Overview of Texas Instruments CD74HCT4543E
The CD74HCT4543E is a high-speed silicon-gate CMOS device from Texas Instruments designed to interface between a digital system and a seven-segment display. This integrated circuit is particularly suitable for implementing BCD-to-seven-segment decoders/drivers in a variety of applications where reliability and performance are critical.
Key Features
- Logic Type: BCD to 7-Segment Latch/Decoder/Driver
- Supply Voltage Range: 4.5V to 5.5V
- Operating Temperature: -55°C to 125°C
- Output Current: Capable of driving common cathode LEDs and incandescent indicators directly
- Logic Family: HCT
- Mounting Type: Through Hole
- Package / Case: PDIP-16
Performance Characteristics
The CD74HCT4543E is designed to be compatible with the high-speed CMOS logic family. It has a typical propagation delay time of 18ns and a low power consumption, which is ideal for battery-powered and energy-efficient designs. Its latch storage capability allows the BCD inputs to be stored, while the seven-segment outputs remain stable.
Applications
This versatile decoder/driver can be used in a wide range of applications that require BCD-to-seven-segment decoding or driving capabilities. Common applications include:
- Digital clocks and timers
- Instrumentation displays
- Calculator displays
- Electronic meters
- Other consumer electronics with numeric displays
Quality and Reliability
Texas Instruments is known for its commitment to quality and reliability, and the CD74HCT4543E is no exception. It is designed to meet the stringent requirements of industrial and commercial applications, ensuring long-term performance and stability.
Availability
The CD74HCT4543E is widely available in a PDIP-16 package and can be sourced through Texas Instruments' extensive distribution network. Its through-hole mounting design ensures ease of integration into existing and new designs alike.
