Overview
The 74HCT573D,652 is an 8-bit D-type transparent latch with 3-state outputs, manufactured by NXP Semiconductors (now part of Nexperia). This integrated circuit is designed to provide a versatile solution for data storage and transfer in digital systems. It features latch enable (LE) and output enable (OE) inputs, allowing for precise control over data flow and output states.
Key Specifications
| Parameter | Value |
|---|---|
| Type Number | 74HCT573D |
| Package | SO20 (SOT163-1) |
| VCC (V) | 4.5 - 5.5 |
| Logic Switching Levels | TTL |
| Output Drive Capability (mA) | ± 6 |
| Propagation Delay (tpd) (ns) | 17 |
| Power Dissipation Considerations | Low |
| Operating Temperature Range (°C) | -40 to +125 |
| Thermal Resistance (Rth(j-a)) (K/W) | 85 |
| Thermal Resistance (Ψth(j-top)) (K/W) | 27.5 |
| Thermal Resistance (Rth(j-c)) (K/W) | 61 |
Key Features
- 8-bit D-type transparent latch with 3-state outputs.
- Latch enable (LE) and output enable (OE) inputs for controlling data flow and output states.
- Inputs include clamp diodes, enabling the use of current limiting resistors to interface inputs to voltages in excess of VCC.
- 3-state non-inverting outputs suitable for bus-oriented applications.
- Complies with JEDEC standards for ESD protection: HBM ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V, CDM ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V.
- Latch-up performance exceeds 100 mA per JESD 78 Class II Level B.
- Inputs and outputs on opposite sides of the package, facilitating easy interface with microprocessors.
Applications
The 74HCT573D,652 is useful in a variety of applications, including:
- Input or output ports for microprocessors and microcomputers.
- Bus-oriented systems where 3-state outputs are necessary.
- Automotive, industrial, and consumer electronics where robust and reliable data storage and transfer are required.
- Computing and power management systems needing efficient and low-power logic solutions.
Q & A
- What is the primary function of the 74HCT573D,652? The primary function is to act as an 8-bit D-type transparent latch with 3-state outputs.
- What are the key control inputs for this IC? The key control inputs are the latch enable (LE) and output enable (OE) inputs.
- What are the logic switching levels for this IC? The logic switching levels are TTL (Transistor-Transistor Logic).
- What is the operating temperature range for this IC? The operating temperature range is from -40°C to +125°C.
- Does this IC have ESD protection? Yes, it complies with JEDEC standards for ESD protection: HBM ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V, CDM ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V.
- What is the propagation delay (tpd) of this IC? The propagation delay is 17 ns.
- Can this IC be used in bus-oriented systems? Yes, it features 3-state non-inverting outputs suitable for bus-oriented applications.
- What package type is available for this IC? It is available in the SO20 (SOT163-1) package.
- Is this IC suitable for automotive applications? Yes, it is suitable for automotive, industrial, and consumer electronics due to its robust and reliable performance.
- How does the output enable (OE) input affect the IC? A HIGH on the OE input causes the outputs to assume a high-impedance OFF-state without affecting the state of the latches.
