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Encyclopedia Entry: 74AHCT259PW,118
Product Overview
Category
The 74AHCT259PW,118 belongs to the category of integrated circuits (ICs).
Use
This product is commonly used in digital electronics and serves as an 8-bit addressable latch with three-state outputs.
Characteristics
- High-speed operation
- Wide operating voltage range
- Low power consumption
- Schmitt-trigger action on all inputs
- Balanced propagation delays
- Direct interface with TTL levels
- Multiple package options available
Package
The 74AHCT259PW,118 is typically packaged in a TSSOP (Thin Shrink Small Outline Package) format.
Essence
The essence of this product lies in its ability to store and control data in digital systems efficiently.
Packaging/Quantity
The 74AHCT259PW,118 is usually sold in reels or tubes containing multiple units. The exact quantity may vary depending on the supplier.
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
Detailed Pin Configuration
- GND (Ground)
- D0 (Data Input 0)
- D1 (Data Input 1)
- D2 (Data Input 2)
- D3 (Data Input 3)
- D4 (Data Input 4)
- D5 (Data Input 5)
- D6 (Data Input 6)
- D7 (Data Input 7)
- OE (Output Enable)
- LE (Latch Enable)
- CLK (Clock Input)
- Q0 (Output 0)
- Q1 (Output 1)
- Q2 (Output 2)
- Q3 (Output 3)
- Q4 (Output 4)
- Q5 (Output 5)
- Q6 (Output 6)
- Q7 (Output 7)
- VCC (Supply Voltage)
Functional Features
- Addressable latch with three-state outputs
- Data inputs can be latched or transparently passed to the outputs
- Outputs can be disabled using the output enable (OE) pin
- Latch enable (LE) pin controls the latching of data inputs
- Clock input (CLK) synchronizes the latching operation
Advantages and Disadvantages
Advantages
- High-speed operation allows for efficient data handling
- Wide operating voltage range provides flexibility in various applications
- Low power consumption contributes to energy efficiency
- Schmitt-trigger action on all inputs ensures noise immunity
- Direct interface with TTL levels simplifies integration into existing systems
Disadvantages
- Limited number of outputs (8 bits)
- Requires external components for complete functionality
Working Principles
The 74AHCT259PW,118 operates by receiving data inputs (D0-D7) and storing them in internal latches. The latch enable (LE) pin controls the latching operation, while the clock input (CLK) synchronizes the process. The stored data can be either latched or transparently passed to the outputs (Q0-Q7). The output enable (OE) pin allows for disabling the outputs when necessary.
Detailed Application Field Plans
The 74AHCT259PW,118 finds applications in various digital systems, including but not limited to: - Address decoding circuits - Data multiplexing - Memory address selection - General-purpose data storage and control
Detailed and Complete Alternative Models
Some alternative models that offer similar functionality to the 74AHCT259PW,118 include: - SN74HC259N - CD74HCT259E - MC74HCT259AN
These alternatives can be considered based on specific requirements and availability.
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Καταγράψτε 10 συνήθεις ερωτήσεις και απαντήσεις που σχετίζονται με την εφαρμογή του 74AHCT259PW,118 σε τεχνικές λύσεις
Sure! Here are 10 common questions and answers related to the application of 74AHCT259PW,118 in technical solutions:
Q: What is the function of the 74AHCT259PW,118? A: The 74AHCT259PW,118 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,118? A: The operating voltage range for this IC is typically between 4.5V and 5.5V.
Q: How many inputs and outputs does the 74AHCT259PW,118 have? A: This IC has 8 inputs (A0-A7), 3 control inputs (G, C0, C1), and 8 outputs (O0-O7).
Q: Can the 74AHCT259PW,118 be used as a bidirectional buffer? A: No, this IC is not designed for bidirectional buffering. It is primarily used as an addressable latch.
Q: What is the maximum clock frequency supported by the 74AHCT259PW,118? A: The maximum clock frequency for reliable operation is typically around 100 MHz.
Q: Can I cascade multiple 74AHCT259PW,118 ICs together? A: Yes, you can cascade multiple ICs to increase the number of addressable latches in your system.
Q: What is the power consumption of the 74AHCT259PW,118? A: The power consumption depends on various factors such as supply voltage, clock frequency, and load conditions. Please refer to the datasheet for detailed information.
Q: Can the 74AHCT259PW,118 drive LEDs directly? A: Yes, the outputs of this IC can drive LEDs directly, but it is recommended to use current-limiting resistors to protect the LEDs.
Q: What is the typical propagation delay of the 74AHCT259PW,118? A: The typical propagation delay for this IC is around 10 ns.
Q: Is the 74AHCT259PW,118 compatible with other logic families? A: Yes, it is compatible with other CMOS logic families and can be used in mixed-logic systems.
Please note that these answers are general and may vary depending on specific application requirements. It is always recommended to refer to the datasheet and consult the manufacturer for detailed information.