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HEF4543BT

Name: HEF4543BT
Rating: 4.7 (12 reviews)

Encoders, Decoders, Multiplexers & Demultiplexers

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概述

Description

The HEF4543BT is a CMOS BCD to 7-segment latch/decoder/driver, primarily used in digital display applications. It converts binary-coded decimal (BCD) inputs into the corresponding signals to drive a 7-segment display. The device features a latching capability, allowing it to hold the display value until updated by new inputs.
Key features include:
1. BCD Input: Accepts a 4-bit BCD input (0000 to 1001).
2. 7-Segment Output: Drives up to 7 segments of a display, controlling segments a through g.
3. Latching Function: Maintains the output state until a new input is provided.
4. Low Power Consumption: Suitable for battery-operated devices.
5. Wide Operating Voltage Range: Compatible with various power supply levels.
Common applications include digital clocks, counters, and other electronic devices requiring numerical display. The HEF4543BT is praised for its reliability and ease of integration into various circuits.

Features

The HEF4543BT is a BCD (Binary-Coded Decimal) to 7-segment decoder/driver designed for driving 7-segment displays. Key features include:
1. Input Configuration: It accepts a 4-bit BCD input (0-9) and can drive common cathode or common anode displays.
2. Output Configuration: It generates the appropriate signals to illuminate the segments of the display, allowing for easy visualization of decimal numbers.
3. Low Power Consumption: It operates at low power, making it suitable for battery-operated devices.
4. Wide Voltage Range: Typically operates within a supply voltage range of 3 to 15 volts.
5. Temperature Range: Reliable performance across a temperature range, often from -40°C to 125°C.
6. Easy Integration: Compatible with other TTL/CMOS logic devices, facilitating easier circuit design.
7. Direct Drive Capability: Capable of driving multiple display segments directly without additional components.
These features make the HEF4543BT an efficient choice for digital display applications in various electronic projects.

Package

The HEF4543BT is typically packaged in a dual in-line package (DIP) format, specifically an 18-pin DIP. This type of packaging is commonly used for integrated circuits, allowing for easy insertion into circuits and breadboards.

Pinout

The HEF4543BT is a BCD (Binary-Coded Decimal) to 7-segment latch/decoder/driver. It has a total of 16 pins (DIP-16 package).
Pin Functions:
1. Pin 1 (A): Input A (Least Significant Bit)
2. Pin 2 (B): Input B
3. Pin 3 (C): Input C
4. Pin 4 (D): Input D (Most Significant Bit)
5. Pin 5 (LE): Latch Enable input
6. Pin 6 (BLANK): Blanking input
7. Pin 7 (TEST): Test input (not typically used)
8. Pin 8 (GND): Ground
9. Pin 9 (g): Segment g output
10. Pin 10 (f): Segment f output
11. Pin 11 (e): Segment e output
12. Pin 12 (d): Segment d output
13. Pin 13 (c): Segment c output
14. Pin 14 (b): Segment b output
15. Pin 15 (a): Segment a output
16. Pin 16 (VDD): Supply voltage
The device converts BCD inputs into the corresponding signals to drive a 7-segment display.

Manufacturer

The HEF4543BT is a digital integrated circuit manufactured by NXP Semiconductors, which is a global semiconductor company based in the Netherlands. NXP was formed in 2006 when Philips spun off its semiconductor division. The company specializes in designing and manufacturing a variety of semiconductor products, including microcontrollers, processors, and analog ICs, focusing on automotive, industrial, and Internet of Things (IoT) applications. NXP is known for its innovation in secure connectivity and embedded processing solutions, making it a key player in the semiconductor industry.

Application

The HEF4543BT is a dual BCD to decimal decoder/driver used in various applications, including digital displays, counters, and multiplexing. It is commonly found in electronic devices requiring numeric representation, such as calculators, clocks, and scoreboards. The chip can also be utilized in automotive dashboards and industrial control systems for visual output of numerical data.

Equivalent

The HEF4543BT chip is a BCD to 7-segment latch/decoder/driver. Equivalent products include the CD4543, MC4543, and 74HC4543. These chips serve similar functions in converting BCD inputs to drive 7-segment displays. Always check specific datasheets for compatible features and characteristics.