on October 15th 2,269

Comprehensive Guide to the CD4511BE: BCD to 7-Segment Decoder with Pinout, Equivalent, Applications, and Datasheet

The CD4511BE is a versatile BCD (Binary Coded Decimal) to 7-segment decoder, commonly used in a wide range of display applications. In this article, we dive deep into its features, from understanding its datasheet and pin configuration to exploring applications and circuit designs. Whether you're looking to enhance your knowledge of display drivers or seeking practical circuit integration tips, this comprehensive guide to the CD4511BE will provide you with the insights needed to effectively leverage its capabilities in modern electronics projects.

Catalog

CD4511BE Overview

The CD4511BE, an adaptable BCD to 7-segment LED latch decoder driver, is encapsulated in a 16-pin DIP CMOS package. This component uniquely merges CMOS logic with NPN bipolar transistor outputs, which enhances its performance in a multitude of display applications.

The integration of CMOS logic with NPN bipolar transistor outputs in the CD4511BE ensures minimal power consumption while amplifying noise resistance. It adeptly sources up to 25mA for driving LEDs and similar displays. Lamp test inputs facilitate straightforward testing of each display segment. This feature guarantees that the segments are operational without requiring complex setups. The blanking input is a valuable tool for manipulating the display’s intensity. It enables brightness adjustments to suit various environmental lighting conditions. This flexibility proves beneficial in both indoor and outdoor settings. The latch enable inputs are designed to retain BCD codes, ensuring stable output despite fluctuating input signals.

This functionality minimizes flickering and promotes consistent display performance. A notable strength of the CD4511BE is its proficiency in multiplexing several signals and managing multiple displays concurrently. This capability streamlines the circuit design and reduces the component count, thereby simplifying its integration in both consumer electronics and industrial applications. The CD4511BE is offered in several package formats, including hermetic, plastic DIP, small-outline, and thin-shrink small-outline. These diverse packaging options guarantee compatibility with various design requirements, from compact handheld devices to expansive industrial control panels.

CD4511BE Pinout

Pin Name	Pin #	Type	Description
VDD	16	Power	Supply Voltage (+3 to +15V)
GND	8	Power	Ground (0V)
a-f	9-15	Output	Outputs for the 7-segment display
D0-D3	7, 1, 2, 6	Input	4-bit data input
LT	3	Input	Lamp Test. Turns on all segments when LOW.
BL	4	Input	Blanking Test. Turns off all segments when LOW.
LE	5	Input	Latch Enable. Stores the current state when HIGH.

CAD Models of CD4511BE

Symbol

Footprint

3D Models

Specifications of CD4511BE

Type	Parameter
Lifecycle Status	ACTIVE (Last Updated: 2 days ago)
Factory Lead Time	8 Weeks
Contact Plating	Gold
Mount	Through Hole
Mounting Type	Through Hole
Number of Pins	16
Weight	951.693491mg
Operating Temperature	-55°C~125°C
Packaging	Tube
JESD-609 Code	e4
Part Status	Active
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Number of Terminations	16
ECCN Code	EAR99
Voltage - Supply	3V~18V
Terminal Position	DUAL
Number of Functions	1
Supply Voltage	5V
Base Part Number	CD4511
Pin Count	16
Operating Supply Voltage	3.3V
Polarity	Non-Inverting
Supply Voltage-Min (Vsup)	3V
Configuration	7 Segment
Number of Channels	4
Interface	BCD
Operating Supply Current	40nA
Load Capacitance	50pF
Power Dissipation	500mW
Propagation Delay	1.32 μs
Quiescent Current	100μA
Turn On Delay Time	1.32 μs
Logic Function	Decoder, Inverter, Latch
Number of Inputs	4
Logic IC Type	Seven Segment Decoder/Driver
Number of Gates	1
Display Type	LED
Input Capacitance	5pF
Low Level Output Current	4.2mA
Power Supply Current-Max (ICC)	0.3mA
Number of Output Lines	7
Input Conditioning	Latched
Height	5.08mm
Length	19.3mm
Width	6.35mm
Thickness	3.9mm
REACH SVHC	No SVHC
Radiation Hardening	No
RoHS Status	RoHS3 Compliant
Lead Free	Lead Free

