Overview
The SN74AC373PWR is an octal D-type transparent latch with 3-state outputs, manufactured by Texas Instruments. This integrated circuit is designed to operate within a supply voltage range of 2V to 6V, making it versatile for various digital logic applications. The device features 8-bit latches with 3-state noninverting outputs, which are particularly suitable for driving highly capacitive or relatively low-impedance loads. It is commonly used in implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | TSSOP (PW) | |
| Pins | 20 | |
| Operating Temperature Range | -40 to 85 | °C |
| Supply Voltage Range | 2 to 6 | V |
| Input Voltage Range | 0 to VCC + 0.5 | V |
| Output Voltage Range | 0 to VCC + 0.5 | V |
| Maximum Propagation Delay (tpd) at 5V | 9.5 | ns |
| High-Level Output Current (IOH) | -24 mA (at VCC = 5.5V) | mA |
| Low-Level Output Current (IOL) | 24 mA (at VCC = 5.5V) | mA |
| Setup Time, Data before LE↓ | 4 to 5 | ns |
| Hold Time, Data after LE↓ | 1 | ns |
Key Features
- Operation of 2V to 6V VCC, allowing for flexibility in different voltage environments.
- Inputs accept voltages up to 6V, enhancing compatibility with various input signals.
- Maximum propagation delay of 9.5ns at 5V, ensuring high-speed data transfer.
- 3-state noninverting outputs that can drive bus lines directly, making them suitable for bus-organized systems.
- Full parallel access for loading data, facilitating efficient data transfer and storage.
- The high-impedance state of the outputs allows them to be disconnected from the bus lines, reducing loading and driving requirements.
Applications
The SN74AC373PWR is particularly suitable for several key applications:
- Implementing buffer registers to temporarily hold data.
- Creating I/O ports for input/output operations.
- Acting as bidirectional bus drivers to manage data flow between different parts of a system.
- Serving as working registers in digital circuits for temporary data storage and manipulation.
Q & A
- What is the operating temperature range of the SN74AC373PWR?
The operating temperature range is -40°C to 85°C.
- What is the supply voltage range for the SN74AC373PWR?
The supply voltage range is 2V to 6V.
- What is the maximum propagation delay at 5V for the SN74AC373PWR?
The maximum propagation delay at 5V is 9.5ns.
- What type of outputs does the SN74AC373PWR have?
The SN74AC373PWR has 3-state noninverting outputs.
- What is the purpose of the high-impedance state in the SN74AC373PWR?
The high-impedance state allows the outputs to be disconnected from the bus lines, reducing loading and driving requirements.
- How many bits does the SN74AC373PWR latch have?
The SN74AC373PWR is an 8-bit latch.
- What types of applications is the SN74AC373PWR suitable for?
The SN74AC373PWR is suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.
- What is the package type and pin count of the SN74AC373PWR?
The package type is TSSOP (PW) with 20 pins.
- What are the input and output current capabilities of the SN74AC373PWR?
The high-level output current (IOH) is up to -24 mA, and the low-level output current (IOL) is up to 24 mA at VCC = 5.5V.
- What are the setup and hold times for the SN74AC373PWR?
The setup time is 4 to 5 ns, and the hold time is 1 ns.
