N74F573D,602

Latches Overview

The N74F573D,602 is an octal transparent latch with 3-State outputs manufactured by NXP USA Inc. It features a broadside pinout configuration in a 20-pin Plastic Small Outline (SOL) package to facilitate PC board layout and microprocessor interfacing. The device operates within a supply voltage range of 4.5V to 5.5V and supports a commercial temperature range of 0°C to +70°C. Typical propagation delay from data inputs to outputs is 5.0ns, with a typical total supply current of 35mA.

Latches Feature Summary

• Broadside pinout configuration allows inputs and outputs to be positioned on opposite sides of the package for easier interface to microprocessors.
• Features three-state output buffers designed to drive heavily loaded buses, MOS memories, or MOS microprocessors.
• Includes independent control gates for Latch Enable (E) and Output Enable (OE), allowing separate management of latching and bus driving functions.

Latches Applications

• Input or output port interfacing for microprocessors
• Bus interfacing applications requiring three-state control
• High-speed replacement for legacy N8TS805 and N8TS806 devices

Latches Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific ordering suffix matches the required package type and environmental rating. Check for RoHS compliance status as indicated in official documentation. Ensure the part number corresponds to the correct revision level before integration into designs.

Latches Selection Notes

Select this component when a wide pin pitch is required for high-density PCB layouts involving microprocessors. The broadside arrangement simplifies routing compared to standard parallel I/O packages. Consider the 3-State capability for shared bus architectures where multiple devices must share data lines without electrical contention.

Latches Part Context

This device belongs to the 74F logic family, known for high-speed performance using Fast TTL technology. It is functionally identical to the 74F373 but utilizes a distinct physical pinout. The 'D' suffix indicates the 20-pin Plastic Small Outline package variant, while the ',602' denotes the specific commercial grade and packaging specification.

Latches Replacement Considerations

N74F573N

Latches FAQ

How does the 74F573 differ from the 74F373?

The 74F573 is functionally identical to the 74F373 but features a broadside pinout configuration. This places inputs and outputs on opposite sides of the package to facilitate easier printed circuit board layout and microprocessor interfacing.

What controls the three-state outputs?

The active Low Output Enable (OE) input controls all eight three-state buffers independently of the latch operation. When OE is High, the outputs enter a high impedance state; when Low, they drive the latched or transparent data.