Features of CD4511BE

Feature	Description
High output sourcing capability	Up to 25mA
Supply voltage range	From 3V to 18V
Input latches for BCD code storage	Provides storage for BCD input
Tested quiescent current	100% tested at 20V
Maximum input current	1µA at 18V (full package temperature range), 100nA at 18V (25°C)
Parametric ratings	5V, 10V, and 15V
Operating temperature range	-55°C to 125°C

Chip Dimension

Block Diagram of CD4511BE

Applications of CD4511BE

LED Display Drivers

The CD4511BE is predominantly utilized to drive common-cathode LED displays. Its ability to interpret BCD input and convert it into a corresponding 7-segment display finds its place in various devices like digital clocks, calculators, and digital meters. Incorporating the CD4511BE into these devices enhances not just readability but also operational performance, boasting clear and precise output. This specific application capitalizes on the chip's proficient decoding capabilities, which simplify the interfacing of multiple 7-segment displays.

Multiplexing

Within the world of multiplexing, the CD4511BE optimizes operations by slimming down the number of pins required to manage multiple displays. This is mostly beneficial in systems where space and interface limitations restrict the number of available connecting lines. The chip streamlines connectivity for multipurpose display boards, ensuring that numerous display units operate seamlessly in tandem, thereby enriching your experience with synchronized and clear visual information.

Incandescent Display Control

When managing incandescent displays, the CD4511BE showcases laudable versatility. Its robust output capabilities guarantee that the incandescent segments receive consistent and reliable signals, making it advantageous in settings where legacy systems are in use or where resilience to high ambient conditions is dominant. The reliability of this chip ensures long-term, stable operation, even when faced with the varying electrical characteristics of incandescent displays.

Low-Voltage Fluorescent Displays

The CD4511BE excels in applications involving low-voltage fluorescent displays. The chip’s competence in handling diverse voltage levels without compromising display quality makes it ideal for battery-operated devices and energy-efficient display systems. This flexibility not only underlines its suitability for low-power consumption applications but also emphasizes its compatibility with different display types, broadening its application in various electronic designs.

Alternatives of CD4511BE

CD4511BF3A

CD4511BF

Manufacturer of CD4511BE

Texas Instruments Inc., headquartered in Dallas, Texas, stands as an influential force in the American semiconductor landscape. It excels in producing analog chips and embedded processors. Together, these products generate over 80% of the company's revenue. This substantial contribution has propelled Texas Instruments to be among the top ten semiconductor firms worldwide.

Texas Instruments fosters a robust reputation in the semiconductor industry. It has earned this through an unwavering commitment to innovation and quality. Its analog and embedded processing products find applications in various sectors, from consumer electronics to industrial equipment. Decades of consistent, high-performance solutions have cemented enduring relationships with clients.

The technological prowess of Texas Instruments is illustrated through its sophisticated product offerings. The CD4511BE is a prime example of the company's skill in crafting integrated circuits that streamline complex electronic functions. This product garners admiration for its efficiency and functionality in digital display applications, highlighting Texas Instruments' pioneering role in semiconductor technology.

Package of CD4511BE

Package Outline

Plastic Dual-in-line Package

Dimensions of CD4511BE

Dimension	Value
Height	5.08 mm
Length	19.3 mm
Thickness	3.9 mm
Width	6.35 mm

Implementing the CD4511BE

To bring the CD4511BE into operation efficiently, initiate by connecting the VDD pin to the power supply's positive side and the GND pin to the ground. This integrated circuit (IC) can function within a voltage range of 3V to 15V, catering to diverse application needs.

Binary-Coded Decimal Inputs: The CD4511BE is designed to accept binary-coded decimal (BCD) inputs through pins D0 to D3. These inputs define the digit displayed on the 7-segment display, ensuring the accurate portrayal of data. In manufacturing settings, BCD inputs are integral to automated testing systems. These inputs facilitate swift and precise data visualization on production lines, preventing delays and errors.

7-Segment Display Outputs: The IC’s output pins (a to g) connect to corresponding segments on the 7-segment display. This orchestrates the illumination of specific segments for accurate decimal representation. You can typically incorporate current-limiting resistors for each output pin. This practice not only protects the display LEDs but also prolongs their functionality, optimizing both performance and durability.

