FSTD3306MTCX ,2-Bit Low Power Bus Switch with Level ShiftingFeaturesThe FSTD3306 is a 2-bit ultra high-speed CMOS FET bus
FSTD3306MTC-FSTD3306MTCX
2-Bit Low Power Bus Switch with Level Shifting
FSTD3306 2-Bit Low Power Bus Switch with Level Shifting February 2001 Revised February 2001 FSTD3306 2-Bit Low Power Bus Switch with Level Shifting General Description Features The FSTD3306 is a 2-bit ultra high-speed CMOS FET busTypical 3Ω switch resistance at 5.0V V , V = 0V CC IN switch with enhanced level shifting circuitry and with TTL- Level shift facilitates 5V to 3.3V interfacing compatible active LOW control inputs. The low on resis- Minimal propagation delay through the switch tance of the switch allows inputs to be connected to out- Power down high impedance input/output puts with minimal propagation delay and without generating additional ground bounce noise. The device isZero bounce in flow through mode organized as a 2-bit switch with independent bus enable TTL compatible active LOW control inputs (BE) controls. When BE is LOW, the switch is ON and Port Control inputs are overvoltage tolerant A is connected to Port B. When BE is HIGH, the switch is OPEN and a high-impedance state exists between the two ports. Reduced voltage drive to the gate of the FET switch permits nominal level shifting of 5V to 3V through the switch. Control inputs tolerate voltages up to 5.5V indepen- dent of V . CC Ordering Code: Order Number Package Number Package Description FSTD3306MTC MTC08 8-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 (Top View) Pin Descriptions Function Table Pin Name Description Bus Enable Input (BE) Function A Bus A Switch I/O L B Connected to A B Bus B Switch I/O H Disconnected H = HIGH Logic Level BE Bus Enable Input L = LOW Logic Level © 2001 DS500480
