74CBTLV3257D,118

The 74CBTLV3257 provides a quad 1-of-2 high-speed multiplexer/demultiplexer with common select (S) and output enable (OE) inputs. The low ON resistance of the switch allows inputs to be connected to outputs without adding propagation delay or generating additional ground bounce noise. When pin OE(overline)=LOW, one of the two switches is selected (low-impedance ON-state) with pin S. When pin OE(overline)=HIGH, all switches are in the high-impedance OFF-state, independent of pin S. Schmitt trigger action at control input makes the circuit tolerant to slower input rise and fall times across the entire VCC range from 2.3 V to 3.6 V. To ensure the high-impedance OFF-state during power-up or power-down, OE should be tied to the VCC through a pull-up resistor. The minimum value of the resistor is determined by the current-sinking capability of the driver. This device is fully specified for partial power-down applications using IOFF. The IOFF circuitry disables the output, preventing the damaging backflow current through the device when it is powered down.

Key features

• Supply voltage range from 2.3 V to 3.6 V
• High noise immunity
• Complies with JEDEC standard: JESD8-5 (2.3 V to 2.7 V) JESD8-B/JESD36 (2.7 V to 3.6 V)
• 5 Ω switch connection between two ports
• Rail to rail switching on data I/O ports
• CMOS low power consumption
• Latch-up performance exceeds 250 mA per JESD78B Class I level A
• IOFF circuitry provides partial Power-down mode operation
• ESD protection:
• HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V
• CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V
• Multiple package options
• Specified from -40 ℃ to +85 ℃ and -40 ℃ to +125 ℃