Nexperia USA Inc.
Imej mungkin representasi.
Lihat spesifikasi untuk butiran produk.
74HCT259PW,112
Lihat Butiran Helaian data

74HCT259PW,112

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Data storage and retrieval
  • Characteristics: High-speed operation, low power consumption
  • Package: TSSOP (Thin Shrink Small Outline Package)
  • Essence: 8-bit addressable latch with 3-state outputs
  • Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

  • Supply voltage: 2.0V to 6.0V
  • Input voltage: -0.5V to VCC + 0.5V
  • Output voltage: -0.5V to VCC + 0.5V
  • Operating temperature range: -40°C to +125°C
  • Output current: ±6mA
  • Propagation delay: 18ns (typical)

Pin Configuration

The 74HCT259PW,112 has a total of 16 pins:

  1. GND (Ground)
  2. QA (Output A)
  3. QB (Output B)
  4. QC (Output C)
  5. QD (Output D)
  6. QE (Output E)
  7. QF (Output F)
  8. QG (Output G)
  9. QH (Output H)
  10. MR (Master Reset)
  11. SH/LD (Shift/Load)
  12. CLK (Clock)
  13. A0 (Address bit 0)
  14. A1 (Address bit 1)
  15. A2 (Address bit 2)
  16. VCC (Supply voltage)

Functional Features

  • Addressable latch: Each output can be individually addressed and controlled.
  • 3-state outputs: The outputs can be in high impedance state, allowing multiple devices to share the same bus.
  • Master reset: Resets all outputs to a predefined state.
  • Shift/load control: Determines whether the latch is in shift or load mode.
  • Clock input: Controls the timing of data transfer.

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient data storage and retrieval. - Low power consumption makes it suitable for battery-powered devices. - 3-state outputs enable bus sharing and reduce the number of required pins.

Disadvantages: - Limited addressability (8 bits) may not be sufficient for certain applications. - Propagation delay of 18ns may be relatively high for some high-speed applications.

Working Principles

The 74HCT259PW,112 is an 8-bit addressable latch with 3-state outputs. It can store and retrieve data based on the address provided. The latch has a clock input that controls the timing of data transfer. When in shift mode, the latch shifts the data from one output to the next upon each clock pulse. In load mode, the latch stores the data present at the inputs upon a clock pulse. The outputs can be individually addressed and controlled, allowing for flexible data manipulation.

Detailed Application Field Plans

The 74HCT259PW,112 can be used in various applications, including but not limited to:

  1. Microcontrollers: Used for storing and retrieving data from external memory or peripherals.
  2. Communication systems: Enables addressable data buffering and routing.
  3. Industrial automation: Provides control and monitoring capabilities for multiple devices.
  4. Automotive electronics: Used in data logging, sensor interfacing, and control systems.
  5. Consumer electronics: Enables addressable data storage in devices such as TVs, set-top boxes, and gaming consoles.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the 74HCT259PW,112 are:

  1. SN74HC259N by Texas Instruments
  2. CD74HCT259E by Texas Instruments
  3. MC74HCT259AN by ON Semiconductor
  4. 74HC259D by NXP Semiconductors

These alternative models have comparable specifications and pin configurations, providing options for different sourcing preferences.

Word count: 529 words

Senaraikan 10 soalan dan jawapan biasa yang berkaitan dengan aplikasi 74HCT259PW,112 dalam penyelesaian teknikal

Sure! Here are 10 common questions and answers related to the application of 74HCT259PW,112 in technical solutions:

  1. Q: What is the function of the 74HCT259PW,112? A: The 74HCT259PW,112 is an 8-bit addressable latch with three-state outputs. It can be used to store and control data in digital circuits.

  2. Q: What is the maximum operating voltage for the 74HCT259PW,112? A: The maximum operating voltage for the 74HCT259PW,112 is 5.5V.

  3. Q: How many inputs does the 74HCT259PW,112 have? A: The 74HCT259PW,112 has a total of 11 inputs, including 8 data inputs, 2 address inputs, and 1 enable input.

  4. Q: Can the 74HCT259PW,112 be used as a multiplexer? A: No, the 74HCT259PW,112 is not designed to function as a multiplexer. It is primarily used as an addressable latch.

  5. Q: What is the output current capability of the 74HCT259PW,112? A: The 74HCT259PW,112 has a typical output current capability of 6mA.

  6. Q: Is the 74HCT259PW,112 compatible with TTL logic levels? A: Yes, the 74HCT259PW,112 is compatible with both CMOS and TTL logic levels.

  7. Q: Can I cascade multiple 74HCT259PW,112 chips together? A: Yes, you can cascade multiple 74HCT259PW,112 chips together to increase the number of addressable latches.

  8. Q: What is the power supply voltage range for the 74HCT259PW,112? A: The power supply voltage range for the 74HCT259PW,112 is typically between 4.5V and 5.5V.

  9. Q: Does the 74HCT259PW,112 have internal pull-up or pull-down resistors? A: No, the 74HCT259PW,112 does not have internal pull-up or pull-down resistors. External resistors may be required.

  10. Q: Can the 74HCT259PW,112 be used in high-speed applications? A: Yes, the 74HCT259PW,112 is capable of operating at high speeds, making it suitable for various applications including data storage and control circuits.

Please note that the answers provided here are general and may vary depending on specific datasheet specifications and application requirements.