CD4543BM96G4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments CD4543BM96G4 is a CMOS BCD-to-seven-segment latch decoder and driver IC in a 16-pin SOIC package, supporting both LCD and LED display operation with configurable output polarity. Operates from 3 V to 18 V supply with 50 pF load capacitance rating for direct segment drive. Available in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- CD4543BM96G4 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
- Configurable output polarity supports both LCD phase-drive and LED common-cathode or common-anode display configurations without external inversion logic
- Integrated BCD latch enables multiplexed display refresh with minimal microcontroller I/O, reducing system pin count
- Wide 3 V to 18 V supply range makes CD4543BM96G4 compatible with 5 V TTL, 3.3 V CMOS, and battery-powered designs
- CMOS 4000-series family ensures low static power consumption and compatibility with legacy industrial display systems
Applications
The CD4543BM96G4 is commonly used in industrial panel meters, test equipment readouts, and process control displays that require reliable seven-segment numeric output from BCD-encoded microcontroller data. Its support for LCD direct drive makes it ideal for battery-operated instruments such as handheld multimeters, where minimizing power consumption is essential. The device is also used in consumer appliances, clocks, and educational electronics kits requiring straightforward numeric digit display.
Specifications
| YTEOL | 0 |
| 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 |
| Number of Functions | 1 |
| Output Polarity | CONFIGURABLE |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Prop. Delay@Nom-Sup | 1200ns |
| 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 |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| 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 | 8542.39.00.60 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
Can CD4543BM96G4 directly drive a 7-segment LCD without additional driver ICs?
Yes. The CD4543BM96G4 is specifically designed to drive liquid crystal displays using an AC phase-drive technique. When connected to a backplane signal, the configurable output polarity generates a 50% duty-cycle square wave on active segments and an in-phase signal on inactive segments, producing the required AC drive across each LCD cell at voltages from 3 V to 18 V with up to 50 pF segment capacitance per output.
What BCD input codes does CD4543BM96G4 decode, and how does the latch function work?
The CD4543BM96G4 decodes BCD input codes 0 through 9 (4-bit binary 0000 to 1001) and drives the corresponding seven-segment patterns. Inputs 1010 through 1111 (10 to 15 decimal) result in blanked outputs. The integrated latch holds the last valid BCD value on the outputs when the latch enable pin is asserted, allowing the microcontroller to multiplex 4 data lines across multiple display digits at refresh rates above 50 Hz.
How does CD4543BM96G4 differ from CD4511B for LED display applications?
The CD4511B is designed exclusively for active-high LED common-cathode displays, while the CD4543BM96G4 supports configurable output polarity for both LCD and LED configurations, including common-anode LED displays requiring active-low outputs. The CD4543BM96G4 also accepts a wider 3 V to 18 V supply range versus the CD4511B's 3 V to 18 V range, but its blanking and phase inputs offer more flexible display control for mixed-display system architectures.
What is the maximum operating temperature for CD4543BM96G4 in industrial display panels?
The CD4543BM96G4 is rated for industrial operation from -55°C to +125°C, making it suitable for harsh factory-floor and outdoor equipment panel meters. At the full 18 V supply and 125°C junction temperature, output drive current remains sufficient to directly switch 50 pF LCD segment capacitances, ensuring reliable display operation across seasonal temperature extremes without derating the supply voltage.
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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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