CD4543 - BCD to 7 Segment Decoder IC
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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)
- BCD to 7-segment decoder/driver
- Supports LCD and LED displays
- Single power supply operation (3V–15V)
- 16-pin DIP package
- Display blanking capability
- Compatible with CD4056 (with pin 7 to VSS)
- Low power consumption
- Latch functionality for stable display
- Direct microcontroller interface
- Wide voltage range compatibility
- Robust for industrial and educational use
| 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 |
What is the CD4543 IC used for?
The CD4543 is a BCD-to-7-segment decoder/driver used to control LCD and LED displays in digital clocks, instruments, and calculators.
Can the CD4543 drive LED displays?
Yes, it can drive LED, LCD, incandescent, and fluorescent displays with proper PHASE input configuration.
Is the CD4543 compatible with Arduino?
Yes, it works with Arduino, Raspberry Pi, and other microcontrollers for 7-segment display control.
What power supply does the CD4543 require?
It operates on a single power supply, typically 3V to 15V, making it easy to integrate into most circuits.
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About CD4543 - BCD to 7 Segment Decoder IC by Iotcart
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 …
Categorised under: Clock & Timer IC› 7-segment LED Display› Integrated Circuits