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HEF4543BT

Public Made by Adom

by adom

Nexperia Signal Switches, Multiplexers, Decoders, SOIC-16. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

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HEF4543BT

Nexperia · Signal Switches, Multiplexers, Decoders · SOIC-16

HEF4543BT from Nexperia, in a SOIC-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 LE input Latch enable input (active LOW); stores current BCD code into latches on LOW pulse.
2 D2 input BCD address input bit 2; one of four inputs D0-D3 for selecting digit 0-9 or blank display.
3 D1 input BCD address input bit 1; one of four inputs D0-D3 for selecting digit 0-9 or blank display.
4 D3 input BCD address input bit 3; one of four inputs D0-D3 for selecting digit 0-9 or blank display.
5 D0 input BCD address input bit 0; one of four inputs D0-D3 for selecting digit 0-9 or blank display.
6 PH input Phase input (active HIGH); for LCD apply square-wave; for LED select LOW (common cathode) or HIGH (common anode).
7 BL input Blanking input (active HIGH); forces all segment outputs LOW when HIGH, blanking the display.
8 VSS power_in Ground; reference supply voltage (0 V) for all inputs and outputs.
9 Qa output Segment output a; buffered 7-segment display output with IOL(max) = 3.6 mA and IOH(max) = -3.6 mA at VDD = 15 V.
10 Qb output Segment output b; buffered 7-segment display output.
11 Qc output Segment output c; buffered 7-segment display output.
12 Qd output Segment output d; buffered 7-segment display output.
13 Qe output Segment output e; buffered 7-segment display output.
14 Qg output Segment output g; buffered 7-segment display output.
15 Qf output Segment output f; buffered 7-segment display output.
16 VDD power_in Supply voltage; recommended operating range 3 V to 15 V referenced to VSS.

Key specifications

Parameter Value
Manufacturer Nexperia
Package SOIC-16
Category Logic
Pins 16

CAD (KiCad official)

  • Symbol: HEF4543BT
  • Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
  • 3D model: SOIC-16 (KiCad packages3D, STEP)
  • 3D model files: hef4543bt-etched.step / hef4543bt-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); hef4543bt.step / hef4543bt.glb are the bare package body.

Provenance

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

  • Datasheet: Nexperia datasheet (13 pp, sha256 3c6e8caac1273355, retrieved 2026-09-22, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-4-6 (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