LMK00334RTVR

@@ -0,0 +1,76 @@+# LMK00334RTVR++**Texas Instruments** · Clock Buffers, Drivers, Distributors · WQFN-32-EP(5x5)++LMK00334RTVR from Texas Instruments, in a WQFN-32-EP(5x5). Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | GND | power_in | Ground return. |+| 2 | VCCOA | power_in | Output supply for Bank A output buffers. 3.3 V or 2.5 V. Pin 2 and pin 5 are internally connected; bypass with 0.1 µF low-ESR capacitor near each pin. |+| 3 | CLKoutA0 | output | Differential clock output A0 (true). HCSL or Hi-Z. |+| 4 | CLKoutA0* | output | Differential clock output A0 (complement). HCSL or Hi-Z. |+| 5 | VCCOA | power_in | Output supply for Bank A output buffers. 3.3 V or 2.5 V. Internally tied to pin 2; bypass with 0.1 µF near pin. |+| 6 | CLKoutA1 | output | Differential clock output A1 (true). HCSL or Hi-Z. |+| 7 | CLKoutA1* | output | Differential clock output A1 (complement). HCSL or Hi-Z. |+| 8 | GND | power_in | Ground return. |+| 9 | CLKout_EN | input | Bank A and Bank B output enable, active-high. CMOS control input with internal pulldown. |+| 10 | VCC | power_in | Core and input buffer supply. 3.3 V. Bypass each VCC pin with a 0.1 µF low-ESR capacitor. |+| 11 | OSCin | input | Crystal input; may also be driven by an XO/TCXO or other external single-ended clock. |+| 12 | OSCout | output | Crystal output. If OSCin is driven by a single-ended clock, OSCout should be left floating. |+| 13 | CLKin_SEL0 | input | Clock input MUX select 0. CMOS control input with internal pulldown. |+| 14 | CLKin0 | input | Universal clock input 0, true (differential or single-ended). |+| 15 | CLKin0* | input | Universal clock input 0, complement (differential or single-ended). |+| 16 | CLKin_SEL1 | input | Clock input MUX select 1. CMOS control input with internal pulldown. |+| 17 | GND | power_in | Ground return. |+| 18 | CLKoutB1* | output | Differential clock output B1 (complement). HCSL or Hi-Z. |+| 19 | CLKoutB1 | output | Differential clock output B1 (true). HCSL or Hi-Z. |+| 20 | VCCOB | power_in | Output supply for Bank B output buffers. 3.3 V or 2.5 V. Pin 20 and pin 23 are internally tied; bypass with 0.1 µF near each pin. |+| 21 | CLKoutB0* | output | Differential clock output B0 (complement). HCSL or Hi-Z. |+| 22 | CLKoutB0 | output | Differential clock output B0 (true). HCSL or Hi-Z. |+| 23 | VCCOB | power_in | Output supply for Bank B output buffers. 3.3 V or 2.5 V. Internally tied to pin 20; bypass with 0.1 µF near pin. |+| 24 | GND | power_in | Ground return. |+| 25 | NC | unconnected | No internal connection. May be left floating, tied to GND, or tied to any potential within the Absolute Maximum supply range. |+| 26 | CLKin1* | input | Universal clock input 1, complement (differential or single-ended). |+| 27 | CLKin1 | input | Universal clock input 1, true (differential or single-ended). |+| 28 | VCC | power_in | Core and input buffer supply. 3.3 V. Bypass with 0.1 µF low-ESR capacitor near pin. |+| 29 | REFout | output | LVCMOS reference output. Enabled by driving REFout_EN high. |+| 30 | VCCOC | power_in | Supply for the REFout buffer. 3.3 V or 2.5 V. Bypass with 0.1 µF low-ESR capacitor near pin. |+| 31 | REFout_EN | input | REFout enable, active-high. Also synchronizes REFout with the selected clock input internally. CMOS input with internal pulldown. |+| 32 | VCC | power_in | Core and input buffer supply. 3.3 V. Bypass with 0.1 µF low-ESR capacitor near pin. |+| DAP | DAP | power_in | Die attach pad. Must be soldered to the PCB ground plane for thermal dissipation. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | WQFN-32-EP(5x5) |+| Category | Clock/Timing |+| Pins | 33 |++## Ordering variants++Same part, different packaging or reel option.++- `LMK00334RTVR`+- `LMK00334RTVRRTVT`++## CAD (KiCad official)++- Symbol: `LMK00334RTVR`+- Footprint: `Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.3x3.3mm`+- 3D model: WQFN-32-EP(5x5) (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/lmk00334) (35 pp, sha256 `0fea59e58d9782db`, retrieved 2026-08-17, 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:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/lmk00334rtvr-datasheet.pdf)

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