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CD4543 - BCD to 7 Segment Decoder IC

CD4543 - BCD to 7 Segment Decoder IC

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  • Display blanking of all illegal input combinations 
  • Latch storage of code
  • Capability of driving two low power TTL loads, two HTL loads, or one low power Schottky load over the full rated-temperature range
  • Pin-for-pin replacement for the CD4056B (with pin 7 tied to VSS)
  • Direct LED driving capability
  • 100% tested for quiescent current at 20 V
  • Maximum input current of 1 µA at 18 V over full package-temperature range; 100 nA at 18 V and 25°C
  • Noise margin (full package-temperature range) =
        1 V at VDD = 5 V
        2 V at VDD = 10 V
        2.5 V at VDD = 15 V
  • 5-V, 10-V, and 15-V parametric ratings
  • Meets all requirements of JEDEC Tentative Standard No. 13B, "Standard Specifications for Description of ’B’ Series CMOS Devices"

CD4543 - BCD to 7 Segment Decoder IC

The CD4543 IC is a BCD-to-seven segment latch/decoder/driver IC designed primarily for liquid-crystal display (LCD) applications. It is also capable of driving light-emitting diode (LED), incandescent, gas-discharge, and fluorescent displays. This device is functionally similar and serves as a direct replacement for the CD4056 when pin 7 is connected to VSS. It differs from the CD4056B in that it has a display blanking capability instead of a level-shifting function and requires only one power supply.

When the CD4056 is used in the level shifting mode, two power supplies are required. When the CD4543 is used for LCD applications, a square wave must be applied to the PHASE input and the backplane of the LCD device. For LED applications logic 1 is required at the PHASE input for common-cathode devices; logic 0 is required for common-anode devices (see truth table). The CD4543B is supplied in 16-lead dual-in-line plastic packages (E suffix), 16-lead small-outline packages (M, M96, MT, and NSR suffixes), and 16-lead thin shrink small-outline packages (PW and PWR suffixes).

Pinout:

Pinout of CD4543 - BCD to 7 Segment Decoder IC

Applications:

  • Instrument display driver
  • Dashboard display driver
  • Computer/calculator display driver
  • Timing device driver (clocks, watches, timers)

Package Includes:

  • 1 x IC - CD4543

Specifications:

Part number CD4543B
Technology Family CD4000
VCC (Min) (V) 3
VCC (Max) (V) 18
Bits (#) 7
Voltage (Nom) (V) 5, 10, 15
F @ nom voltage (Max) (MHz) 8
ICC @ nom voltage (Max) (mA) 0.3
tpd @ nom Voltage (Max) (ns) 400
IOL (Max) (mA) 1.5
IOH (Max) (mA) -1.5
Function Decoder
Type Standard
Operating temperature range (C) -55 to 125
Configuration 04:07
Digital input leakage (Max) (uA) 5
ESD CDM (kV) 0.75
ESD HBM (kV) 2

Shipping & Returns

  • All orders confirmed before 3 pm IST are shipped on the
    same day, barring rare pickup delays on holidays or disturbances
  • Delivery time in Metro cities is 1-3 days, Others it is
    3-7 days. It varies based on location, reliant on courier services
  • Return window: 7 days from receipt unless stated
    otherwise. No refunds/replacements after
  • Returns only for non-working/damaged products are accepted
  • Initiate return requests to our customer service team via Support ticket or contact us at +91-8123057137
  • Refunds are processed within 3-4 working days post inspection and approval.

For more details, please check our Shipping and Return Policy

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ADDITIONAL RESOURCES

1. What is CD4543 - BCD to 7 Segment Decoder IC?

  • The CD4543 is a BCD-to-seven-segment decoder primarily intended for liquid-crystal display (LCD) applications. It can also power light-emitting diodes (LED), incandescent, gas-discharge, and fluorescent displays.

2. Where can I use the CD4543 - BCD to 7 Segment Decoder IC? 

  • CD4543 is a BCD-to-seven segment latch/decoder/driver designed primarily for liquid-crystal display (LCD) applications.The CD4543 is used for LCD applications, Dashboard display driver, Computer/calculator display driver, and Timing device driver (clocks, watches, timers)