FSTU3384MTCX ,10-Bit Bus Switch with -2V Undershoot ProtectionFeaturesThe Fairchild Switch FSTU3384 provides 10 bits of high-
FSTU3384MTC-FSTU3384MTCX-FSTU3384QSCX
10-Bit Bus Switch with -2V Undershoot Protection
FSTU3384 10-Bit Bus Switch with −2V Undershoot Protection May 1999 Revised December 2000 FSTU3384 10-Bit Bus Switch with −2V Undershoot Protection General Description Features The Fairchild Switch FSTU3384 provides 10 bits of high-4Ω switch connection between two ports speed CMOS TTL-compatible bus switches. The low onUndershoot Hardened to -2.0V. resistance of the switch allows inputs to be connected to Minimal propagation delay through the switch outputs without adding propagation delay generating addi- Low l . tional ground bounce noise. Both the A Ports and the B CC Ports have “undershoot hardened” circuit protection to sup-Zero ground bounce in flow-through mode port an extended input range to 2.0V below ground. Fair- Control inputs compatible with TTL level child’s integrated Undershoot Hardened Circuit (UHC) See Applications Note AN-5008 for details. senses undershoot at the I/Os, and responds by preventing voltage differentials from developing and turning on the switch. The device is organized as two 5-bit switches with separate bus enable (OE) signals. When OE is LOW, the switch is ON and Port A is connected 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 FSTU3384WM M24B 24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide FSTU3384QSC MQA24 24-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150 Wide FSTU3384MTC 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 Truth Table Pin Descriptions OE OE B –B B –B Function 1 2 0 4 5 9 Pin Names Description LL A –A A –A Connect 0 4 5 9 OE , OE Bus Switch Enable 1 2 LH A –A HIGH-Z State Connect 0 4 A –A Bus A 0 9 H L HIGH-Z State A –A Connect 5 9 B –B Bus B 0 9 H H HIGH-Z State HIGH-Z State Disconnect UHC is a trademark of . © 2000 DS500195
