CD74HC4511PWR

Product Overview

• Category: Integrated Circuit (IC)
• Use: BCD to 7-segment latch/decoder/driver
• Characteristics: High-speed CMOS logic, low power consumption
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: Converts binary-coded decimal (BCD) input into a 7-segment display output
• Packaging/Quantity: Tape and reel packaging, 2500 units per reel

Specifications

The CD74HC4511PWR has the following specifications:

• Supply Voltage Range: 2V to 6V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Maximum Operating Frequency: 25 MHz
• Maximum Propagation Delay: 20 ns
• Maximum Quiescent Current: 4 µA

Pin Configuration

The CD74HC4511PWR has a total of 16 pins. The pin configuration is as follows:

1. A
2. B
3. C
4. D
5. LT
6. BI/RBO
7. a
8. b
9. c
10. d
11. e
12. f
13. g
14. VCC
15. GND
16. LE

Functional Features

• BCD to 7-segment conversion: The CD74HC4511PWR can convert a 4-bit binary-coded decimal (BCD) input into the corresponding 7-segment display output.
• Latch functionality: The latch enable (LE) pin allows the input data to be latched and held until a new input is received.
• Decoder and driver: The IC decodes the BCD input and drives the appropriate segments of a 7-segment display to represent the input value.

Advantages and Disadvantages

Advantages: - High-speed operation: The CD74HC4511PWR is capable of operating at frequencies up to 25 MHz, making it suitable for applications requiring fast response times. - Low power consumption: The IC consumes very low quiescent current (4 µA), resulting in energy-efficient operation. - Compact package: The TSSOP package offers a small form factor, allowing for space-saving designs.

Disadvantages: - Limited input range: The CD74HC4511PWR accepts BCD inputs only, limiting its usability for applications requiring non-BCD inputs. - Lack of built-in display: The IC provides the necessary decoding and driving functions but does not include a built-in 7-segment display.

Working Principles

The CD74HC4511PWR works by taking a 4-bit BCD input (A, B, C, D) and converting it into the corresponding output signals (a, b, c, d, e, f, g) required to drive a 7-segment display. The latch enable (LE) pin allows the input data to be latched and held until a new input is received. The IC internally decodes the BCD input and activates the appropriate segments of the display based on the input value.

Detailed Application Field Plans

The CD74HC4511PWR can be used in various applications that require BCD to 7-segment conversion, such as:

1. Digital clocks
2. Counters and timers
3. Scoreboards and displays
4. Industrial control panels
5. Instrumentation and measurement devices

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the CD74HC4511PWR are:

1. CD4511BE: DIP (Dual In-line Package) version of the IC
2. SN74LS47N: BCD to 7-segment decoder/driver with open collector outputs
3. CD4511BCN: BCD to 7-segment latch/decoder/driver with buffered inputs

These alternative models can be considered based on specific requirements, package preferences, or availability.

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