component
DS90UB924TRHSTQ1
Public Made by Adomby adom
Texas Instruments Serializers / Deserializers, WQFN-48-EP(7x7). 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
markdownDS90UB924TRHSTQ1
Texas Instruments · Serializers / Deserializers · WQFN-48-EP(7x7)
DS90UB924TRHSTQ1 from Texas Instruments, in a WQFN-48-EP(7x7). 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 | PDB | input | Power-down Mode Input Pin; must be driven or pulled up to VDD33; H=normal operation, L=powered down with tri-stated outputs and PLL shutdown. |
| 2 | CAPI2S | passive | Decoupling capacitor connection for on-chip regulator; requires 4.7-µF capacitor to GND. |
| 3 | I2S_DB/GPIO_REG5 | output | I2S Data Output or General Purpose I/O Register 5 (configurable); shared functionality, requires external pulldown when GPIO configured. |
| 4 | SDA | bidirectional | I2C Data Input/Output Interface with open-drain output; must have external 4.7-kΩ pullup to VDD33, DO NOT FLOAT. |
| 5 | SCL | bidirectional | I2C Clock Input/Output Interface with open-drain output; must have external 4.7-kΩ pullup to VDD33, DO NOT FLOAT. |
| 6 | VDDIO | power_in | 1.8-V or 3.3-V LVCMOS I/O Power supply; requires 4.7-µF capacitor to GND. |
| 7 | I2S_DA/GPIO_REG6 | output | I2S Data Output or General Purpose I/O Register 6 (configurable); shared functionality. |
| 8 | I2S_CLK/GPIO_REG8 | output | I2S Bit Clock Output or General Purpose I/O Register 8 (configurable); shared functionality. |
| 9 | BISTEN | input | BIST Enable input; requires 10-kΩ pullup if set HIGH. |
| 10 | I2S_WC/GPIO_REG7 | output | I2S Word Clock Output or General Purpose I/O Register 7 (configurable); shared functionality. |
| 11 | MCLK | output | I2S Master Clock Output; drives master clock for I2S audio interface. |
| 12 | IDx | input | Analog I2C Address Select pin; external pullup to VDD33 required under all conditions, DO NOT FLOAT, connect to voltage divider. |
| 13 | GPIO1/SDOUT | bidirectional | General Purpose I/O or Auxiliary I2S Data Output; shared functionality, LVCMOS with pulldown. |
| 14 | GPIO0/SWC | bidirectional | General Purpose I/O or Auxiliary I2S Word Clock output; shared functionality, LVCMOS with pulldown. |
| 15 | TxOUT3+ | output | True LVDS Data Output for channel 3; each pair requires external 100-Ω differential termination. |
| 16 | TxOUT3- | output | Inverting LVDS Data Output for channel 3; each pair requires external 100-Ω differential termination. |
| 17 | TxCLKOUT+ | output | True LVDS Clock Output; pair requires external 100-Ω differential termination for standard LVDS levels. |
| 18 | TxCLKOUT- | output | Inverting LVDS Clock Output; pair requires external 100-Ω differential termination for standard LVDS levels. |
| 19 | TxOUT2+ | output | True LVDS Data Output for channel 2; each pair requires external 100-Ω differential termination. |
| 20 | TxOUT2- | output | Inverting LVDS Data Output for channel 2; each pair requires external 100-Ω differential termination. |
| 21 | TxOUT1+ | output | True LVDS Data Output for channel 1; each pair requires external 100-Ω differential termination. |
| 22 | TxOUT1- | output | Inverting LVDS Data Output for channel 1; each pair requires external 100-Ω differential termination. |
| 23 | TxOUT0+ | output | True LVDS Data Output for channel 0; each pair requires external 100-Ω differential termination. |
| 24 | TxOUT0- | output | Inverting LVDS Data Output for channel 0; each pair requires external 100-Ω differential termination. |
