Overview
The 74HCT573DB,112 is an octal D-type transparent latch with 3-state outputs, manufactured by Nexperia (formerly part of NXP Semiconductors). This device is designed to provide high-speed and low-power solutions for various digital circuit applications. It features latch enable (LE) and output enable (OE) inputs, allowing for flexible control over data storage and output states. The 74HCT573DB,112 is part of the 74HCT series, which is compatible with TTL (Transistor-Transistor Logic) input levels, making it versatile for use in a wide range of microprocessor and microcomputer systems.
Key Specifications
| Parameter | Value | Description |
|---|---|---|
| Logic Type | D-Type Transparent Latch | Octal D-type latch with 3-state outputs |
| Input Levels | TTL | Compatible with TTL input levels |
| Supply Voltage Range | 2.0 V to 6.0 V | Wide supply voltage range for flexibility |
| Output Type | Tri-State | 3-state non-inverting outputs for bus-oriented applications |
| Propagation Delay Time | 17 ns | High-speed operation |
| Output Current (High/Low) | 6 mA / 6 mA | Current capability of the outputs |
| Operating Temperature Range | -40°C to +125°C | Wide operating temperature range |
| Package Type | 20-SSOP (0.209", 5.30mm Width) | Surface mount package |
| ESD Protection | HBM: 2000 V, CDM: 1000 V | High ESD protection levels |
Key Features
- Wide Supply Voltage Range: Operates from 2.0 V to 6.0 V, providing flexibility in various applications.
- CMOS Low Power Dissipation: Low power consumption, making it suitable for power-sensitive designs.
- High Noise Immunity: Robust against noise, ensuring reliable operation in noisy environments.
- Inputs and Outputs on Opposite Sides: Facilitates easy interface with microprocessors and microcomputers.
- 3-State Non-Inverting Outputs: Suitable for bus-oriented applications, allowing multiple devices to share the same bus.
- Common 3-State Output Enable Input: Allows for centralized control over output states.
- Latch-Up Performance: Exceeds 100 mA per JESD 78 Class II Level B, ensuring high reliability.
- Compliance with JEDEC Standards: Meets JESD8C (2.7 V to 3.6 V) and JESD7A (2.0 V to 6.0 V) standards.
- Multiple Package Options: Available in various packages, including SSOP20 and TSSOP20.
Applications
The 74HCT573DB,112 is useful in a variety of applications, including:
- Input or Output Ports for Microprocessors and Microcomputers: Its design makes it ideal for interfacing with microprocessors and microcomputers.
- Bus-Oriented Applications: The 3-state outputs are particularly useful in bus-oriented systems where multiple devices need to share the same bus.
- General Digital Circuitry: Suitable for any digital circuit that requires high-speed, low-power, and reliable latch functionality.
Q & A
- What is the primary function of the 74HCT573DB,112?
The primary function is to act as an octal D-type transparent latch with 3-state outputs, allowing for the storage and output of data based on the latch enable (LE) and output enable (OE) inputs.
- What are the input levels compatible with the 74HCT573DB,112?
The device is compatible with TTL (Transistor-Transistor Logic) input levels.
- What is the supply voltage range for the 74HCT573DB,112?
The device operates from 2.0 V to 6.0 V.
- What is the propagation delay time of the 74HCT573DB,112?
The propagation delay time is 17 ns.
- What is the operating temperature range of the 74HCT573DB,112?
The device operates from -40°C to +125°C.
- What type of package is the 74HCT573DB,112 available in?
The device is available in a 20-SSOP (0.209", 5.30mm Width) surface mount package.
- What is the ESD protection level of the 74HCT573DB,112?
The device has an ESD protection level of HBM: 2000 V and CDM: 1000 V.
- How does the latch enable (LE) input affect the device?
When LE is HIGH, data at the inputs enter the latches, and the latches are transparent. When LE is LOW, the latches store the information present at the inputs a set-up time preceding the HIGH-to-LOW transition of LE.
- What is the effect of the output enable (OE) input on the device?
A HIGH on OE causes the outputs to assume a high-impedance OFF-state. The operation of the OE input does not affect the state of the latches.
- Is the 74HCT573DB,112 compliant with any industry standards?
Yes, it complies with JEDEC standards JESD8C (2.7 V to 3.6 V) and JESD7A (2.0 V to 6.0 V).
