Overview
The 74HCT574DB,112, produced by Nexperia USA Inc., is an 8-bit positive-edge triggered D-type flip-flop with 3-state outputs. This integrated circuit is part of the 74HCT series, which is known for its compatibility with TTL (Transistor-Transistor Logic) input levels. The device is designed to store the state of its individual D-inputs on the LOW-to-HIGH clock transition, making it suitable for a variety of digital logic applications.
Key Specifications
| Parameter | Value | Unit | Conditions |
|---|---|---|---|
| VCC (Supply Voltage) | 4.5 - 5.5 | V | |
| Logic Switching Levels | TTL | ||
| Output Drive Capability | ± 6 | mA | |
| tpd (Propagation Delay) | 15 | ns | VCC = 4.5 V, CL = 50 pF |
| fmax (Maximum Clock Frequency) | 76 | MHz | |
| Tamb (Ambient Temperature) | -40 to +125 | °C | |
| Package | SSOP-20 (SOT360-1) | ||
| ESD Protection | HBM JESD22-A114F exceeds 2000 V, MM JESD22-A115-A exceeds 200 V |
Key Features
- 8-bit Positive-Edge Triggered D-Type Flip-Flop: Stores the state of individual D-inputs on the LOW-to-HIGH clock transition.
- 3-State Outputs: Outputs can be set to a high-impedance OFF-state using the output enable (OE) input.
- TTL Input Levels: Compatible with TTL logic levels.
- Low Power Consumption: Designed for low power usage.
- ESD Protection: High ESD protection levels (HBM JESD22-A114F exceeds 2000 V, MM JESD22-A115-A exceeds 200 V).
- Multiple Package Options: Available in various packages, including SSOP-20.
- Static Flip-Flop Operation: Retains state indefinitely with clock level either high or low.
- Power-Down Protection: Protection on inputs and outputs during power-down.
- Symmetrical Output Impedance: Balanced propagation delays.
Applications
- Bus-Oriented Applications: The 3-state outputs make it suitable for bus-oriented applications where multiple devices need to share the same bus.
- Digital Logic Circuits: Used in various digital logic circuits requiring flip-flop functionality.
- Microprocessor and Microcontroller Systems: Can be used in systems requiring data storage and retrieval at specific clock edges.
- Communication Systems: Useful in communication systems where data needs to be synchronized with a clock signal.
Q & A
- What is the primary function of the 74HCT574DB,112?
The primary function is to act as an 8-bit positive-edge triggered D-type flip-flop with 3-state outputs.
- What are the input logic levels for the 74HCT574DB,112?
The input logic levels are TTL (Transistor-Transistor Logic) compatible.
- What is the maximum clock frequency for the 74HCT574DB,112?
The maximum clock frequency is 76 MHz.
- What is the package type for the 74HCT574DB,112?
The package type is SSOP-20 (SOT360-1).
- What is the operating temperature range for the 74HCT574DB,112?
The operating temperature range is from -40°C to +125°C.
- Does the 74HCT574DB,112 have ESD protection?
Yes, it has high ESD protection levels (HBM JESD22-A114F exceeds 2000 V, MM JESD22-A115-A exceeds 200 V).
- How do the 3-state outputs work on the 74HCT574DB,112?
The outputs can be set to a high-impedance OFF-state using the output enable (OE) input.
- What is the power consumption characteristic of the 74HCT574DB,112?
The device is designed for low power consumption.
- Can the 74HCT574DB,112 be used in bus-oriented applications?
Yes, it is suitable for bus-oriented applications due to its 3-state outputs.
- Does the 74HCT574DB,112 retain its state during power-down?
Yes, it retains its state indefinitely with clock level either high or low and has power-down protection on inputs and outputs.
