SN74LS259BNS

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SN74LS259BNS

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IC 8BIT ADDRESSBLE LATCH 16SO

  • ManufacturerTexas Instruments

  • Mfr. Part #SN74LS259BNS

  • In Stock8077

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Specifications

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Overview

Description

The SN74LS259BNS is an integrated circuit from the 74LS series, which are TTL (Transistor-Transistor Logic) devices. This particular IC functions as an addressable latch, commonly used in digital circuits to store data. It features a 3-to-8 line decoder/demultiplexer, combined with an 8-bit latch, allowing individual bits to be addressed and stored based on input signals.
Key features include:
- 3-to-8 decoder/demultiplexer configuration
- Eight latches for data storage
- High-speed TTL compatibility
- Enable and Clear inputs for control
- Low power consumption
Typical applications for the SN74LS259BNS include memory address decoding, data routing, and any digital system requiring multiple data paths to be controlled by a single addressable latch. This IC is useful in simplifying complex circuits by reducing the number of required interconnections. The device operates reliably within a standard TTL voltage range and is suitable for various digital electronics applications. Its compact form factor makes it ideal for integration into diverse electronic systems.

Equivalent

The SN74LS259BNS is an 8-bit addressable latch. Equivalent products include:
1. 74HC259: A high-speed CMOS version.
2. SN74HC259: Texas Instruments' CMOS variant.
3. CD4099: A similar CMOS latch with some differences in speed and voltage levels.
4. MC74HC259A: Motorola/Freescale's CMOS version.
5. NTE74LS259: NTE Electronics' equivalent.
Ensure compatibility in terms of electrical characteristics and pin configurations when substituting.

Features

The SN74LS259BNS is an 8-bit addressable latch with key features such as:
1. Addressable Latch: It offers the capability to latch data into one of eight outputs, determined by a 3-bit address input.
2. Data Storage: Capable of storing and maintaining output states independent of input logic levels using internal latches.
3. Low Power Dissipation: Designed with low power consumption in mind, suitable for applications requiring efficiency.
4. High-Speed Operation: Part of the LS family, it provides faster operation compared to standard TTL devices.
5. Tri-State Outputs: Offers the ability to disconnect outputs from the circuit for bus-oriented systems.
6. Clear Function: Includes a clear input to reset all latches to the '0' state rapidly.
7. Wide Supply Voltage Range: Operates typically within a range suitable for most TTL environments.
8. Compatibility: Interfaces easily with other TTL family ICs, providing versatility in digital systems.
These features make the SN74LS259BNS suitable for applications involving data storage and retrieval, memory addressing, and control tasks.

Pinout

The SN74LS259BNS is a 16-pin integrated circuit that functions as an 8-bit addressable latch. It is used to store data and is commonly utilized in digital systems for data storage, address decoding, and memory expansion. The device features a 3-to-8 line decoder that controls the storage of data in a set of latches.
Key features include:
- Eight individual latches, each capable of storing a single bit.
- A common enable input (E) to control the latching action.
- A clear input (CLR) to reset all latches to a known state.
- Three address inputs (A, B, C) for selecting one of the eight latches.
- A data input (D) for feeding the data to be stored.
- Outputs (Q0 to Q7) corresponding to the stored data in the respective latches.
The device is characterized by its low power consumption and fast switching times, making it suitable for various digital applications.

Manufacturer

The SN74LS259BNS is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and manufactures a wide range of electronic components and devices. Founded in 1930 and headquartered in Dallas, Texas, TI is known for its development and innovation in the semiconductor industry. It provides solutions for analog and embedded processing, catering to various markets, including automotive, industrial, personal electronics, communications equipment, and enterprise systems.

Application

The SN74LS259BNS is an 8-bit addressable latch commonly used in applications requiring digital data storage and retrieval. Its main application areas include:
1. Memory Addressing: Acts as a memory address decoder in microprocessor systems.
2. Data Routing: Facilitates data routing and management in digital circuits.
3. Control Systems: Used in control systems for selective data latching and control signal routing.
4. Signal Demultiplexing: Functions as a demultiplexer for distributing signals to multiple outputs.
5. Microcontroller Expansion: Expands I/O ports in microcontroller-based applications.
6. LED Display Control: Controls LED displays by selectively latching data to drive individual segments.
These capabilities make it suitable for a wide range of digital signal processing tasks.

Package

The SN74LS259BNS is a Digital IC, specifically a 8-Bit Addressable Latch. It comes in a surface-mount package type called SOP (Small Outline Package).

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