CD4043BE

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CD4043BE

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R-S LATCH

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規格

屬性 價值
Package Tube
Series 4000B
ProductStatus Obsolete
LogicType S-R Latch
Circuit 1:1
OutputType Tri-State
Voltage-Supply 3V ~ 18V
IndependentCircuits 4
DelayTime-Propagation 50ns
Current-OutputHighLow 6.8mA, 6.8mA
OperatingTemperature -55°C ~ 125°C
MountingType Through Hole
Package/Case 16-DIP (0.300, 7.62mm)

概述

Description

The CD4043BE is a quad 3-state R/S latch integrated circuit, commonly used in digital electronics. It consists of four separate latch circuits, each featuring an R (reset) and S (set) input, along with complementary Q and Q' (not-Q) outputs. The "3-state" aspect refers to the output capabilities, where each latch can output a logical high, low, or high-impedance state based on the input conditions and an enable input.
This IC is part of the 4000 series of CMOS logic devices, known for their wide power supply range (3V to 15V) and low power consumption. The CD4043BE is built using CMOS technology, ensuring high noise immunity and low static power consumption. It is generally used in applications requiring temporary data storage, state holding, or simple memory functions, where the stored data needs to be retained until an explicit reset or set signal is received.
The CD4043BE is available in a 16-pin dual in-line package (DIP) and is compatible with TTL devices, making it versatile for various digital circuit applications.

Equivalent

The CD4043BE is a quad 3-state NOR R/S latch. Equivalent products include:
1. MC14043B by ON Semiconductor
2. HCF4043B by STMicroelectronics
3. TC4043B by Toshiba
4. NTE4043B by NTE Electronics
These are similar in function and generally interchangeable, but always check the datasheets to ensure full compatibility with your specific application.

Features

The CD4043BE is a quad cross-coupled CMOS NAND latch with 3-state outputs. It incorporates four independent latches, each with a pair of complementary outputs and a pair of inputs. Key features include:
1. CMOS Technology: Offers low power consumption and high noise immunity.
2. Logic Type: Operates as a NAND latch, providing memory storage capabilities.
3. 3-State Outputs: Allows outputs to be in one of three states: high, low, or high-impedance, useful for bus-oriented applications.
4. Wide Supply Voltage Range: Typically operates from 3V to 15V, accommodating various power supply levels.
5. Latch Enable Inputs: Each latch is equipped with an enable input for controlled data storage.
6. Low Propagation Delay: Ensures quick data processing within digital circuits.
7. Fan-Out Capability: Can drive multiple TTL loads.
8. Temperature Range: Suitable for operation in standard commercial temperature ranges.
These features make the CD4043BE a versatile component for use in digital logic circuits, particularly where temporary data storage and control logic are required.

Pinout

The CD4043BE is a CMOS quad 3-state R/S latch IC. It has 16 pins and serves as a versatile logic device for digital circuit applications. The pin configuration and functions are as follows:
1. Pins 1-3, 4-6, 7-9, 10-12: These are the input and output pins for the four latches (Latch 1: Pins 1-3, Latch 2: Pins 4-6, Latch 3: Pins 7-9, Latch 4: Pins 10-12). Each latch has a Set (S) and a Reset (R) input, along with a Q output.
2. Pin 13 (Enable): Controls the state of the Q outputs. When Enable is low, the outputs are in a high-impedance state.
3. Pin 14 (VDD): Power supply pin for the IC.
4. Pin 15 (Common Reset): Resets all latches when activated.
5. Pin 16 (VSS): Ground pin for the IC.
The CD4043BE is used in applications requiring memory storage, data latching, and digital logic interfacing.

Manufacturer

The CD4043BE is a part manufactured by Texas Instruments. Texas Instruments (TI) is an American technology company that designs and manufactures semiconductors and various integrated circuits, which it sells to electronics designers and manufacturers globally. It is one of the largest semiconductor companies in the world and specializes in developing analog chips and embedded processors. TI’s products are used in a wide range of applications, including industrial, automotive, personal electronics, and communications equipment. The company is well-known for its focus on innovation and efficiency in the semiconductor industry.

Application

The CD4043BE is a CMOS quad latch that is commonly used in digital circuits for temporary data storage and data synchronization tasks. Its application areas include:
1. Data Storage: Holding data temporarily for processing in digital systems.
2. Data Synchronization: Aligning data timing in sequential circuits.
3. Control Systems: Implementing control logic in embedded systems and robotics.
4. Signal Routing: Multiplexing and demultiplexing signals in communication systems.
5. State Machines: Forming the basis for simple state machines in digital design.
6. Display Systems: Driving displays by latching data for stable output.
These latches are valued for their low power consumption, high noise immunity, and wide voltage range operation.

Package

The CD4043BE is a quad NOR R/S latch IC with a 16-pin dual in-line package (DIP). It features four latches with individual set and reset inputs, commonly used for storing data in various digital circuits.

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