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SN74CBTLV3253DBQR
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Texas Instruments Signal Switches, Multiplexers, Decoders, SSOP-16-150mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+53@@ -0,0 +1,53 @@+# SN74CBTLV3253DBQR++**Texas Instruments** · Signal Switches, Multiplexers, Decoders · SSOP-16-150mil++SN74CBTLV3253DBQR from Texas Instruments, in a SSOP-16-150mil. 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 | 1OE | input | Output enable for channel 1, active low; when this input is high the channel 1 FET multiplexer/demultiplexer is disabled (disconnected). |+| 2 | S1 | input | Select input 1 for channel 1; together with S0 it chooses which B port (1B1 to 1B4) connects to port 1A, with S1 as the more significant bit per the function table. |+| 3 | 1B4 | bidirectional | Channel 1 data I/O 4; connects to port 1A when 1OE is low and S1 = H, S0 = H, with a typical 5 Ω switch on-state resistance. |+| 4 | 1B3 | bidirectional | Channel 1 data I/O 3; connects to port 1A when 1OE is low and S1 = H, S0 = L, with a typical 5 Ω switch on-state resistance. |+| 5 | 1B2 | bidirectional | Channel 1 data I/O 2; connects to port 1A when 1OE is low and S1 = L, S0 = H, with a typical 5 Ω switch on-state resistance. |+| 6 | 1B1 | bidirectional | Channel 1 data I/O 1; connects to port 1A when 1OE is low and S1 = L, S0 = L, with a typical 5 Ω switch on-state resistance. |+| 7 | 1A | bidirectional | Channel 1 common switch port, connected to the selected 1B port when 1OE is low; supports rail-to-rail switching per the features list. |+| 8 | GND | power_in | Ground reference for the device. |+| 9 | 2A | bidirectional | Channel 2 common switch port, connected to the selected 2B port when 2OE is low; supports rail-to-rail switching per the features list. |+| 10 | 2B1 | bidirectional | Channel 2 data I/O 1; connects to port 2A when 2OE is low and S1 = L, S0 = L, with a typical 5 Ω switch on-state resistance. |+| 11 | 2B2 | bidirectional | Channel 2 data I/O 2; connects to port 2A when 2OE is low and S1 = L, S0 = H, with a typical 5 Ω switch on-state resistance. |+| 12 | 2B3 | bidirectional | Channel 2 data I/O 3; connects to port 2A when 2OE is low and S1 = H, S0 = L, with a typical 5 Ω switch on-state resistance. |+| 13 | 2B4 | bidirectional | Channel 2 data I/O 4; connects to port 2A when 2OE is low and S1 = H, S0 = H, with a typical 5 Ω switch on-state resistance. |+| 14 | S0 | input | Select input 0 for the multiplexer, which selects the B port connected to port 2A together with S1 (channel 2 select, per the function table). |+| 15 | 2OE | input | Output enable for channel 2, active low; when this input is high the channel 2 FET multiplexer/demultiplexer is disabled (disconnected). |+| 16 | VCC | power_in | Supply voltage, recommended range 2.3 V to 3.6 V; a 0.1 µF bypass capacitor is recommended close to the pin. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SSOP-16-150mil |+| Category | Logic |+| Pins | 16 |++## CAD (KiCad official)++- Symbol: `SN74CBTLV3253DBQR`+- Footprint: `Package_SO:SSOP-16_5.3x6.2mm_P0.65mm`+- 3D model: SSOP-16-150mil (KiCad packages3D, STEP)+- 3D model files: `sn74cbtlv3253dbqr-etched.step` / `sn74cbtlv3253dbqr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn74cbtlv3253dbqr.step` / `sn74cbtlv3253dbqr.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/sn74cbtlv3253) (37 pp, sha256 `b74dead2aecd3e4d`, retrieved 2026-10-08, 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`, primary `claude-haiku-5-5` (text), consensus `claude-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).++[Datasheet PDF](docs/sn74cbtlv3253dbqr-datasheet.pdf)
