SN74ALS564BNS Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The SN74ALS564BNS is an octal D-type edge-triggered flip-flop with 3-state outputs from the ALS logic family, featuring buffered clock and output enable control inputs. It supports high-speed 8-bit data latching with output enable in a Small Outline package. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- SN74ALS564BNS Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Octal 8-bit D flip-flop with 3-state outputs for shared bus applications with multiple drivers
- Buffered OE and CLK control inputs prevent glitches caused by input transitions during switching
- ALS (Advanced Low-power Schottky) technology balances high speed with reduced power consumption
- Edge-triggered design ensures precise data capture on clock rising edge for reliable synchronous operation
Applications
The SN74ALS564BNS is used for 8-bit data latching and bus interfacing in microprocessor systems, memory interfaces, and data buffering applications. It is also suitable for pipeline registers in digital signal processing, address latching in memory controllers, and output port expansion in embedded systems requiring 3-state bus driving capability.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for SN74ALS564BNS:
Frequently Asked Questions
What is the function of the SN74ALS564BNS?
The SN74ALS564BNS is an octal (8-bit) D-type edge-triggered flip-flop with 3-state outputs. On each rising clock edge, the 8 data inputs are captured and stored in the flip-flops, with the stored values driven to the outputs when the output enable is active. The 3-state outputs allow the device to be connected directly to a shared bus with multiple drivers.
What does the buffered control inputs feature mean?
The buffered control inputs on the SN74ALS564BNS mean that the clock (CLK) and output enable (OE) control signals pass through internal buffers before reaching the flip-flop cells. This prevents input signal transitions from causing internal glitches or partial switching during control transitions, improving reliability in high-speed system designs.
What logic family does the SN74ALS564BNS belong to?
The SN74ALS564BNS belongs to the ALS (Advanced Low-power Schottky) logic family. ALS devices offer improved speed over standard LS logic and lower power consumption than AS logic, making them a good balance of performance and power for high-speed digital systems from the TTL generation.
What package is the SN74ALS564BNS available in?
The SN74ALS564BNS is available in an Small Outline (SOP/SOIC) package. This surface-mount package provides a compact footprint compared to equivalent DIP packages, enabling denser PCB layouts while maintaining compatibility with standard SMT assembly and soldering processes.
What are typical applications for the SN74ALS564BNS?
Typical applications include address latches in microprocessor systems, data bus buffers in memory interfaces, pipeline registers in digital logic, output port drivers in embedded controllers, and any 8-bit synchronous storage application where 3-state bus interfacing is needed to share an output bus among multiple sources.
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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.
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