Texas Instruments

SN74HC563DW

SN74HC563DW Description

The SN74HC563DW from Texas Instruments is a high-performance 8-bit transparent D-type latch designed for surface-mount applications. Housed in a 20-pin SOIC package, this IC operates within a 2V to 6V supply voltage range, making it compatible with a variety of logic levels. It features 8:8 parallel input/output (I/O) channels with tri-state outputs, enabling efficient data buffering and bus interfacing. With a propagation delay of just 23ns and symmetrical 7.8mA output current (both high and low), it ensures fast and reliable signal transmission. The device is RoHS3 compliant and REACH unaffected, meeting stringent environmental and safety standards.

SN74HC563DW Features

• High-Speed Operation: 23ns propagation delay ensures rapid data transfer, ideal for time-critical applications.
• Wide Voltage Range (2V–6V): Supports compatibility with 3.3V and 5V systems, enhancing design flexibility.
• Tri-State Outputs: Allows bus sharing and reduces contention in multi-device systems.
• Balanced Drive Strength: 7.8mA output current (sink/source) ensures robust signal integrity.
• Low Power Consumption: CMOS technology minimizes power dissipation.
• Industrial-Grade Reliability: MSL 1 (Unlimited) moisture sensitivity ensures durability in harsh environments.
• Compact SOIC-20 Package: Saves board space while maintaining high pin density.

SN74HC563DW Applications

• Data Storage & Buffering: Used in microcontroller/microprocessor systems for temporary data retention.
• Bus Interface Circuits: Facilitates bidirectional data flow in shared bus architectures (e.g., memory systems).
• Industrial Control Systems: Suitable for PLC I/O modules due to its noise immunity and robust performance.
• Communication Equipment: Enables signal latching in UART/SPI interfaces.
• Automotive Electronics: Compliant with 5V logic systems in infotainment and sensor networks.

Conclusion of SN74HC563DW

The SN74HC563DW stands out as a versatile, high-speed latch with tri-state control, making it ideal for data routing, buffering, and bus management. Its wide voltage range, balanced drive strength, and compact form factor make it superior to basic latches, particularly in space-constrained, multi-device systems. Whether in industrial automation, automotive electronics, or embedded systems, this IC delivers reliable performance while adhering to environmental compliance standards. For engineers seeking a cost-effective, high-performance latch, the SN74HC563DW is a compelling choice.