CD4543 BCD-to-7-Segment Latch Decoder Driver DIP-16 (CD4543 DIP IC)
The CD4543 is a high-voltage CMOS integrated circuit designed to function as a BCD-to-7-segment latch decoder and driver. Unlike the CD4511, the CD4543 is capable of driving both Liquid Crystal Displays (LCD) and Light Emitting Diode (LED) displays, including both common-anode and common-cathode configurations, thanks to its phase input control.
This IC is primarily used in digital clocks, meters, and low-power handheld instruments where visual numerical output is required. It is an essential component for Arduino electronics projects in India that involve interfacing microcontrollers with reflective or backlit LCDs as well as standard 7-segment LED arrays.
Key Features
- Versatile driving capability for LCD, LED, and incandescent displays
- Internal 4-bit storage latch for BCD input data
- Phase input for reversing display polarity (ideal for LCDs)
- Blanking input for display intensity control or power saving
- Wide operating supply voltage range for diverse power systems
- Low power consumption suitable for battery-operated devices
- High noise immunity greater than 45 percent
- Standardized symmetrical output characteristics
Specifications
- IC Type = BCD to 7-Segment Decoder
- Logic Family = CD4000
- Supply Voltage = 3V to 18V
- Package Type = DIP
- Number of Pins = 16
- Mounting Type = Through-Hole
- Display Types = LCD, LED (Common Anode/Cathode)
- Operating Temperature = -55 to 125 degrees Celsius
Interfaces
- A, B, C, D = BCD Data Inputs
- a, b, c, d, e, f, g = 7-Segment Display Outputs
- LE = Latch Enable (Active High)
- BI = Blanking Input (Active High)
- PH = Phase Input (LCD/LED Polarity Select)
- VSS = Ground (0V)
- VDD = Positive Supply Voltage
- NC = No Connection
