CD4543BPWR Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The CD4543BPWR is a CMOS BCD-to-seven-segment latch, decoder, and driver IC from Texas Instruments designed for liquid crystal display interfaces. It decodes 4-bit BCD input to drive 7-segment LCD segments with integrated latch, supporting 50 pF load capacitance and 1.5 mA output current. Ideal for digital panel meters, counters, and portable LCD display systems.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- CD4543BPWR Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Integrated latch, BCD decoder, and 7-segment driver in one IC reduces component count and simplifies LCD display interface design
- Specifically optimized for liquid crystal displays with 50 pF load capacitance support and low output current of 1.5 mA for LCD segment driving
- CMOS 4000-series family compatibility enables wide supply voltage range operation for battery-powered portable instrumentation and display applications
Applications
The CD4543BPWR is well-suited for digital panel meters, portable instruments, frequency counters, and any application using BCD-encoded data to drive 7-segment liquid crystal displays. Its built-in latch allows BCD input data to be stored and held while the display is updated, reducing flicker and simplifying microcontroller interfacing. The 16-pin SOIC package and CMOS technology make it ideal for compact, low-power battery-operated display systems.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Family | 4000/14000/40000 |
| Input Conditioning | LATCHED |
| JESD-30 Code | R-PDSO-G16 |
| 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 Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| 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 | YES |
| Technology | CMOS |
| Temperature Grade | MILITARY |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What display type is the CD4543BPWR designed to drive?
The CD4543BPWR is specifically designed to drive liquid crystal displays (LCDs). It includes a BCD-to-seven-segment decoder optimized for LCD segment outputs with 50 pF load capacitance support and 1.5 mA output current, making it well-matched for direct LCD panel connections without additional drivers.
Does the CD4543BPWR include an internal latch?
Yes, the CD4543BPWR incorporates an integrated input latch that stores the BCD input data. When the latch enable input is asserted, data is latched and held, allowing the microcontroller or logic circuit to update inputs without causing display flicker. This is particularly useful in multiplexed and refreshed display systems.
What IC family does the CD4543BPWR belong to?
The CD4543BPWR belongs to the CMOS 4000/14000/40000 logic family, which is compatible with a wide supply voltage range typically from 3 V to 18 V. This flexibility makes it suitable for both battery-powered portable devices and mains-powered industrial instruments using a variety of supply voltages.
What package does the CD4543BPWR use?
The CD4543BPWR is available in a 16-pin small outline IC (SOIC) package with JESD-30 code R-PDSO-G16 and RoHS-compliant (lead-free) construction. The SOIC package is a standard surface-mount format widely used in consumer electronics, instrumentation, and industrial display control circuits for compact PCB layouts.
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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.
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