FSTD3125 ,4-Bit Bus Switch with Level ShiftingFSTD3125 4-Bit Bus Switch with Level ShiftingJune 2001Revised June 2001FSTD31254-Bit Bus Switch wit ..
FSTD3125MTCX ,4-Bit Bus Switch with Level ShiftingFeaturesThe Fairchild Switch FSTD3125 provides four high-speed
FSTD3125
4-Bit Bus Switch with Level Shifting
FSTD3125 4-Bit Bus Switch with Level Shifting June 2001 Revised June 2001 FSTD3125 4-Bit Bus Switch with Level Shifting General Description Features The Fairchild Switch FSTD3125 provides four high-speed4Ω switch connection between two ports CMOS TTL-compatible bus switches. The low On Resis-Minimal propagation delay through the switch tance of the switch allows inputs to be connected to out- Low l CC puts without adding propagation delay or generating Zero bounce in flow-through mode additional ground bounce noise. A diode to V has been CC integrated into the circuit to allow for level shifting betweenControl inputs compatible with TTL level 5V inputs and 3.3V outputs.TruTranslation voltage translation from 5.0V inputs to The device is organized as four 1-bit switches with sepa- 3.3V outputs rate OE inputs. 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 FSTD3125M M14A 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow FSTD3125QSC MQA16 16-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150" Wide FSTD3125MTC MTC14 14-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. Connection Diagrams Pin Descriptions Pin Name Description Pin Assignment for SOIC and TSSOP OE , OE , OE , OE Bus Switch Enables 1 2 3 4 1A, 2A, 3A, 4A Bus A 1B, 2B, 3B, 4B Bus B NC Not Connected Truth Table Inputs Inputs/Outputs OE A, B LA = B Pin Assignment for QSOP HZ TruTranslation is a trademark of . © 2001 DS500448
