component
ts3a27518etrtwrq1
Public Unreviewedby Ray
Texas Instruments Analog Switches, Multiplexers, QFN-24-EP(4x4). Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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README
markdownTS3A27518ETRTWRQ1
Texas Instruments · Analog Switches, Multiplexers · QFN-24-EP(4x4)
TS3A27518ETRTWRQ1 from Texas Instruments, in a QFN-24-EP(4x4). 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 | COM1 | bidirectional | Common-signal path 1. Connects to NC1 when IN1 is low or NO1 when IN1 is high (and EN is enabled). Bidirectional analog/digital switch throughput up to V+. |
| 2 | GND | power_in | Device ground reference (0 V). |
| 3 | COM2 | bidirectional | Common-signal path 2. Routed to NC2 or NO2 based on IN1. |
| 4 | COM3 | bidirectional | Common-signal path 3. Routed to NC3 or NO3 based on IN1. |
| 5 | VCC | power_in | Positive supply voltage, 1.65 V to 3.6 V (single-supply operation). |
| 6 | COM4 | bidirectional | Common-signal path 4. Routed to NC4 or NO4 based on IN2. |
| 7 | COM5 | bidirectional | Common-signal path 5. Routed to NC5 or NO5 based on IN2. |
| 8 | NO1 | bidirectional | Normally-open signal path 1; connected to COM1 when IN1 is high and EN enabled. |
| 9 | COM6 | bidirectional | Common-signal path 6. Routed to NC6 or NO6 based on IN2. |
| 10 | NO2 | bidirectional | Normally-open signal path 2; connected to COM2 when IN1 is high. |
| 11 | IN2 | input | Digital control input; selects whether COM4/COM5/COM6 connect to their NC or NO pin. 1.8-V logic threshold compatible, tolerant to 3.6 V. |
| 12 | NO3 | bidirectional | Normally-open signal path 3; connected to COM3 when IN1 is high. |
| 13 | NO6 | bidirectional | Normally-open signal path 6; connected to COM6 when IN2 is high. |
| 14 | NO4 | bidirectional | Normally-open signal path 4; connected to COM4 when IN2 is high. |
| 15 | NO5 | bidirectional | Normally-open signal path 5; connected to COM5 when IN2 is high. |
| 16 | NC5 | bidirectional | Normally-closed signal path 5; connected to COM5 when IN2 is low. |
| 17 | EN | input | Active-low enable. When high, all six switches are opened (high-impedance); when low, IN1/IN2 select the active path. 1.8-V logic threshold compatible, tolerant to 3.6 V. |
| 18 | NC4 | bidirectional | Normally-closed signal path 4; connected to COM4 when IN2 is low. |
| 19 | NC6 | bidirectional | Normally-closed signal path 6; connected to COM6 when IN2 is low. |
| 20 | NC3 | bidirectional | Normally-closed signal path 3; connected to COM3 when IN1 is low. |
| 21 | IN1 | input | Digital control input; selects whether COM1/COM2/COM3 connect to their NC or NO pin. 1.8-V logic threshold compatible, tolerant to 3.6 V. |
| 22 | NC2 | bidirectional | Normally-closed signal path 2; connected to COM2 when IN1 is low. |
| 23 | NC1 | bidirectional | Normally-closed signal path 1; connected to COM1 when IN1 is low. |
| 24 | N.C. | unconnected | Not connected internally; leave floating or tie to GND. |
| 25 | GND | power_in | Exposed thermal pad on the bottom of the WQFN package. Tie to GND for best thermal and electrical performance. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | QFN-24-EP(4x4) |
| Category | Interface |
| Pins | 25 |
Ordering variants
TS3A27518ETRTWRQ1TS3A27518ETRTWRQ1RTWTTS3A27518ETRTWRQ1PWRTS3A27518ETRTWRQ1PW
CAD (KiCad official)
- Symbol:
TS3A27518ETRTWRQ1 - Footprint:
Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.7x2.7mm - 3D model: QFN-24-EP(4x4) (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (None pp, sha256
660bd13d0cc877b5, 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).
Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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