Overview: SN74CB3Q3244 8ĆBIT FET BUS SWITCH 2.5ĆV/3.3ĆV LOWĆVOLTAGE HIGHĆBANDWIDTH BUS SWITCH
SCDS154B − OCTOBER 2003 − REVISED DECEMBER 2004 D High-Bandwidth Data Path
(Up To 500 MHz†)
D 5-V-Tolerant I/Os with Device Powered Up
or Powered Down
D Low and Flat ON-State Resistance (ron)
Characteristics Over Operating Range (ron = 4 Ω Typical)
D Rail-to-Rail Switching on Data I/O Ports
− 0- to 5-V Switching With 3.3-V VCC − 0- to 3.3-V Switching With 2.5-V VCC
D Bidirectional Data Flow, With Near-Zero
Propagation Delay
D Low Input/Output Capacitance Minimizes
Loading and Signal Distortion
(Cio(OFF) = 3.5 pF Typical)
D Fast Switching Frequency
(fOE = 20 MHz Max)
† For additional information regarding the performance
characteristics of the CB3Q family, refer to the TI
application report, CBT-C, CB3T, and CB3Q
Signal-Switch Families, literature number SCDA008. D Data and Control Inputs Provide
Undershoot Clamp Diodes
D Low Power Consumption
(ICC = 0.7 mA Typical)
D VCC Operating Range From 2.3 V to 3.6 V D Data I/Os Support 0- to 5-V Signaling
Levels (0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V, 5 V)
D Control Inputs Can Be Driven by TTL or
5-V/3.
