PHILIPS CBT6820 User's Guide - 20-bit Bus Switch with Precharged Outputs and Schottky Undershoot Protection for Live Insertion
Summary
The CBT6820 is a high-speed 20-bit bus switch engineered for reliable signal routing in digital systems. Featuring TTL compatibility, precharged outputs, and crucial Schottky undershoot protection, this device ensures signal integrity during live power insertion. The accompanying manual offers comprehensive details necessary for optimal design integration, including full pin configuration diagrams, detailed operational logic, electrical specifications, and absolute maximum ratings. It is essential for electronics engineers designing sophisticated circuits requiring robust, multi-port bus switching capability.
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CBT6820 20-bit bus switch with precharged outputs and Schottky undershoot protection for live insertion Product specification
1999 Apr 05
Page Summary Contents For PHILIPS CBT6820 User's Guide - 20-bit Bus Switch with Precharged Outputs and Schottky Undershoot Protection for Live Insertion
Manual Details
| Brand | Philips |
|---|---|
| Pages | 8 |
| File Size | 54.51 KB |
| Published | July 15, 2026 |
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Frequently Asked Questions
How do I connect Port A and Port B using this bus switch?
Connect them by setting the Open Enable (OE) pin low. When OE is low, the switch connects Port A directly to Port B.
What signal integrity features prevent data loss when switching ports?
The device features Schottky undershoot protection and precharges the B port using a user-selectable bias voltage (BIASV), minimizing live-insertion noise.
What is the recommended operating voltage range for this chip?
The recommended DC supply voltage range is 4.0 V to 5.5 V CC, and the Bias voltage (BIASV) should be between 1.3 V and 1.8 V.
Can I use the CBT6820 in critical medical life support equipment?
No, the product is explicitly not designed for use in life support appliances, devices, or systems where malfunction could reasonably result in a personal injury.