CD74HC4543EE4 Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
The CD74HC4543EE4 is a BCD-to-seven-segment latch, decoder, and driver IC from Texas Instruments in the HC CMOS logic family with configurable output polarity and latched input conditioning. It supports 50 pF load capacitance and drives seven-segment displays directly in a 16-pin DIP package. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- CD74HC4543EE4 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.7068(MOQ 1000)
- 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 CD74HC4543EE4?
- BCD-to-seven-segment decoder and driver with integrated latch enabling stable display output without continuous MCU refresh in a single IC
- Configurable output polarity supporting both common-cathode and common-anode seven-segment LED display configurations from the same device
- HC CMOS family with latched input conditioning and 50 pF load capacitance for reliable segment driving and noise immunity
- 16-pin PDIP through-hole package ideal for prototyping, educational use, and retrofitting legacy display driver circuits
What is CD74HC4543EE4 used for?
The CD74HC4543EE4 is used in digital clocks, counters, scoreboards, and industrial panel meters that require direct BCD-to-seven-segment display driving with hardware latching to hold digit values. It is well-suited for embedded systems with limited GPIO where the onboard latch reduces the number of required microcontroller output lines. The device also finds application in legacy equipment repair, educational kits, and numeric display modules in consumer appliances and test instruments.
What are the specifications of CD74HC4543EE4?
| Pbfree Code | Yes |
| YTEOL | 0 |
| Family | HC/UH |
| Input Conditioning | LATCHED |
| JESD-30 Code | R-PDIP-T16 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | SEVEN SEGMENT DECODER/DRIVER |
| Number of Functions | 1 |
| Output Polarity | CONFIGURABLE |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Power Supply Current-Max (ICC) | 50mA |
| Prop. Delay@Nom-Sup | 102ns |
| Propagation Delay (tpd) | 510ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 6V |
| Supply Voltage-Min (Vsup) | 2V |
| Supply Voltage-Nom (Vsup) | 4.5V |
| Surface Mount | NO |
| Technology | CMOS |
| Temperature Grade | MILITARY |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the CD74HC4543EE4 datasheet?
CD74HC4543EE4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for CD74HC4543EE4?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What function does the CD74HC4543EE4 perform?
The CD74HC4543EE4 is a BCD-to-seven-segment latch, decoder, and driver. It converts 4-bit BCD input data into the seven-segment output signals needed to illuminate the correct segments of a seven-segment LED display, with an integrated latch for stable output.
Does the CD74HC4543EE4 support common-anode and common-cathode displays?
Yes, the CD74HC4543EE4 features configurable output polarity, allowing it to drive both common-cathode and common-anode seven-segment LED displays by selecting the appropriate output phase, eliminating the need for separate ICs for each display type.
What is the significance of the latched input in the CD74HC4543EE4?
The latched input conditioning means the decoded output holds its last state when the latch enable pin is deasserted, allowing the display to retain its value while the microcontroller updates other tasks, reducing flicker and continuous output line toggling.
What package does the CD74HC4543EE4 come in?
The CD74HC4543EE4 is available in a 16-pin PDIP (Plastic Dual In-line Package) through-hole format, making it well-suited for breadboard prototyping, educational electronics projects, and through-hole PCB designs.
What load capacitance does the CD74HC4543EE4 support?
The CD74HC4543EE4 supports a load capacitance of 50 pF per output, which is adequate for driving typical seven-segment LED display segment inputs, PCB traces, and short wiring harnesses in display modules without additional buffer stages.
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Why Buy from FindMyChip
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.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1000+ | $0.9462 | $946.20 |
| 10000+ | $0.8436 | $8436.00 |
| 100000+ | $0.7068 | $70680.00 |
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