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CD4543BM96
Texas Instruments
IC DRVR 7 SEGMENT 1 DIGIT 16SOIC
35461 Pcs New Original In Stock
LCD Driver 16-SOIC
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5.0 / 5.0
- (451 Ratings)
CD4543BM96
Product Overview
1249983
DiGi Electronics Part Number
CD4543BM96-DGManufacturer
Texas Instruments
CD4543BM96
Description
IC DRVR 7 SEGMENT 1 DIGIT 16SOICInventory
35461 Pcs New Original In Stock
LCD Driver 16-SOIC
CAD Models - PCB Symbols & Footprints
Quantity
Minimum 1
Minimum 1
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CD4543BM96 Technical Specifications
Category
Power Management (PMIC), Display Drivers
Packaging
Cut Tape (CT) & Digi-Reel®
Series
-
Product Status
Active
Display Type
LCD
Configuration
7 Segment
Interface
BCD
Digits or Characters
1 Digit
Current - Supply
40 nA
Voltage - Supply
3V ~ 18V
Operating Temperature
-55°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
16-SOIC (0.154", 3.90mm Width)
Supplier Device Package
16-SOIC
Base Product Number
CD4543
Datasheet & Documents
HTML Datasheet
CD4543BM96-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
CD4543BM96G4
TEXTISCD4543BM96
296-31539-2
CD4543BM96G4-DG
296-31539-1
2156-CD4543BM96
CD4543BM96E4-DG
CD4543BM96-DG
CD4543BM96E4
296-31539-6
Standard Package
2,500
Alternative Parts
PART NUMBER
MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
Un service après-vente d'une grande efficacité, et une livraison express en toute circonstance.
de desembre 02, 2025
問題発生時の対応が的確で、安心して取引を続けられます。
de desembre 02, 2025
Their logistics and support teams work efficiently to ensure my needs are met promptly.
de desembre 02, 2025
Every product I've purchased from DiGi Electronics performs flawlessly in my repair projects.
de desembre 02, 2025
I am a satisfied customer because they keep prices low and packaging eco-conscious.
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Frequently Asked Questions (FAQ)
Can the CD4543BM96 drive a common-anode 7-segment LCD display directly without additional components?
No, the CD4543BM96 is designed specifically for driving common-cathode or common-backplane LCDs and cannot directly drive common-anode displays. It outputs active-high segment signals referenced to the LCD’s backplane (VSS or VDD depending on configuration), so attempting to use it with a common-anode display will result in incorrect or no illumination. For common-anode applications, consider using a driver like the TI TLC59213 or adding external level-shifting circuitry, but this introduces complexity and defeats the purpose of a direct LCD interface.
What are the risks of using the CD4543BM96 in a battery-powered handheld device operating near its 3V lower supply limit?
Operating the CD4543BM96 near 3V—especially under temperature extremes or battery voltage sag—can compromise LCD contrast and refresh reliability. While the IC remains functional down to 3V, LCDs typically require stable AC drive waveforms with sufficient peak-to-peak voltage; insufficient headroom may cause ghosting or segments failing to turn off fully. Designers should include margin by using a regulated 3.3V supply or selecting an LCD with lower drive voltage requirements. Also, verify actual LCD datasheet compatibility, as many standard LCDs specify minimum 4–5V for proper operation.
Can I replace a legacy CD4543BE with the CD4543BM96 in an existing 12V industrial control panel design?
Yes, the CD4543BM96 is a direct functional and pin-compatible upgrade from the CD4543BE, with improved ESD protection and tighter process control. Both support 3V–18V operation and identical BCD input logic, so drop-in replacement is feasible. However, confirm that your PCB footprint matches the 16-SOIC package (3.90mm width), as the older DIP-16 version (CD4543BE) has different mechanical dimensions. Also, ensure your system meets the CD4543BM96’s MSL-1 handling requirements during rework to avoid moisture-related failures.
How does the CD4543BM96 handle floating BCD input pins in a noisy factory environment, and what mitigation strategies are recommended?
Floating BCD inputs on the CD4543BM96 can cause unpredictable segment activation due to CMOS-level sensitivity to noise, especially in electrically harsh environments. This may lead to phantom digits or erratic display behavior. To mitigate, always tie unused BCD inputs (A, B, C, D) to ground or VDD through 10kΩ pull-down/up resistors. Additionally, place a 100nF ceramic capacitor close to the VDD pin to suppress high-frequency noise, and consider shielding signal traces if routing near motor drives or relays.
Is the CD4543BM96 suitable for automotive dashboard applications requiring operation at 125°C ambient temperature?
While the CD4543BM96 is rated for operation up to 125°C junction temperature, sustained use at this limit—especially in an automotive under-hood environment—requires careful thermal design. The 16-SOIC package has limited thermal dissipation; at 125°C ambient, self-heating from even minimal supply current could push the junction beyond safe limits. TI does not qualify this part under AEC-Q100, so it lacks automotive-grade reliability validation. For mission-critical dashboards, consider automotive-qualified alternatives like the NXP PCF85134HL or implement active cooling and derating strategies if using the CD4543BM96 in non-safety-critical zones.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
CD4543BM96 CAD Models
Texas Instruments CD4543BM96 PCB symbols & footprints
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