Overview
The Texas Instruments SN74HCT574DWR is an octal edge-triggered D-type flip-flop integrated circuit. This component is designed specifically for bus driving and features 3-state outputs, which can be in a high or low logic state or a high-impedance state. This high-impedance state allows the outputs to neither load nor drive the bus lines significantly, making it ideal for applications requiring direct bus driving without the need for interface or pull-up components. The SN74HCT574DWR is part of the 74HCT series and operates within a voltage range of 4.5V to 5.5V, making it suitable for a variety of digital logic applications.
Key Specifications
| Parameter | Description |
|---|---|
| Manufacturer | Texas Instruments |
| Part Number | SN74HCT574DWR |
| Package | SOIC-20-300mil |
| Operating Voltage | 4.5V to 5.5V |
| Operating Temperature | -40°C to 85°C |
| Clock Frequency | Up to 33 MHz at 5.5V |
| Propagation Delay | Typically 22ns, Max 47ns @ 5.5V, 150pF |
| Output Type | 3-state, non-inverting |
| Output Drive | ±6mA at 5V |
| Input Capacitance | 3pF |
| Quiescent Current | 8µA |
| Trigger Type | Positive edge |
Key Features
- Operating voltage range of 4.5V to 5.5V
- High-current 3-state noninverting outputs capable of driving bus lines directly or up to 15 LSTTL loads
- Low power consumption with a maximum ICC of 80µA
- Typical propagation delay of 22ns
- ±6mA output drive at 5V
- Low input current of 1µA max
- Inputs are TTL-voltage compatible
- Bus-structured pinout
Applications
- Buffer registers
- I/O ports
- Bidirectional bus drivers
- Working registers
- Shift registers
- Storage registers
- Bounce elimination switches
- Data storage and transfer
- Latches and memory applications
- Frequency division
Q & A
- What is the operating voltage range of the SN74HCT574DWR?
The operating voltage range is 4.5V to 5.5V.
- What type of outputs does the SN74HCT574DWR have?
The SN74HCT574DWR has 3-state noninverting outputs.
- What is the maximum clock frequency of the SN74HCT574DWR?
The maximum clock frequency is up to 33 MHz at 5.5V.
- What is the typical propagation delay of the SN74HCT574DWR?
The typical propagation delay is 22ns, with a maximum of 47ns at 5.5V and 150pF load.
- What is the output drive capability of the SN74HCT574DWR?
The output drive capability is ±6mA at 5V.
- Is the SN74HCT574DWR RoHS compliant?
Yes, the SN74HCT574DWR is RoHS compliant.[
- What is the operating temperature range of the SN74HCT574DWR?
The operating temperature range is -40°C to 85°C.[
- What type of trigger does the SN74HCT574DWR use?
The SN74HCT574DWR uses a positive edge trigger.[
- What are some common applications of the SN74HCT574DWR?
Common applications include buffer registers, I/O ports, bidirectional bus drivers, working registers, shift registers, storage registers, and more.[
- What is the package type of the SN74HCT574DWR?
The package type is SOIC-20-300mil.[
