Fairchild FST3384 Data Handbook

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3384 10-B it L er B s S itch

September 1997 Revised December 1999

FST3384 10-Bit Low Power Bus Switch General Description Features The Fairchild Switch FST3384 provides 10 bits of high- ■4Ω switch connection between two ports speed CMOS TTL-compatible bus switches. The low on

■Minimal propagation delay through the switch

resistance of the switch allows inputs to be connected to

■Ultra low power with < 0.1 µA typical ICC

outputs without adding propagation delay or generating

additional ground bounce noise. The device is organized ■Zero ground bounce in flow-through mode

as two 5-bit switches with separate bus enable (OE) sig- ■Control inputs compatible with TTL level nals. When OE is LOW, the switch is ON and Port A is con- nected to Port B. When OE is HIGH, the switch is OPEN and a high-impedance state exists between the two ports.

Ordering Code: Order Number Package Number Package Description FST3384WM M24B 24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide FST3384QSC MQA24 24-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150 Wide FST3384MTC MTC24 24-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.

Logic Diagram Connection Diagram

Pin Descriptions Truth Table

Pin Names Description OEA OEB B0–B4 B5–B9 Function

OEA, OEB Bus Switch Enable A0–A4 A5–A9 Connect

A0–A9 Bus A A0–A4 HIGH-Z State Connect

B0–B9 Bus B HIGH-Z State A5–A9 Connect

HIGH-Z State HIGH-Z State Disconnect

© 1999 Fairchild Semiconductor Corporation DS500046 www.fairchildsemi.com

Print form created on December 13, 1999 4:03