Overview
The SN74AHC573PWR is an octal transparent D-type latch produced by Texas Instruments, designed for high-speed CMOS logic applications. It is part of the AHC family, offering improved performance and lower power consumption compared to standard HC logic. This component is widely used in digital systems for data storage, buffering, and signal routing. Its primary market includes industrial automation, consumer electronics, and automotive electronics. The SN74AHC573PWR stands out for its high-speed operation, low power consumption, and robust design, making it a competitive choice for modern digital circuits.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Supply Voltage | 2 to 5.5 | V | Wide operating range |
| Input Voltage | 0 to VCC | V | Compatible with TTL levels |
| Output Current | ±8 | mA | High drive capability |
| Propagation Delay | 7.5 | ns | Typical at 5V |
| Operating Temperature | -40 to 85 | °C | Industrial range |
| Package | TSSOP-20 | - | Surface mount |
Key Features
- Octal transparent D-type latch with 3-state outputs
- High-speed operation with low power consumption
- Wide operating voltage range (2V to 5.5V)
- Compatible with TTL input and output levels
- Outputs can drive up to 15 LSTTL loads
- Latch-up performance exceeds 250 mA per JESD 17
Applications
The SN74AHC573PWR is extensively used in various digital systems, including data buses, memory address latching, and I/O port expansion. It is particularly effective in applications requiring high-speed data transfer and buffering, such as industrial control systems, automotive electronics, and consumer devices like printers and televisions. Its ability to interface directly with microprocessors and other digital logic circuits makes it a versatile component in modern electronics.
Q & A
What is the operating voltage range of the SN74AHC573PWR?
The SN74AHC573PWR operates within a voltage range of 2V to 5.5V.
What is the typical propagation delay of this latch?
The typical propagation delay is 7.5 ns at 5V.
Can the SN74AHC573PWR interface with TTL logic levels?
Yes, it is compatible with both TTL input and output levels.
What is the maximum output current of the SN74AHC573PWR?
The maximum output current is ±8 mA.
What is the package type of this component?
It comes in a TSSOP-20 package.
What are the key features of the SN74AHC573PWR?
Key features include high-speed operation, low power consumption, and 3-state outputs.
What is the latch-up performance of this component?
The latch-up performance exceeds 250 mA per JESD 17.
Is the SN74AHC573PWR suitable for automotive applications?
Yes, it is widely used in automotive electronics due to its robust design.
What is the typical application of this latch?
Typical applications include data buses, memory address latching, and I/O port expansion.
What is the significance of the 3-state outputs?
The 3-state outputs allow the latch to be effectively disconnected from the bus, enabling multiple devices to share the same bus without interference.
