SN74HC563NS Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
The SN74HC563NS is an octal D-type transparent latch with tri-state outputs from Texas Instruments in the HC CMOS logic family. It features 8-bit parallel latch capability with active-low output enable for bus interfacing applications. Available in a through-hole 20-PDIP package with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- SN74HC563NS Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Octal 8-bit D-type transparent latch with tri-state outputs for high-impedance bus isolation and data holding
- Active-low output enable (OE) control allowing multiple devices to share a common bus without contention
- HC CMOS logic family with wide supply voltage range (2V to 6V) and TTL-compatible inputs
- 20-pin PDIP through-hole package ideal for prototyping and legacy digital system designs
Applications
The SN74HC563NS is widely used in microprocessor and microcontroller systems for address latching, data bus buffering, and I/O port expansion where multiple data lines need to be held stable. It is commonly employed in memory interface circuits, peripheral bus controllers, and register-based data storage where the transparent latch function and tri-state outputs are essential. Industrial control systems, embedded designs, and educational electronics projects also use this versatile octal latch for bus management and data path control.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the function of the SN74HC563NS?
The SN74HC563NS is an octal D-type transparent latch with tri-state outputs. It latches 8 bits of data simultaneously when the latch enable (LE) input is low, and passes data transparently when LE is high. The tri-state outputs allow bus sharing with other devices.
What makes the SN74HC563NS different from the SN74HC373?
The SN74HC563NS has inverting outputs (active-low) compared to the non-inverting SN74HC373. Both are octal transparent latches with tri-state outputs, but the SN74HC563NS outputs are the complement of the input data, making it suitable for applications where inverted data is required.
What package does the SN74HC563NS use?
The SN74HC563NS is available in a 20-pin PDIP (Plastic Dual In-Line Package) through-hole package. This standard DIP package is compatible with breadboards and through-hole PCBs, making it popular for prototyping and replacement in legacy digital systems.
What supply voltage does the SN74HC563NS operate at?
The SN74HC563NS operates across a wide supply voltage range typical of the HC CMOS logic family, from 2V to 6V. This flexibility allows it to interface with both 3.3V and 5V digital systems while maintaining TTL-compatible input thresholds.
What are the main applications of the SN74HC563NS?
Main applications include address latching in microprocessor bus systems, data buffering, peripheral interface circuits, and I/O port expansion. The 8-bit latch with tri-state control is essential in bus-based architectures where multiple devices share data lines and require controlled output enable functionality.
Related Guides
TPS613222ADBVR Boost Converter Design Guide: Battery-Powered 3.3 V Rail
Design a stable 3.3 V or 5 V boost rail with the TPS613222ADBVR: input/output capacitor sizing, inductor selection, and low-EMI PCB layout for portable battery-powered devices.
May 24, 2026
OPA4277MDTEP Precision Instrumentation Amp Design Guide
Circuit techniques for OPA4277MDTEP precision op-amp: instrumentation amp front-ends, low-side current sensing, photodiode TIA, and thermocouple amplifiers.
May 24, 2026
CDCE913PWR Programmable Clock Synthesizer Design Guide
Complete design guide for the CDCE913PWR clock synthesizer: VCO range, I2C programming, decoupling, and layout best practices for embedded systems.
May 22, 2026
OPA4277MDTEP Precision Quad Op-Amp Selection Guide: How to Choose the Right Variant
How to choose the right OPA4277 quad precision op-amp variant—OPA4277MDTEP vs UA—covering offset voltage, CMRR, supply range, and temperature grade.
May 22, 2026
Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”