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Contents

README

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CD4555BPWR

Texas Instruments · Signal Switches, Multiplexers, Decoders · TSSOP-16

CD4555BPWR from Texas Instruments, in a TSSOP-16. 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 1E input Enable input for decoder 1; when high, all outputs of that decoder go low regardless of A and B.
2 1A input Select input A of decoder 1; inputs are 0.5 V to VDD+0.5 V rated.
3 1B input Select input B of decoder 1; inputs are 0.5 V to VDD+0.5 V rated.
4 1Q0 output Decoder 1 output Q0, active high on select.
5 1Q1 output Decoder 1 output Q1, active high on select.
6 1Q2 output Decoder 1 output Q2, active high on select.
7 1Q3 output Decoder 1 output Q3, active high on select.
8 VSS power_in Ground / negative supply terminal; supply voltages are referenced to VSS.
9 2Q3 output Decoder 2 output Q3, active high on select.
10 2Q2 output Decoder 2 output Q2, active high on select.
11 2Q1 output Decoder 2 output Q1, active high on select.
12 2Q0 output Decoder 2 output Q0, active high on select.
13 2B input Select input B of decoder 2; inputs are 0.5 V to VDD+0.5 V rated.
14 2A input Select input A of decoder 2; inputs are 0.5 V to VDD+0.5 V rated.
15 2E input Enable input for decoder 2; when high, all outputs of that decoder go low regardless of A and B.
16 VDD power_in Positive supply voltage, 3 V to 18 V recommended, absolute maximum -0.5 V to +20 V.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package TSSOP-16
Category Logic
Pins 16

CAD (KiCad official)

  • Symbol: CD4555BPWR
  • Footprint: Package_SO:TSSOP-16_4.4x5mm_P0.65mm
  • 3D model: TSSOP-16 (KiCad packages3D, STEP)
  • 3D model files: cd4555bpwr-etched.step / cd4555bpwr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cd4555bpwr.step / cd4555bpwr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (21 pp, sha256 1e542db81c29dfa1, retrieved 2026-10-18, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (vision), consensus claude-opus-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