Overview
The SN74HCT573DWRG4 is an octal transparent D-type latch produced by Texas Instruments. This component is part of the 74HCT series, which is designed for use in TTL-compatible circuits. The device features 3-state outputs, making it suitable for driving highly capacitive or relatively low-impedance loads. It is particularly useful in applications such as buffer registers, I/O ports, bidirectional bus drivers, and working registers.
Key Specifications
| Parameter | Min | Nom | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VCC) | 4.5 | 5 | 5.5 | V |
| High-Level Input Voltage (VIH) | 2 | 2 | V | |
| Low-Level Input Voltage (VIL) | 0.8 | 0.8 | V | |
| Input Transition Rise/Fall Time | 500 | 500 | ns | |
| Operating Free-Air Temperature | -40 | 85 | °C | |
| Continuous Output Current | ±35 | mA | ||
| Typical Propagation Delay (tpd) | 21 | 32 | ns | |
| Output Drive at 5V | ±6 | mA | ||
| Low Input Current | 1 | μA | ||
| Power Consumption (ICC) | 80 | μA |
Key Features
- Operating voltage range of 4.5V to 5.5V
- High-Current 3-State Outputs capable of driving bus lines directly or up to 15 LSTTL loads
- Low power consumption, with a maximum ICC of 80 μA
- Typical propagation delay of 21 ns at 5V
- ±6-mA output drive at 5V
- Low input current of 1 μA maximum
- Inputs are TTL-Voltage compatible
- Bus-structured pinout for easy integration
- Buffered output-enable (OE) input for high-impedance state control
Applications
The SN74HCT573DWRG4 is suitable for various applications, including:
- Buffer registers
- I/O ports
- Bidirectional bus drivers
- Working registers
- Driving highly capacitive or relatively low-impedance loads
Q & A
- What is the operating voltage range of the SN74HCT573DWRG4?
The operating voltage range is from 4.5V to 5.5V.
- What is the typical propagation delay of the SN74HCT573DWRG4?
The typical propagation delay is 21 ns at 5V.
- How much current can the outputs drive?
The outputs can drive up to ±6 mA at 5V.
- What is the maximum power consumption of the SN74HCT573DWRG4?
The maximum power consumption is 80 μA.
- Are the inputs TTL-Voltage compatible?
- What is the purpose of the output-enable (OE) input?
The output-enable (OE) input allows the outputs to be placed in either a normal logic state or a high-impedance state.
- What are some common applications of the SN74HCT573DWRG4?
- What is the maximum continuous output current?
- What is the operating free-air temperature range?
- What packages are available for the SN74HCT573DWRG4?