Segment Test with LT Pin: The LT (Lamp Test) pin is key for a comprehensive segment test. When this pin is set to LOW, all display segments activate, allowing a thorough functionality check. During the prototype phase, testing segments via the LT pin is required. This step identifies any malfunctioning LEDs, enabling timely replacements before embarking on more intricate integration processes.

Brightness Control and PWM with BL Pin: Utilizing the BL (Blanking) pin with Pulse Width Modulation (PWM) techniques can effectively manage display brightness. Setting the BL pin to LOW extinguishes all segments, demonstrating both on/off control and brightness modulation capabilities. In consumer electronics, BL pin-based PWM adjustments are prevalent. This adaptability allows displays to harmonize with varying ambient light, significantly improving your satisfaction.

Data Storage with LE Pin: The LE (Latch Enable) pin is used to store the displayed value. When the LE pin is HIGH, the display output is retained despite input changes. Setting it to LOW resumes normal operation where the display dynamically reflects input variations. Leveraging the LE pin is a common practice in digital clocks and similar applications. This ensures a stable display output, even with fluctuating input signals, enhancing precision and reliability.

Comparable Specifications

Part Number	Manufacturer	Package / Case	Number of Inputs	Number of Pins	Logic Function	Number of Output Lines	Propagation Delay	Low Level Output Current	Supply Voltage
CD4511BE	Texas Instruments	16-DIP (0.300, 7.62mm)	4	16	Decoder, Inverter, Latch	7	1.32 μs	4.2 mA	5 V
CD74HC138E	Texas Instruments	16-DIP (0.300, 7.62mm)	3	16	Decoder, Demultiplexer, Demux	8	45 ns	-	5 V
SN74HCT138N	Texas Instruments	16-DIP (0.300, 7.62mm)	3	16	Decoder, Demultiplexer	-	45 ns	-	5 V
MC74HCT138ANG	ON Semiconductor	16-DIP (0.300, 7.62mm)	3	16	Decoder, Demultiplexer	-	45 ns	-	5 V
SN74HC138N	Texas Instruments	16-DIP (0.300, 7.62mm)	3	16	Decoder, Demultiplexer	-	30 ns	-	4.5 V

Datasheet PDF

CD4511BE Datasheets:

Cylindrical Battery Holders.pdf

CD74HC138E Datasheets:

Cylindrical Battery Holders.pdf

SN74HCT138N Datasheets:

Cylindrical Battery Holders.pdf

SN54HCT138, SN74HCT138.pdf

MC74HCT138ANG Datasheets:

Cylindrical Battery Holders.pdf

SN74HC138N Datasheets:

SN54HC138, SN74HC138.pdf

Frequently Asked Questions [FAQ]

1. What is a BCD to 7-Segment Driver?

A BCD to 7-segment driver translates Binary-Coded Decimal (BCD) inputs into signals that activate the appropriate segments of a 7-segment display. This process allows for the visual representation of numerical information, making it requisite in devices such as digital clocks and instrumentation panels, where accurate and efficient numeric displays are required.

2. What package is the CD4511BE?

The CD4511BE is housed in a Dual In-line Package (DIP-16). This packaging standard makes installation and integration into various electronic circuits straightforward. Its robust design offers ease of handling and secure connectivity, traits that ensure reliability in a multitude of applications.

3. What does CD4511BE do?

The CD4511BE operates as a driver for LEDs and other display devices by converting digital input signals into electrical outputs, thereby illuminating specific display segments. This function is active in devices that require precise numerical data representation. The integration of such a driver plays a remarkable role in achieving display accuracy and reliability, which are highly valued in consumer electronics and industrial applications.

4. What’s the recommended temperature range for CD4511BE?

The recommended operating temperature for the CD4511BE spans from -55°C to +125°C. This wide range highlights the component's adaptability and suitability for diverse environmental conditions, from the coldest settings to intense heat. You can often choose components like the CD4511BE for projects that demand consistent performance across varying temperatures.

5. How many output lines does CD4511BE have?

The CD4511BE features seven output lines. Each output drives an individual segment of a 7-segment display. This architecture is major for designing systems that require clear and efficient digital readouts, enhancing both interaction and data interpretation.