The SN74CB3T3125PWR is a high-speed TTL-compatible FET Bus Switch with low ON-state resistance (ron), allowing for minimal propagation delay. The device fully supports mixed-mode signal operation on all data I/O ports by providing voltage translation that tracks VCC. It supports systems using 5V TTL, 3.3V LVTTL and 2.5V CMOS switching standards, as well as user-defined switching levels. It is organized as four 1-bit bus switches with separate OE (1OE\, 2OE\, 3OE\, 4OE\\) inputs. It can be used as four 1-bit bus switches or as one 4-bit bus switch. When OE\ is low, the associated 1-bit bus switch is ON and the A port is connected to the B port, allowing bidirectional data flow between ports. When OE\ is high, the associated 1-bit bus switch is OFF and the high-impedance state exists between the A and B ports. This device is fully specified for partial-power-down applications using Ioff.
● Output voltage translation tracks VCC
● Supports mixed-mode signal operation on all data i/o ports
● Bidirectional data flow, with near-zero propagation delay
● Low ON-state resistance (ron) characteristics ron = 5R typical)
● Low input/output capacitance minimizes loading (Cio(OFF) = 4.5pF typical)
● Data and control inputs provide undershoot clamp diodes
● Low power consumption (ICC = 20µA maximum)
● Ioff Supports partial-power-down mode operation
● Latch-up performance exceeds 250mA per JESD 17
● Green product and no Sb/Br
