component

CD4543BM

Public Made by Adom

by adom

HGSEMI LCD Drivers, SOP-16. Datasheet-verified pinout, KiCad symbol/footprint/3D.

componentled-drvcd4543bm
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Contents

README

markdown

CD4543BM

HGSEMI · LCD Drivers · SOP-16

CD4543BM from HGSEMI, 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 LD input Latch Disable input. When LD = 1 the BCD inputs (A-D) are passed through to the decoder; when LD = 0 the last BCD code is stored in the 4-bit latch and the outputs are frozen.
2 C input BCD data input, bit C (weight 4) of the 8421 BCD code. CMOS logic input referenced to VSS/VDD.
3 B input BCD data input, bit B (weight 2) of the 8421 BCD code. CMOS logic input referenced to VSS/VDD.
4 D input BCD data input, bit D (weight 8, MSB) of the 8421 BCD code. CMOS logic input referenced to VSS/VDD.
5 A input BCD data input, bit A (weight 1, LSB) of the 8421 BCD code. CMOS logic input referenced to VSS/VDD.
6 Ph input Phase input. For LCD readouts apply a square wave (VSS to VDD) common with the backplane drive. For common-cathode LED select Ph = 0; for common-anode LED select Ph = 1 to invert the segment output combinations.
7 BI input Blanking input. When BI = 1 all seven segment outputs (a-g) are forced to the blank state (all 0 with Ph = 0). Normal decode occurs when BI = 0.
8 VSS power_in Negative supply / ground reference. Tied to 0 V in single-supply operation.
9 a output Seven-segment decoded output 'a'. Directly drives an LCD/LED/VF segment; polarity is set by the Ph input.
10 b output Seven-segment decoded output 'b'. Directly drives an LCD/LED/VF segment; polarity is set by the Ph input.
11 c output Seven-segment decoded output 'c'. Directly drives an LCD/LED/VF segment; polarity is set by the Ph input.
12 d output Seven-segment decoded output 'd'. Directly drives an LCD/LED/VF segment; polarity is set by the Ph input.
13 e output Seven-segment decoded output 'e'. Directly drives an LCD/LED/VF segment; polarity is set by the Ph input.
14 g output Seven-segment decoded output 'g' (middle segment). Directly drives an LCD/LED/VF segment; polarity is set by the Ph input.
15 f output Seven-segment decoded output 'f'. Directly drives an LCD/LED/VF segment; polarity is set by the Ph input.
16 VDD power_in Positive supply pin. Recommended operating range 3.0 V to 15 V (absolute max 18 V).

Key specifications

Parameter Value
Manufacturer HGSEMI
Package SOP-16
Category LED-drv
Pins 16

Ordering variants

Same part, different packaging or reel option.

  • CD4543BMBE
  • CD4543BMBN
  • CD4543BM/TR
  • CD4543BMT/TR
  • CD4543BMBLQ/TR

CAD (KiCad official)

  • Symbol: CD4543BM
  • Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
  • 3D model: SOP-16 (KiCad packages3D, STEP)
  • 3D model files: cd4543bm-etched.step / cd4543bm-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cd4543bm.step / cd4543bm.glb are the bare package body.

Provenance

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

  • Datasheet: HGSEMI datasheet (12 pp, sha256 e4c42b550d773708, 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