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Encyclopedia Entry: 74AHCT259PW,112
Product Overview
Category
The 74AHCT259PW,112 belongs to the category of integrated circuits (ICs) and specifically falls under the family of logic ICs.
Use
This product is commonly used in digital systems for data storage and manipulation. It serves as an 8-bit addressable latch with three-state outputs.
Characteristics
- High-speed operation
- Low power consumption
- Wide operating voltage range
- Three-state outputs for bus-oriented applications
Package
The 74AHCT259PW,112 is available in a standard TSSOP (Thin Shrink Small Outline Package) package. This package offers a compact size and efficient heat dissipation.
Essence
The essence of the 74AHCT259PW,112 lies in its ability to store and control data in digital systems, providing flexibility and efficiency in addressing and outputting information.
Packaging/Quantity
The product is typically packaged in reels or tubes, containing a quantity of 2500 units per reel/tube.
Specifications
- Supply Voltage Range: 4.5V to 5.5V
- Input Voltage Range: 0V to VCC
- Output Voltage Range: 0V to VCC
- Operating Temperature Range: -40°C to +125°C
- Logic Family: AHCT
- Number of Bits: 8
- Output Type: Three-state
Detailed Pin Configuration
The 74AHCT259PW,112 has a total of 16 pins, each serving a specific function:
- GND: Ground
- D0: Data input bit 0
- D1: Data input bit 1
- D2: Data input bit 2
- D3: Data input bit 3
- D4: Data input bit 4
- D5: Data input bit 5
- D6: Data input bit 6
- D7: Data input bit 7
- OE: Output enable
- LE: Latch enable
- A0: Address input bit 0
- A1: Address input bit 1
- A2: Address input bit 2
- VCC: Power supply
- Q0-Q7: Output bits 0-7
Functional Features
The 74AHCT259PW,112 offers the following functional features:
- Addressable Latching: The latch enables the storage of data based on the address inputs.
- Three-State Outputs: The three-state outputs allow for bus-oriented applications, enabling multiple devices to share a common data bus.
- Output Enable Control: The output enable pin (OE) controls the activation of the outputs, providing flexibility in data retrieval.
Advantages and Disadvantages
Advantages
- High-speed operation allows for efficient data processing.
- Low power consumption contributes to energy efficiency.
- Wide operating voltage range enhances compatibility with various systems.
- Three-state outputs facilitate bus-oriented applications.
Disadvantages
- Limited number of addressable bits (8 bits).
- Requires external control signals for proper functioning.
Working Principles
The 74AHCT259PW,112 operates based on the principles of digital logic. It utilizes latches to store data and provides addressability through the address inputs. The latch enable (LE) signal controls when the data is stored, while the output enable (OE) signal determines when the stored data is accessible on the outputs.
Detailed Application Field Plans
The 74AHCT259PW,112 finds application in various digital systems, including but not limited to: - Microcontrollers - Data storage systems - Addressable memory units - Communication devices
Detailed and Complete Alternative Models
Some alternative models that offer similar functionality to the 74AHCT259PW,112 include: - 74HC259: A CMOS logic IC with similar latch functionality. - CD74ACT259: An advanced CMOS logic IC with addressable latch features.
These alternative models can be considered based on specific system requirements and compatibility.
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Перечислите 10 распространенных вопросов и ответов, связанных с применением 74AHCT259PW,112 в технических решениях.
Sure! Here are 10 common questions and answers related to the application of 74AHCT259PW,112 in technical solutions:
Q: What is the function of the 74AHCT259PW,112? A: The 74AHCT259PW,112 is an 8-bit addressable latch with three-state outputs. It can store and output data based on the control signals.
Q: What is the operating voltage range for the 74AHCT259PW,112? A: The operating voltage range for this IC is typically between 4.5V and 5.5V.
Q: How many addressable latches are there in the 74AHCT259PW,112? A: The 74AHCT259PW,112 has 8 addressable latches, allowing you to store and manipulate 8 bits of data.
Q: Can I use the 74AHCT259PW,112 in a high-speed application? A: Yes, the 74AHCT259PW,112 is designed for high-speed operation and can be used in applications that require fast data storage and retrieval.
Q: What is the maximum output current of the 74AHCT259PW,112? A: The maximum output current per pin is typically around 8mA.
Q: Can I cascade multiple 74AHCT259PW,112 ICs together? A: Yes, you can cascade multiple 74AHCT259PW,112 ICs to increase the number of addressable latches and expand your data storage capacity.
Q: Does the 74AHCT259PW,112 have any built-in protection features? A: Yes, it has built-in ESD protection on all inputs and outputs, which helps to safeguard the IC from electrostatic discharge.
Q: What is the power consumption of the 74AHCT259PW,112? A: The power consumption of this IC depends on various factors such as the operating frequency and load conditions. It is typically low in power consumption.
Q: Can I use the 74AHCT259PW,112 in both digital and analog applications? A: No, the 74AHCT259PW,112 is primarily designed for digital applications and may not be suitable for analog signal processing.
Q: Are there any recommended application circuits available for the 74AHCT259PW,112? A: Yes, the datasheet of the 74AHCT259PW,112 provides example application circuits that can help you understand how to use this IC in different scenarios.
Please note that these answers are general and may vary depending on specific datasheets and manufacturer recommendations.