CD4543BE Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock

Name: CD4543BE
Brand: Texas Instruments
SKU: CD4543BE
Availability: InStock

CD4543BE is a CMOS BCD-to-Seven-Segment Latch/Decoder/Driver IC for liquid-crystal displays, supporting 16-pin DIP package with 50 pF load capacitance and 1.5 mA output current. Available from stock with worldwide shipping.

ACTIVEIntegrated CircuitVerified Jun 2026

Package / Visual Reference

CD4543BEDual-In-Line Packages

Quick Facts

Manufacturer: Texas Instruments
Package: Dual-In-Line Packages
Pin Count: 16
Lifecycle: ACTIVE
Datasheet: CD4543BE Datasheet PDF
Category: Integrated Circuit
Price: From $0.1035(MOQ 50)
Temp Range: -55.0°C to 125.0°C
RoHS: Compliant
Lead Time: 3–7 business days
Shipping: DHL Express · Worldwide

What are the key features of CD4543BE?

CMOS BCD-to-7-segment latch/decoder/driver with integrated latch for direct LCD interfacing
Supports 50 pF load capacitance and up to 1.5 mA output current per segment
16-pin DIP package (R-PDIP-T16) with RoHS-compliant e4 JESD-609 rating for easy PCB assembly

What is CD4543BE used for?

The CD4543BE is widely used in digital display systems such as calculators, clocks, and industrial meters where BCD-encoded data must be converted to seven-segment LCD outputs. Its integrated latch allows stable display retention without continuous microcontroller intervention, making it ideal for battery-powered and low-power embedded designs.

What are the specifications of CD4543BE?

Pbfree Code	Yes
YTEOL	15
Family	4000/14000/40000
Input Conditioning	LATCHED
JESD-30 Code	R-PDIP-T16
JESD-609 Code	e4
Load Capacitance (CL)	50pF
Logic IC Type	SEVEN SEGMENT DECODER/DRIVER
Max I(ol)	0.0015A
Number of Bits	7
Number of Functions	1
Output Polarity	CONFIGURABLE
Package Body Material	PLASTIC/EPOXY
Package Equivalence Code	DIP16,.3
Package Shape	RECTANGULAR
Package Style	IN-LINE
Packing Method	TUBE
Power Supply Current-Max (ICC)	3mA
Prop. Delay@Nom-Sup	400ns
Propagation Delay (tpd)	1200ns
Qualification Status	Not Qualified
Supply Voltage-Max (Vsup)	18V
Supply Voltage-Min (Vsup)	3V
Supply Voltage-Nom (Vsup)	5V
Surface Mount	NO
Technology	CMOS
Temperature Grade	MILITARY
Terminal Finish	Nickel/Palladium/Gold (Ni/Pd/Au)
Terminal Form	THROUGH-HOLE
Terminal Pitch	2.54mm
Terminal Position	DUAL
## CD4543BE Alternates Showing results	Image
Package	Dual-In-Line Packages

Compliance & Regulatory

RoHS Status	Compliant
Lead-Free	Yes (Pb-Free)
ECCN	EAR99
HTS Code	8542.39.00.90
Country of Origin	Malaysia, Mexico

Where can I find the CD4543BE datasheet?

CD4543BE Datasheet Download

Official datasheet from Texas Instruments

What are equivalent replacements for CD4543BE?

Compatible alternatives and drop-in replacements for CD4543BE:

MCP25625T-E/SS

suggested

View Part →

Compare all alternatives & request quotes →

Frequently Asked Questions

What output current can the CD4543BE drive per segment, and is it sufficient for typical LCD panels?

The CD4543BE provides a maximum output sink current (I_OL) of 1.5 mA per segment. Most standard LCD panels require only 0.1 mA to 1 mA per segment, so the 1.5 mA rating is sufficient for the vast majority of common seven-segment liquid-crystal display modules without external drivers.

How does the integrated latch in CD4543BE benefit microcontroller-based display designs?

The on-chip latch in the CD4543BE holds the BCD input data and maintains a stable seven-segment output without continuous microcontroller intervention. This reduces bus overhead and enables multiplexed display refresh cycles, freeing CPU cycles in embedded systems operating at voltages from 3 V to 15 V.

What load capacitance specification does CD4543BE support, and how does it affect signal integrity?

The CD4543BE is rated for a load capacitance (CL) of 50 pF per output pin. Staying within this 50 pF limit ensures specified propagation delay and output drive performance at the rated 1.5 mA sink current, preventing signal degradation on PCB traces connected to seven-segment LCD segments.

Related Guides

CSD87313DMS Synchronous Buck Power Stage Design Guide

Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.

Aug 6, 2026

STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection

Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.

Aug 6, 2026

C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC

Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.

Aug 4, 2026

STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security

Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.

Aug 4, 2026

Why Buy from FindMyChip

Authorized Source

Verified supply chain with full traceability & inspection

Competitive Pricing

Factory-direct from China distributors, low MOQ

Fast Shipping

DHL Express 3–5 days · FedEx/UPS 5–7 days worldwide

Quality Guaranteed

30-day replacement for defective parts, no questions asked

About Texas Instruments

Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.

View all Texas Instruments parts →

More from Texas Instruments

SN74HC138PWT

Small Outline Packages

Integrated Circuit

MCP6292IDGKT

Small Outline Packages

Integrated Circuit

CD4511BMN

Dual-In-Line Packages

Integrated Circuit

UCC2803DG4

Small Outline Packages

Integrated Circuit

MC33078DRE4

Small Outline Packages

Integrated Circuit

TLV6710DDCT

SOT23 (6-Pin)

Integrated Circuit

AvailabilityIn Stock

Reference Price (USD)

From $0.1035

Buy from 1pc · Factory-direct pricing

Qty.	Unit Price	Ext. Price
50+	$0.4270	$21.35
100+	$0.4010	$40.10
125+	$0.3960	$49.50
1000+	$0.3410	$341.00
1870+	$0.1070	$200.09
2420+	$0.1035	$250.47

pcs

Unit price: $0.4270 · Total: $21.35

In Stock · 24h Response · Worldwide Shipping

Direct Contact

WhatsApp Inquiry Email RFQ

Lead Time3-7 business days

MOQFrom 1 piece

ShippingDHL / FedEx / UPS

OriginChina (Authorized)

Response within 24 hours · Worldwide shipping

“We've been using FindMyChip for 2 years. Pricing is consistently 20-30% below Mouser/DigiKey for volume orders.”

Sarah Kim

VP Engineering, NovaBit Electronics, South Korea

CD4543BE Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock

What are the key features of CD4543BE?

What is CD4543BE used for?

What are the specifications of CD4543BE?

Compliance & Regulatory

Where can I find the CD4543BE datasheet?

What are equivalent replacements for CD4543BE?

Frequently Asked Questions

What output current can the CD4543BE drive per segment, and is it sufficient for typical LCD panels?

How does the integrated latch in CD4543BE benefit microcontroller-based display designs?

What load capacitance specification does CD4543BE support, and how does it affect signal integrity?

Related Guides

CSD87313DMS Synchronous Buck Power Stage Design Guide

STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection

C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC

STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security

Why Buy from FindMyChip

About Texas Instruments

More from Texas Instruments

You May Also Like