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Contents

README

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PI5C3251QEX

Diodes Incorporated · Signal Switches / Encoders & Decoders / Multiplexers · SSOP-16-150mil

PI5C3251QEX from Diodes Incorporated, in a SSOP-16-150mil. 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 I3 bidirectional Data input/output 3. Connected to Y through a 5Ω pass-transistor switch when selected (S2:S0 = 011) and E is low.
2 I2 bidirectional Data input/output 2. Connected to Y when S2:S0 = 010 and E is low.
3 I1 bidirectional Data input/output 1. Connected to Y when S2:S0 = 001 and E is low.
4 I0 bidirectional Data input/output 0. Connected to Y when S2:S0 = 000 and E is low.
5 Y bidirectional Common data output/input. Connected to the selected I0-I7 pin through a 5Ω switch when E is low; Hi-Z when E is high.
6 NC unconnected No connect. Leave floating or tie as convenient.
7 E input Active-low output enable. When E is low, the selected I channel connects to Y through the 5Ω switch; when E is high, Y is Hi-Z (all switches off).
8 GND power_in Ground reference (0 V).
9 S2 input Channel select input, MSB. Selects one of I0-I7 to connect to Y (see truth table). Has input hysteresis (~150 mV).
10 S1 input Channel select input. Bit 1 of the 3-bit select bus.
11 S0 input Channel select input, LSB. Bit 0 of the 3-bit select bus.
12 I7 bidirectional Data input/output 7. Connected to Y when S2:S0 = 111 and E is low.
13 I6 bidirectional Data input/output 6. Connected to Y when S2:S0 = 110 and E is low.
14 I5 bidirectional Data input/output 5. Connected to Y when S2:S0 = 101 and E is low.
15 I4 bidirectional Data input/output 4. Connected to Y when S2:S0 = 100 and E is low.
16 VCC power_in Positive supply, 5 V ±5% (operating range). Absolute maximum 7.0 V.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package SSOP-16-150mil
Category Logic
Pins 16

Ordering variants

Same part, different packaging or reel option.

  • PI5C3251QEX

CAD (KiCad official)

  • Symbol: PI5C3251QEX
  • Footprint: Package_SO:SSOP-16_5.3x6.2mm_P0.65mm
  • 3D model: SSOP-16-150mil (KiCad packages3D, STEP)

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Diodes Incorporated datasheet (4 pp, sha256 f58692c16a3d88c2, retrieved 2026-08-17, tier: lcsc)
  • 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