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when this input is high the channel 1 FET multiplexer/demultiplexer is disabled (disconnected)."+ },+ {+ "number": "2",+ "name": "S1",+ "type": "input",+ "description": "Select input 1 for channel 1; together with S0 it chooses which B port (1B1 to 1B4) connects to port 1A, with S1 as the more significant bit per the function table."+ },+ {+ "number": "3",+ "name": "1B4",+ "type": "bidirectional",+ "description": "Channel 1 data I/O 4; connects to port 1A when 1OE is low and S1 = H, S0 = H, with a typical 5 Ω switch on-state resistance."+ },+ {+ "number": "4",+ "name": "1B3",+ "type": "bidirectional",+ "description": "Channel 1 data I/O 3; connects to port 1A when 1OE is low and S1 = H, S0 = L, with a typical 5 Ω switch on-state resistance."+ },+ {+ "number": "5",+ "name": "1B2",+ "type": "bidirectional",+ "description": "Channel 1 data I/O 2; connects to port 1A when 1OE is low and S1 = L, S0 = H, with a typical 5 Ω switch on-state resistance."+ },+ {+ "number": "6",+ "name": "1B1",+ "type": "bidirectional",+ "description": "Channel 1 data I/O 1; connects to port 1A when 1OE is low and S1 = L, S0 = L, with a typical 5 Ω switch on-state resistance."+ },+ {+ "number": "7",+ "name": "1A",+ "type": "bidirectional",+ "description": "Channel 1 common switch port, connected to the selected 1B port when 1OE is low; supports rail-to-rail switching per the features list."+ },+ {+ "number": "8",+ "name": "GND",+ "type": "power_in",+ "description": "Ground reference for the device."+ },+ {+ "number": "9",+ "name": "2A",+ "type": "bidirectional",+ "description": "Channel 2 common switch port, connected to the selected 2B port when 2OE is low; supports rail-to-rail switching per the features list."+ },+ {+ "number": "10",+ "name": "2B1",+ "type": "bidirectional",+ "description": "Channel 2 data I/O 1; connects to port 2A when 2OE is low and S1 = L, S0 = L, with a typical 5 Ω switch on-state resistance."+ },+ {+ "number": "11",+ "name": "2B2",+ "type": "bidirectional",+ "description": "Channel 2 data I/O 2; connects to port 2A when 2OE is low and S1 = L, S0 = H, with a typical 5 Ω switch on-state resistance."+ },+ {+ "number": "12",+ "name": "2B3",+ "type": "bidirectional",+ "description": "Channel 2 data I/O 3; connects to port 2A when 2OE is low and S1 = H, S0 = L, with a typical 5 Ω switch on-state resistance."+ },+ {+ "number": "13",+ "name": "2B4",+ "type": "bidirectional",+ "description": "Channel 2 data I/O 4; connects to port 2A when 2OE is low and S1 = H, S0 = H, with a typical 5 Ω switch on-state resistance."+ },+ {+ "number": "14",+ "name": "S0",+ "type": "input",+ "description": "Select input 0 for the multiplexer, which selects the B port connected to port 2A together with S1 (channel 2 select, per the function table)."+ },+ {+ "number": "15",+ "name": "2OE",+ "type": "input",+ "description": "Output enable for channel 2, active low; when this input is high the channel 2 FET multiplexer/demultiplexer is disabled (disconnected)."+ },+ {+ "number": "16",+ "name": "VCC",+ "type": "power_in",+ "description": "Supply voltage, recommended range 2.3 V to 3.6 V; a 0.1 µF bypass capacitor is recommended close to the pin."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.3",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.3",+ "primary_model": "claude-haiku-5-5",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-5-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "extractor flagged: The datasheet has one pin table (Figure 4-1 / Table 4-1) that covers the D, DBQ, DGV, PW and DYY 16-; The source text is a Chinese translation of the TI datasheet (SCDS039 English original). Pin descrip"+ ],+ "pages_sent": 37,+ "cost_usd": 0.1237,+ "at": "2026-10-08T01:38:12"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/sn74cbtlv3253",+ "pages": 37,+ "sha256": "b74dead2aecd3e4d",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 16,+ "described": 16,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ },+ "models_3d": [+ {+ "file": "sn74cbtlv3253dbqr.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 7.8,+ 6.2,+ 2.1+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "d0e11e46aeca5dbaa5c4bb538f3f4899761267cabdeba6486325ae9e979c03ef",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "sn74cbtlv3253dbqr-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 7.8,+ 6.2,+ 2.1+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "e85a718506859d7711a223e2729ac4c5566a6d6ed468ab3042782e7f4f95ad20",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ }+ ]+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}