CD4543BE CMOS BCD to 7-Segment Latch/Decoder/Driver IC PDIP-16
The CD4543BE is a CMOS integrated circuit designed to convert Binary Coded Decimal (BCD) input data into the appropriate signals required to drive a 7-segment display. It includes a built-in latch function that allows data storage, enabling stable display output even when the input signals change. This makes the device ideal for digital counters, measurement systems, and display interfaces where consistent numeric output is required.
With its wide operating voltage range and low power consumption, the CD4543BE is suitable for battery-powered and general-purpose digital applications. The device is specifically designed for driving common cathode LCD or LED displays and is housed in a standard 16-pin PDIP package, making it easy to use in through-hole PCB designs and prototyping environments.
Features:
- CMOS low-power operation.
- Built-in BCD to 7-segment decoding.
- Internal latch for data storage.
- Direct interface with common cathode displays.
- High noise immunity.
- Wide operating voltage range.
- Lamp test function for display checking.
- Blanking control to turn off display.
- Through-hole PDIP package for easy mounting.
Specifications:
| Parameter | Value |
|---|---|
| Model: | CD4543BE |
| Function: | BCD to 7-Segment Latch/Decoder/Driver |
| Logic Family: | CMOS 4000 Series |
| Package Type: | PDIP-16 |
| Mounting Type: | Through-Hole |
| Number of Inputs: | 4 (BCD) |
| Number of Outputs: | 7 Segment Outputs |
| Supply Voltage (VDD): | 3V to 18V |
| Operating Temperature: | -55°C to +125°C |
| Output Type: | CMOS Logic |
| Display Type Supported: | Common Cathode LCD/LED |
Pinout:
| Pin | Name | Description |
|---|---|---|
| 1 | LD | Latch Disaple |
| 2 | C | BCD Input |
| 3 | B | BCD Input |
| 4 | D | BCD Input |
| 5 | A | BCD Input |
| 6 | – | Phase |
| 7 | – | Blanking |
| 8 | VSS | Ground |
| 9 | a | 7-Segment Output |
| 10 | b | 7-Segment Output |
| 11 | c | 7-Segment Output |
| 12 | d | 7-Segment Output |
| 13 | e | 7-Segment Output |
| 14 | g | 7-Segment Output |
| 15 | f | 7-Segment Output |
| 16 | VDD | Supply Voltage |
Applications:
- Digital clocks and timers.
- Panel meters and measurement displays.
- Frequency counters.
- Industrial control displays.
- Microcontroller display interfaces.
- Consumer electronic numeric displays.
- Instrumentation and test equipment.
Packages:
- 1x CD4543BE CMOS BCD to 7-Segment Latch/Decoder/Driver IC PDIP-16.



Reviews
There are no reviews yet.