Overview
The 74HCT574PW-Q100,118 is an 8-bit positive-edge triggered D-type flip-flop with 3-state outputs, manufactured by Nexperia (previously part of NXP). This high-speed Si-gate CMOS device is pin compatible with Low-power Schottky TTL and is specified in compliance with the Automotive Electronics Council (AEC) standard Q100 (Grade 1), making it suitable for automotive applications.
The device features a clock (CP) input and a latch enable (LE) input, allowing for precise control over data storage and output. The 3-state outputs enable the device to be used in bus-oriented applications, and the inputs include clamp diodes for protection against excessive voltages.
Key Specifications
| Type Number | VCC (V) | Logic Switching Levels | Output Drive Capability (mA) | tpd (ns) | fmax (MHz) | Power Dissipation Considerations | Tamb (°C) | Package Name |
|---|---|---|---|---|---|---|---|---|
| 74HCT574PW-Q100 | 4.5 - 5.5 | TTL | ± 7.8 | 24 | 8 | Low | -40 to +125 | TSSOP20 (SOT360-1) |
Key Features
- 8-bit positive-edge triggered D-type flip-flop with 3-state outputs.
- High-speed Si-gate CMOS technology.
- Pin compatible with Low-power Schottky TTL.
- Latch enable (LE) and clock (CP) inputs for precise control.
- Inputs include clamp diodes for protection against excessive voltages.
- 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) and CDM (ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V).
- Latch-up performance exceeds 100 mA per JESD 78 Class II Level B.
- Automotive product qualification in accordance with AEC-Q100 (Grade 1).
- Operates over a temperature range of -40 °C to +125 °C.
Applications
The 74HCT574PW-Q100,118 is versatile and can be used in various applications across different industries, including:
- Automotive systems: Due to its AEC-Q100 qualification, it is suitable for use in automotive electronics.
- Industrial control systems: For applications requiring reliable and high-speed data storage and retrieval.
- Consumer electronics: In devices that require bus-oriented data handling and 3-state output capabilities.
- Computing and data processing: As part of microprocessor or microcomputer systems needing input or output ports.
Q & A
- What is the primary function of the 74HCT574PW-Q100,118?
The primary function is to act as an 8-bit positive-edge triggered D-type flip-flop with 3-state outputs.
- What are the logic switching levels for this device?
The logic switching levels are TTL (Transistor-Transistor Logic).
- What is the operating temperature range for this device?
The operating temperature range is from -40 °C to +125 °C.
- Is the device compliant with any automotive standards?
Yes, it is compliant with the Automotive Electronics Council (AEC) standard Q100 (Grade 1).
- What type of package does this device come in?
The device comes in a TSSOP20 (SOT360-1) package.
- What is the maximum frequency of operation for this device?
The maximum frequency of operation is 8 MHz.
- Does the device have ESD protection?
Yes, it complies with JEDEC standards for ESD protection: HBM (ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V) and CDM (ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V).
- What are the typical applications for this device?
Typical applications include automotive systems, industrial control systems, consumer electronics, and computing and data processing systems.
- How does the latch enable (LE) input function?
The latch enable (LE) input allows data at the inputs to enter the latches when LE is HIGH. When LE is LOW, the latches store the information that was present at the inputs a set-up time preceding the HIGH-to-LOW transition of LE.
- What is the purpose of the 3-state outputs?
The 3-state outputs enable the device to be used in bus-oriented applications, allowing the outputs to assume a high-impedance OFF-state when the output enable (OE) input is HIGH.
