U74CBT3257C

DESCRIPTION 

The UTC U74CBT3257C is a 4-BIT 1-OF-2 FET multiplexer/

demultiplexer with Low ON-State Resistance (RON) and 

TTL-compatibility. 

FEATURES 

* Undershoot Protection for Off-Isolation on A and B Ports Up to -2V

* VCC Operating Range From 4V to 5.5V 

* Bidirectional Data Flow, With Near-Zero Propagation Delay 

* Low ON-State Resistance (RON) Characteristics (RON =4Ω Typ.) 

* Low Power Consumption ICC =3μA (Max) 

* Data and Control Inputs Provide Undershoot Clamp Diodes 

* Data I/Os Support 0 to 5-V Signaling Levels 

  (0.8V, 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, 5V) 

* Control Inputs Can be Driven by TTL or 5V/3.3V CMOS Outputs 

* IOFF Supports Partial-Power-Down Mode Operation 

* Supports I²C Bus Expansion 

规格书U74CBT3257C