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Fairchild NC7SZ384 1-Bit Low Power Bus Switch Data Sheet

Summary

The NC7SZ384 is an ultra high-speed CMOS TTL 1-bit bus switch designed for compact data line interconnection in digital systems. Featuring a low On Resistance and space-saving MicroPak package, it ensures minimal signal delay while maintaining compatibility with standard TTL levels. This technical manual provides comprehensive documentation, covering detailed electrical characteristics, timing parameters, absolute maximum ratings, and system integration diagrams. It is an essential resource for engineers designing robust, high-performance electronics that require efficient bus switching.

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Page 1 Text Content

7S 384 1-B it L er B s S itch

November 1996 Revised December 2005

NC7SZ384 1-Bit Low Power Bus Switch

General Description Features The NC7SZ384 provides 1-bit of ultra high-speed CMOS TTL- Space saving SOT23 or SC70 5-lead package compatible bus switch. The low On Resistance of the switch

Ultra small Micro Pak leadless package

allows inputs to be connected to outputs with minimal propaga-

tion delay and without generating additional ground bounce 5 switch connection between two ports

noise. The device is organized as a 1-bit switch with a bus

Minimal propagation delay through the switch

enable (OE) signal. When OE is LOW, the switch is on and Port

A is connected to Port B. When OE is HIGH, the switch is open Low ICC

and a high-impedance state exists between the two ports.

Zero bounce in flow-through mode

Control inputs compatible with TTL level

Ordering Code:

Order Package Product Code

Package Description Supplied As

Number Number Top Mark NC7SZ384M5X MA05B 8Z84 5-Lead SOT23, JEDEC MO-178, 1.6mm 3k Units on Tape and Reel NC7SZ384P5X MAA05A Z84 5-Lead SC70, EIAJ SC-88a, 1.25mm Wide 3k Units on Tape and Reel NC7SZ384L6X MAC06A C3 Pb-Free 6-Lead Micro Pak, 1.0mm Wide 5k Units on Tape and Reel Pb-Free package per JEDEC J-STD-020B.

Logic Diagram Connection Diagrams

Pin Assignments for SOT23 and SC70

Pin Description

Pin Name Description

(Top View)

OE Bus Switch Enable

Pad Assignments for Micro Pak

Bus A Bus B

NC No Connect

Truth Table

OE BO Function

AO Connect (Top Through View)

HIGH-Z State Disconnect

Micro Pak is a trademark of Fairchild Semiconductor Corporation.

© 2005 Fairchild Semiconductor Corporation DS012178 www.fairchildsemi.com

Page Summary Contents For Fairchild NC7SZ384 1-Bit Low Power Bus Switch Data Sheet

Page 1 7S 384 1-B it L er B s S itch November 1996 Revised December 2005 NC7SZ384 1-Bit Low Power Bus Switch General Description Features The NC7SZ384 provides 1-bit of ultra high-speed CMOS TTL- Space savin...
Page 2 Absolute Maximum Ratings(Note 1) Recommended Operating Conditions (Note 3) Supply Voltage (VCC) 0.5V to 7.0V DC Switch Voltage (VS) 0.5V to 7.0V Power Supply Operating (VCC) 4.0V to 5.5V DC Input Vo...
Page 3 AC Electrical Characteristics TA  40C to 85C, Symbol Parameter VCC CL  50 p F, RU  RD  500 Units Conditions Figure (V) Min Typ Max Number (Note 6) t PHL, Propagation Delay Bus to Bus 4.0–5.5 0...
Page 4 Tape and Reel Specification TAPE FORMAT for SOT23 and SC70 Package Tape Number Cavity Cover Tape Designator Section Cavities Status Status Leader (Start End) 125 (typ) Empty Sealed M5X, P5X Carrier Fi...
Page 5 TAPE FORMAT for Micro Pak Package Tape Number Cavity Cover Tape Designator Section Cavities Status Status Leader (Start End) 125 (typ) Empty Sealed L6X Carrier Filled Sealed Trailer (Hub End) 75 (typ)...
Page 6 Physical Dimensions inches (millimeters) unless otherwise noted 5-Lead SOT23, JEDEC MO-178, 1.6mm Package Number MA05B www.fairchildsemi.com
Page 7 Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 5-Lead SC70, EIAJ SC-88a, 1.25mm Wide Package Number MAA05A www.fairchildsemi.com
Page 8 Physical Dimensions inches (millimeters) unless otherwise noted (Continued) Pb-Free 6-Lead Micro Pak, 1.0mm Wide Package Number MAC06A www.fairchildsemi.com
Page 9 7S 384 1-B it L er B s S itch DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD ...

Manual Details

Brand Fairchild
Pages 9
File Size 211.28 KB
Published July 12, 2026
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Frequently Asked Questions

How is the bus connection established using this switch?

When the Enable (OE) signal is LOW, Port A connects to Port B; when OE is HIGH, the switch opens and a high-Z state exists.

What temperature range does the device support for operation?

The operating temperature range is -40°C to +85°C.

Are there limitations regarding life support use?

No, Fairchild's products are not authorized for use as critical components in life support devices or systems without explicit written approval.