Overview
The SN74HC573APWR is an octal transparent D-type latch with 3-state outputs, manufactured by Texas Instruments. This component is part of the HC/UH family and is designed to operate within a wide voltage range from 2 V to 6 V. It is particularly suited for applications requiring the driving of highly capacitive or relatively low-impedance loads. The device features a bus-structured pinout, making it ideal for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Manufacturer | Texas Instruments | |
| Package Type | TSSOP-20 | |
| Operating Temperature | -40°C to 85°C | |
| Supply Voltage | 2 V to 6 V | |
| Supply Current (Max) | 80 µA | |
| Propagation Delay (Typ) | 21 ns (at VCC = 5 V) | |
| Output Drive | ±6 mA at VCC = 5 V | |
| Input Current (Max) | 1 µA | |
| Load Capacitance | 50 pF | |
| Terminal Finish | Nickel Palladium Gold | |
| Number of Bits | 8 | |
| Number of Terminals | 20 | |
| Terminal Pitch | 0.65 mm |
Key Features
- Wide Operating Voltage Range: From 2 V to 6 V, making it versatile for various applications.
- High-Current 3-State Outputs: Capable of driving bus lines directly up to 15 LSTTL loads.
- Low Power Consumption: Maximum ICC of 80 µA.
- Fast Propagation Delay: Typical tpd of 21 ns at VCC = 5 V.
- High Output Drive: ±6 mA at VCC = 5 V.
- Low Input Current: Maximum of 1 µA.
- Bus-Structured Pinout: Facilitates easy implementation in buffer registers, I/O ports, and bidirectional bus drivers.
Applications
- Buffer Registers: Ideal for buffering data in digital systems.
- Bidirectional Bus Drivers: Suitable for driving and receiving data on bidirectional buses.
- Working Registers: Can be used as temporary storage for data in various digital circuits.
- I/O Ports: Effective in managing input/output operations in microprocessor and microcontroller systems.
Q & A
- What is the SN74HC573APWR?
The SN74HC573APWR is an octal transparent D-type latch with 3-state outputs, manufactured by Texas Instruments.
- What is the operating voltage range of the SN74HC573APWR?
The operating voltage range is from 2 V to 6 V.
- What is the typical propagation delay of the SN74HC573APWR?
The typical propagation delay is 21 ns at VCC = 5 V.
- What is the maximum supply current of the SN74HC573APWR?
The maximum supply current is 80 µA.
- What is the output drive capability of the SN74HC573APWR?
The output drive capability is ±6 mA at VCC = 5 V.
- What are the common applications of the SN74HC573APWR?
Common applications include buffer registers, bidirectional bus drivers, working registers, and I/O ports.
- What is the package type of the SN74HC573APWR?
The package type is TSSOP-20.
- What is the operating temperature range of the SN74HC573APWR?
The operating temperature range is from -40°C to 85°C.
- Is the SN74HC573APWR RoHS compliant?
Yes, the SN74HC573APWR is RoHS compliant.
- What is the load capacitance of the SN74HC573APWR?
The load capacitance is 50 pF.