| 25 | CAPLV25 | passive | Decoupling capacitor connection for on-chip regulator; requires 4.7-µF capacitor to GND. |
| 26 | MAPSEL | input | FPD-Link Output Map Select; MAPSEL=0 LSBs on TxOUT3± (default), MAPSEL=1 MSBs on TxOUT3±; requires 10-kΩ pullup if set HIGH. |
| 27 | LOCK | output | LOCK Status Output; 0=PLL unlocked with outputs idle, 1=PLL locked with active outputs; float if unused. |
| 28 | PASS | output | PASS Status Output; 0=BIST errors detected, 1=error-free transmission; float if unused. |
| 29 | CAPLV12 | passive | Decoupling capacitor connection for on-chip regulator; requires 4.7-µF capacitor to GND. |
| 30 | OEN | input | Output Enable input pin; requires 10-kΩ pullup if set HIGH. |
| 31 | VDD33_B | power_in | 3.3-V power supply to on-chip regulator; requires 4.7-µF capacitor to GND. |
| 32 | LFMODE | input | Low Frequency Mode Select; LFMODE=0 (15-96 MHz, default), LFMODE=1 (5-15 MHz); requires 10-kΩ pullup if set HIGH. |
| 33 | CAPL12 | passive | Decoupling capacitor connection for on-chip regulator; requires two 4.7-µF decoupling capacitors to GND. |
| 34 | RES0 | power_in | Reserved pin; must be connected to GND. |
| 35 | OSS_SEL | input | Output Sleep State Select; requires 10-kΩ pullup if set HIGH. |
| 36 | GPIO3/I2S_DC | bidirectional | General Purpose I/O or I2S Data Output; shared functionality, LVCMOS with pulldown. |
| 37 | GPIO2/I2S_DD | bidirectional | General Purpose I/O or I2S Data Output; shared functionality, LVCMOS with pulldown. |
| 38 | VDD33_A | power_in | 3.3-V power supply to on-chip regulator; requires 4.7-µF capacitor to GND. |
| 39 | RES1 | power_in | Reserved pin; must be connected to GND. |
| 40 | RIN+ | bidirectional | FPD-Link III True Input; AC-coupled input with 0.1-µF capacitor required. |
| 41 | RIN- | bidirectional | FPD-Link III Inverting Input; AC-coupled input with 0.1-µF capacitor required. |
| 42 | CMF | passive | Analog Common Mode Filter; requires 0.1-µF capacitor to GND. |
| 43 | BISTC/INTB_IN | input | BIST Clock Select or Interrupt Input; shared functionality, LVCMOS with pulldown, requires 10-kΩ pullup if set HIGH. |
| 44 | CMLOUTP | output | True Loop-through Driver Output; monitor point for equalized forward channel differential signal. |
| 45 | CMLOUTN | output | Inverting Loop-through Driver Output; monitor point for equalized forward channel differential signal. |
| 46 | CAPR12 | passive | Decoupling capacitor connection for on-chip regulator; requires 4.7-µF capacitor to GND. |
| 47 | CAPP12 | passive | Decoupling capacitor connection for on-chip regulator; requires 4.7-µF capacitor to GND. |
| 48 | MODE_SEL | input | Analog Device Configuration Select; configures Backwards Compatibility, Repeater, I2S 4-channel, and Long Cable modes; connect to voltage divider, DO NOT FLOAT. |
| 49 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | WQFN-48-EP(7x7) |
| Category | Communication Interface Chip/UART/485/232 |
| Pins | 49 |
CAD (KiCad official)
- Symbol:
DS90UB924TRHSTQ1 - Footprint:
Package_DFN_QFN:QFN-48-1EP_7x7mm_P0.5mm_EP5.15x5.15mm - 3D model: WQFN-48-EP(7x7) (KiCad packages3D, STEP)
- 3D model files:
ds90ub924trhstq1-etched.step/ds90ub924trhstq1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ds90ub924trhstq1.step/ds90ub924trhstq1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (64 pp, sha256
6450a10ca9afb1ae, retrieved 2026-10-03, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-4-5-20251001(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).