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DS90UB635TRHBRQ1
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Texas Instruments Serializers, Deserializers, QFN-32(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownDS90UB635TRHBRQ1
Texas Instruments · Serializers, Deserializers · QFN-32(5x5)
DS90UB635TRHBRQ1 from Texas Instruments, in a QFN-32(5x5). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | CSI_D1P | input | DPHY CSI-2 data input; connect to a CSI-2 data source with matched 100-Ω (±5%) impedance interconnect, and it may be left floating if unused. |
| 2 | CSI_D1N | input | DPHY CSI-2 data input; connect to a CSI-2 data source with matched 100-Ω (±5%) impedance interconnect, and it may be left floating if unused. |
| 3 | CSI_D0P | input | DPHY CSI-2 data input; connect to a CSI-2 data source with matched 100-Ω (±5%) impedance interconnect, and it may be left floating if unused. |
| 4 | CSI_D0N | input | DPHY CSI-2 data input; connect to a CSI-2 data source with matched 100-Ω (±5%) impedance interconnect, and it may be left floating if unused. |
| 5 | CSI_CLKP | input | DPHY CSI-2 clock input; connect to a CSI-2 clock source with matched 100-Ω (±5%) impedance interconnect. |
| 6 | CSI_CLKN | input | DPHY CSI-2 clock input; connect to a CSI-2 clock source with matched 100-Ω (±5%) impedance interconnect. |
| 7 | RES0 | input | Reserved pin; connect to GND. |
| 8 | PDB | input | Power-down inverted input with internal 1-MΩ pulldown; PDB = 1.8 V enables the device and PDB = 0 powers it down, and the PDB input is not 3.3-V tolerant. |
| 9 | LPF1 | passive | Loop filter 1; connect a 0.022-µF capacitor to VDDPLL (pin 11) with the loop kept as small as possible. |
| 10 | VDDPLL_CAP | passive | Internal analog regulator output for decoupling; typically 10-µF, 0.1-µF, and 0.01-µF capacitors to GND, and must not be connected to an external supply rail. |
| 11 | VDDPLL | power_in | 1.8-V (±5%) analog power supply pin; typically bypassed with 1-µF and 0.01-µF capacitors to GND. |
| 12 | LPF2 | passive | Loop filter 2; connect a 0.1-µF capacitor from this pin to GND. |
| 13 | DOUT- | bidirectional | FPD-Link III input/output pin that must be AC-coupled; the FPD-Link III output voltage is limited to -0.3 V to 1.21 V. |
| 14 | DOUT+ | bidirectional | FPD-Link III input/output pin that must be AC-coupled; the FPD-Link III output voltage is limited to -0.3 V to 1.21 V. |
| 15 | VDDDRV_CAP | passive | Internal analog regulator output for decoupling; typically 10-µF, 0.1-µF, and 0.01-µF capacitors to GND, and must not be connected to an external supply rail. |
| 16 | VDDDRV | power_in | 1.8-V (±5%) analog power supply pin; typically bypassed with 1-µF and 0.01-µF capacitors to GND. |
| 17 | GPIO_0 | bidirectional | General-purpose input/output that defaults to an input with a 300-kΩ (typical) internal pulldown at power-up; may be left floating, but TI recommends setting GPIOx_INPUT_EN to 0 to disable it. |
| 18 | GPIO_1 | bidirectional | General-purpose input/output that defaults to an input with a 300-kΩ (typical) internal pulldown at power-up; may be left floating, but TI recommends setting GPIOx_INPUT_EN to 0 to disable it. |
| 19 | CLK_OUT/IDX | bidirectional | IDX strap input sets the I2C pull-up voltage and device address when PDB goes HIGH and then becomes CLK_OUT; if CLK_OUT is used the minimum resistance on the pin is 35 kΩ, and if unused it may be tied to GND. |
| 20 | CLKIN | input | Reference clock input; connect to a local clock source in non-sync external clock mode, and it may be left open in other clocking modes. |
| 21 | MODE | input | Mode-select strap input sampled when PDB transitions LOW to HIGH to set the default operating mode, typically set with a voltage divider between VDD18 and GND. |
| 22 | RES1 | unconnected | Reserved pin; do not connect (leave floating). |
| 23 | I2C_SDA | bidirectional | Open-drain I2C data pin, typically pulled up by 470-Ω to 4.7-kΩ resistors to a 1.8-V or 3.3-V rail depending on the IDX setting; absolute maximum open-drain voltage is -0.3 V to 3.96 V. |
| 24 | I2C_SCL | bidirectional | Open-drain I2C clock pin, typically pulled up by 470-Ω to 4.7-kΩ resistors to a 1.8-V or 3.3-V rail depending on the IDX setting; absolute maximum open-drain voltage is -0.3 V to 3.96 V. |
| 25 | VDDD | power_in | 1.8-V (±5%) power supply pin; typically bypassed with 1-µF and 0.01-µF capacitors to GND. |
| 26 | VDDD_CAP | passive | Internal analog regulator output for decoupling; typically 10-µF, 0.1-µF, and 0.01-µF capacitors to GND, and must not be connected to an external supply rail. |
| 27 | GPIO_2 | bidirectional | General-purpose input/output that defaults to an input with a 300-kΩ (typical) internal pulldown at power-up; may be left floating, but TI recommends setting GPIOx_INPUT_EN to 0 to disable it. |
| 28 | GPIO_3 | bidirectional | General-purpose input/output that defaults to an input with a 300-kΩ (typical) internal pulldown at power-up; may be left floating, but TI recommends setting GPIOx_INPUT_EN to 0 to disable it. |
| 29 | CSI_D3P | input | DPHY CSI-2 data input; connect to a CSI-2 data source with matched 100-Ω (±5%) impedance interconnect, and it may be left floating if unused. |
| 30 | CSI_D3N | input | DPHY CSI-2 data input; connect to a CSI-2 data source with matched 100-Ω (±5%) impedance interconnect, and it may be left floating if unused. |
| 31 | CSI_D2P | input | DPHY CSI-2 data input; connect to a CSI-2 data source with matched 100-Ω (±5%) impedance interconnect, and it may be left floating if unused. |
| 32 | CSI_D2N | input | DPHY CSI-2 data input; connect to a CSI-2 data source with matched 100-Ω (±5%) impedance interconnect, and it may be left floating if unused. |
| 33 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | QFN-32(5x5) |
| Category | Interface |
| Pins | 33 |
CAD (KiCad official)
- Symbol:
DS90UB635TRHBRQ1 - Footprint:
Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.3x3.3mm - 3D model: QFN-32(5x5) (KiCad packages3D, STEP)
- 3D model files:
ds90ub635trhbrq1-etched.step/ds90ub635trhbrq1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ds90ub635trhbrq1.step/ds90ub635trhbrq1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (83 pp, sha256
504de8fca9d823ef, retrieved 2026-10-09, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).