cd74hc4051qm96q1

@@ -0,0 +1,56 @@+# CD74HC4051QM96Q1++**Texas Instruments** · Signal Switches / Encoders & Decoders / Multiplexers · SOP-16++CD74HC4051QM96Q1 from Texas Instruments, in a SOP-16. 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 | A4 | bidirectional | Analog channel I/O A4. Bidirectional analog switch terminal; connects to COM (pin 3) when S2S1S0 = 100 and E is low. Signal range VEE to VCC (up to 10 V span, ±5 V bipolar). Typical rON ≈ 70 Ω @ VCC−VEE=4.5 V. |+| 2 | A6 | bidirectional | Analog channel I/O A6. Bidirectional analog switch terminal; connects to COM (pin 3) when S2S1S0 = 110 and E is low. Signal range VEE to VCC. |+| 3 | COM | bidirectional | Common analog OUT/IN (COM OUT/IN A). Shared side of the 8:1 analog switch matrix; routes to the addressed A0-A7 channel. Signal range VEE to VCC; bidirectional (can drive or be driven). |+| 4 | A7 | bidirectional | Analog channel I/O A7. Bidirectional analog switch terminal; connects to COM (pin 3) when S2S1S0 = 111 and E is low. Signal range VEE to VCC. |+| 5 | A5 | bidirectional | Analog channel I/O A5. Bidirectional analog switch terminal; connects to COM (pin 3) when S2S1S0 = 101 and E is low. Signal range VEE to VCC. |+| 6 | E | input | Active-low enable input. When E = low, the addressed channel is connected to COM; when E = high, all channels are OFF (high impedance) regardless of S2:S0. Digital CMOS logic level referenced to VCC/GND (VIH ≥ 3.15 V @ VCC=4.5 V). |+| 7 | VEE | power_in | Negative analog supply for the switch matrix. Sets the lower rail of the analog signal range (VEE to VCC). Range 0 V to −6 V; VCC − VEE ≤ 10 V. Tie to GND for single-supply (0 V) operation. |+| 8 | GND | power_in | Ground / logic reference (0 V). Reference for the digital control inputs (E, S0-S2) and lower rail of the digital logic supply. |+| 9 | S2 | input | Address select bit 2 (MSB) for the 1-of-8 channel decoder. Digital CMOS input referenced to VCC/GND. Combined with S1 and S0 to select which A0-A7 channel connects to COM. |+| 10 | S1 | input | Address select bit 1 for the 1-of-8 channel decoder. Digital CMOS input referenced to VCC/GND. |+| 11 | S0 | input | Address select bit 0 (LSB) for the 1-of-8 channel decoder. Digital CMOS input referenced to VCC/GND. |+| 12 | A3 | bidirectional | Analog channel I/O A3. Bidirectional analog switch terminal; connects to COM (pin 3) when S2S1S0 = 011 and E is low. Signal range VEE to VCC. |+| 13 | A0 | bidirectional | Analog channel I/O A0. Bidirectional analog switch terminal; connects to COM (pin 3) when S2S1S0 = 000 and E is low. Signal range VEE to VCC. |+| 14 | A1 | bidirectional | Analog channel I/O A1. Bidirectional analog switch terminal; connects to COM (pin 3) when S2S1S0 = 001 and E is low. Signal range VEE to VCC. |+| 15 | A2 | bidirectional | Analog channel I/O A2. Bidirectional analog switch terminal; connects to COM (pin 3) when S2S1S0 = 010 and E is low. Signal range VEE to VCC. |+| 16 | VCC | power_in | Positive digital/analog supply. Range 2 V to 6 V (VCC − VEE ≤ 10 V). Powers the internal logic-level conversion, decoder, and upper rail of the analog switch matrix. Bypass with a local ceramic capacitor to GND. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOP-16 |+| Category | Logic |+| Pins | 16 |++## Ordering variants++- `CD74HC4051QM96Q1`+- `CD74HC4051QM96Q1QPWRQ1`++## CAD (KiCad official)++- Symbol: `CD74HC4051QM96Q1`+- Footprint: `Package_SO:SOIC-16_3.9x9.9mm_P1.27mm`+- 3D model: SOP-16 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/lit/ds/symlink/cd74hc4051qm96q1.pdf) (None pp, sha256 `4d58d74515cb6e7d`, retrieved 2026-08-17, tier: manufacturer)+- **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/cd74hc4051qm96q1-datasheet.pdf)

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