MΩ 2.2Ω 22Ω 220Ω 2.2kΩ 22kΩ 220kΩ 2.2MΩ 2.4Ω 24Ω 240Ω 2.4kΩ 24kΩ 240kΩ 2.4MΩ 2.7Ω 27Ω 270Ω 2.7kΩ 27kΩ 270kΩ 2.7MΩ 3.0Ω 30Ω 300Ω 3.0KΩ 30KΩ 300KΩ 3.0MΩ 3.3Ω 33Ω 330Ω 3.3kΩ 33kΩ 330kΩ 3.3MΩ 3.6Ω 36Ω 360Ω 3.6kΩ 36kΩ 360kΩ 3.6MΩ 3.9Ω 39Ω 390Ω 3.9kΩ 39kΩ 390kΩ 3.9MΩ 4.3Ω 43Ω 430Ω 4.3kΩ 43KΩ 430KΩ 4.3MΩ 4.7Ω 47Ω 470Ω 4.7kΩ 47kΩ 470kΩ 4.7MΩ 5.1Ω 51Ω 510Ω 5.1kΩ 51kΩ 510kΩ 5.1MΩ 5.6Ω 56Ω 560Ω 5.6kΩ 56kΩ 560kΩ 5.6MΩ 6.2Ω 62Ω 620Ω 6.2kΩ 62KΩ 620KΩ 6.2MΩ 6.8Ω 68Ω 680Ω 6.8kΩ 68kΩ 680kΩ 6.8MΩ 7.5Ω 75Ω 750Ω 7.5kΩ 75kΩ 750kΩ 7.5MΩ 8.2Ω 82Ω 820Ω 8.2kΩ 82kΩ 820kΩ 8.2MΩ 9.1Ω 91Ω 910Ω 9.1kΩ 91kΩ 910kΩ 9.1MΩ #generics #CommonPartsLibraryjharwinbarrozo1.5M
- A generic fixed capacitor ideal for rapid circuit topology development. You can choose between polarized and non-polarized types, its symbol and the footprint will automatically adapt based on your selection. Supported options include standard SMD sizes for ceramic capacitors (e.g., 0402, 0603, 0805), SMD sizes for aluminum electrolytic capacitors, and through-hole footprints for polarized capacitors. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard capacitor values: 1.0pF 10pF 100pF 1000pF 0.01uF 0.1uF 1.0uF 10uF 100uF 1000uF 10,000uF 1.1pF 11pF 110pF 1100pF 1.2pF 12pF 120pF 1200pF 1.3pF 13pF 130pF 1300pF 1.5pF 15pF 150pF 1500pF 0.015uF 0.15uF 1.5uF 15uF 150uF 1500uF 1.6pF 16pF 160pF 1600pF 1.8pF 18pF 180pF 1800pF 2.0pF 20pF 200pF 2000pF 2.2pF 22pF 20pF 2200pF 0.022uF 0.22uF 2.2uF 22uF 220uF 2200uF 2.4pF 24pF 240pF 2400pF 2.7pF 27pF 270pF 2700pF 3.0pF 30pF 300pF 3000pF 3.3pF 33pF 330pF 3300pF 0.033uF 0.33uF 3.3uF 33uF 330uF 3300uF 3.6pF 36pF 360pF 3600pF 3.9pF 39pF 390pF 3900pF 4.3pF 43pF 430pF 4300pF 4.7pF 47pF 470pF 4700pF 0.047uF 0.47uF 4.7uF 47uF 470uF 4700uF 5.1pF 51pF 510pF 5100pF 5.6pF 56pF 560pF 5600pF 6.2pF 62pF 620pF 6200pF 6.8pF 68pF 680pF 6800pF 0.068uF 0.68uF 6.8uF 68uF 680uF 6800uF 7.5pF 75pF 750pF 7500pF 8.2pF 82pF 820pF 8200pF 9.1pF 91pF 910pF 9100pF #generics #CommonPartsLibraryjharwinbarrozo1.5M
- A generic fixed inductor for rapid developing circuit topology. *You can now change the footprint and 3D model at the top level anytime you want. This is the power of #genericsjharwinbarrozo15.1k
- An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.Terminal
- 47 kOhms ±5% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film #forLedBlinkjharwinbarrozo1.2M
- 10uF Capacitor Aluminum Polymer 20% 16V SMD 5x5.3mm #forLedBlink #commonpartslibrary #capacitor #aluminumpolymer #radialcanjharwinbarrozo1.2M
- Yellow 595nm LED Indication - Discrete 1.7V 1206 (3216 Metric) #forLedBlinkjharwinbarrozo1.1M
Inspect
Raspberry Pi Compute Module 5 wwRk
Controls
Properties
Part Type
Compute Module
Manufacturer Part Number
Raspberry Pi Compute 5
Manufacturer Name
Designator Prefix
U
Symbol Style
Parametric
Availability & Pricing
No results found.
Assets
- CM5liteR5-3dstep.step
id=CM5liteR5-3dstep
- Raspberry Pi Compute Module 5 image.png
id=Raspberry Pi Compute Module 5 image
- Compute4.png
id=Compute4
- MODULE_CM4102008.kicad_mod
id=MODULE_CM4102008
3d Model
Thumbnail
Footprint
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