CD4052B

@@ -0,0 +1,60 @@+# CD4052B++**Texas Instruments** · Dual 4-channel analog mux / demux · SOIC-16++A dual 4-channel analog multiplexer/demultiplexer in SOIC-16, part of the CD4051/4052/4053 family. It contains two independent 4-to-1 switches (the X group and the Y group) that share one 2-bit address (A, B), so it routes a differential or stereo pair: address 0-3 connects X_COM to one of X0-X3 and Y_COM to the matching Y0-Y3, bidirectionally. A shared inhibit (INH) opens all switches, and a separate VEE lets it pass bipolar signals below ground. Use it to switch between four stereo sources, scan differential sensors, or steer a signal pair. Runs 3-18 V (VDD).++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | Y0 | bidirectional | Y-section channel 0 analog input/output. Connected to Y COM (pin 3) when A=0, B=0 and INH=0. |+| 2 | Y2 | bidirectional | Y-section channel 2 analog input/output. Connected to Y COM (pin 3) when A=0, B=1 and INH=0. |+| 3 | Y_COM | bidirectional | Y common out/in. Bidirectional common terminal of the Y-section 4:1 analog multiplexer, routed to one of Y0-Y3 based on the A/B address when INH=0. |+| 4 | Y3 | bidirectional | Y-section channel 3 analog input/output. Connected to Y COM (pin 3) when A=1, B=1 and INH=0. |+| 5 | Y1 | bidirectional | Y-section channel 1 analog input/output. Connected to Y COM (pin 3) when A=1, B=0 and INH=0. |+| 6 | INH | input | Inhibit input (active high). When INH=1 (VDD), all channels are disabled (both X and Y sections turned OFF). Logic levels: 0=VSS, 1=VDD. VIH,min = 3.5V at VDD=5V; VIL,max = 0.8V at VDD=5V. |+| 7 | VEE | power_in | Negative analog supply. Sets the lower rail of the analog signal swing (analog signals may swing from VEE to VDD). Typically tied to VSS for single-supply operation or to a negative rail for bipolar analog signals. VDD-VEE ≤ 20V. |+| 8 | VSS | power_in | Digital ground / logic reference. Digital-control input logic levels are: 0 = VSS, 1 = VDD. |+| 9 | B | input | Channel select address bit B (MSB of 2-bit address). Together with A, selects one of four channels (0-3) in both the X and Y sections simultaneously. Logic levels: 0=VSS, 1=VDD. |+| 10 | A | input | Channel select address bit A (LSB of 2-bit address). Together with B, selects one of four channels (0-3) in both the X and Y sections simultaneously. Logic levels: 0=VSS, 1=VDD. |+| 11 | X3 | bidirectional | X-section channel 3 analog input/output. Connected to X COM (pin 13) when A=1, B=1 and INH=0. |+| 12 | X0 | bidirectional | X-section channel 0 analog input/output. Connected to X COM (pin 13) when A=0, B=0 and INH=0. |+| 13 | X_COM | bidirectional | X common in/out. Bidirectional common terminal of the X-section 4:1 analog multiplexer, routed to one of X0-X3 based on the A/B address when INH=0. |+| 14 | X1 | bidirectional | X-section channel 1 analog input/output. Connected to X COM (pin 13) when A=1, B=0 and INH=0. |+| 15 | X2 | bidirectional | X-section channel 2 analog input/output. Connected to X COM (pin 13) when A=0, B=1 and INH=0. |+| 16 | VDD | power_in | Positive supply input. Operating range 3V to 20V (VDD referenced to VSS). Sets the upper rail for both the analog signal swing and the digital-control logic HIGH level. Absolute max VDD-VEE = 20V. |++## Key specifications++| Parameter | Value |+|---|---|+| Type | Dual 4-channel analog mux/demux |+| Switches | 2 x 4:1 (X and Y groups), bidirectional |+| Control | shared 2-bit address (A/B) + INH |+| Signal range | bipolar (VDD to VEE) |+| Supply (VDD) | 3-18 V |+| On-resistance | ~125 Ω typ at 15 V |+| Family | CD4051/4052/4053 |+| Package | SOIC-16 |++## Ordering variants++- `CD4052BM96 (SOIC-16)`+- `CD4052BE (PDIP-16)`++## CAD (KiCad official)++- Symbol: `Analog_Switch:CD4052B`+- Footprint: `Package_SO:SOIC-16_3.9x9.9mm_P1.27mm`+- 3D model: SOIC-16 (KiCad packages3D)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/lit/ds/symlink/cd4052b.pdf) (39 pp, sha256 `45b7f1be0f490337`, 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/cd4052b-datasheet.pdf)

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