Overview
The 74HC259D, produced by NXP USA Inc., is an 8-bit addressable latch integrated circuit. This device is part of the 74HC series and is known for its versatility and reliability in various digital logic applications. It features four distinct modes of operation: addressable latch mode, memory mode, 3-to-8 decoding or demultiplexing mode, and reset mode. This makes it highly adaptable for use in complex digital circuits where data storage and addressing are crucial.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | NXP USA Inc. |
| Logic Type | D-Type, Addressable |
| Package | 16-SOIC (0.154", 3.90mm Width) |
| Voltage - Supply | 2 V ~ 6 V |
| Propagation Delay | 18 ns |
| Output Current | ± 5.2 mA |
| Operating Temperature | -40°C ~ 125°C |
| Mounting Type | Surface Mount |
| ESD Protection | HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V, CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V |
Key Features
- Four Modes of Operation: Addressable latch mode, memory mode, 3-to-8 decoding or demultiplexing mode, and reset mode.
- CMOS Logic Levels: Compatible with CMOS logic levels, ensuring high noise immunity and low power consumption.
- Serial-to-Parallel Capability: Allows for the conversion of serial data to parallel data, enhancing data processing efficiency.
- Random (Addressable) Data Entry: Data can be written into any of the eight latches using the address inputs A0 to A3.
- Common Reset Input: A common reset input allows all outputs to be reset to a low state simultaneously.
- Easily Expandable: The device can be easily expanded to handle larger data sets by cascading multiple units.
- ESD Protection: High ESD protection levels ensure the device's reliability in harsh environments.
Applications
The 74HC259D is suitable for a wide range of applications, including:
- Automotive Systems: Qualified to the Automotive Electronics Council (AEC) standard Q100 (Grade 1), making it suitable for use in automotive electronics.
- Digital Logic Circuits: Ideal for use in digital logic circuits requiring data storage and addressing, such as in microcontrollers, embedded systems, and digital signal processing.
- Industrial Control Systems: Used in industrial control systems for data storage and retrieval in automated processes.
- Consumer Electronics: Found in various consumer electronics where digital data handling is necessary, such as in audio and video equipment.
Q & A
- What is the primary function of the 74HC259D?
The primary function of the 74HC259D is to act as an 8-bit addressable latch, allowing data to be stored and retrieved based on address inputs.
- What are the four modes of operation of the 74HC259D?
The four modes are addressable latch mode, memory mode, 3-to-8 decoding or demultiplexing mode, and reset mode.
- What is the supply voltage range for the 74HC259D?
The supply voltage range is from 2.0 V to 6.0 V.
- What is the propagation delay of the 74HC259D?
The propagation delay is 18 ns.
- What is the output current capability of the 74HC259D?
The output current capability is ± 5.2 mA.
- What are the operating temperature ranges for the 74HC259D?
The operating temperature ranges are from -40°C to +85°C and from -40°C to +125°C.
- Does the 74HC259D have ESD protection?
- Is the 74HC259D suitable for automotive applications?
- What package options are available for the 74HC259D?
The device is available in a 16-SOIC (SOT109-1) package.
- Can the 74HC259D be used as a decoder?
