SN74CB3Q3244DBQR

8位FET总线开关2.5V / 3.3V的低电压高带宽总线开关 8 BIT FET BUS SWITCH 2.5V/3.3 V LOW VOLTAGE HIGH BANDWIDTH BUS SWITCH

description/ordering information

The SN74CB3Q3244 is a high-bandwidth FET bus switch utilizing a charge pump to elevate the gate voltage of the pass transistor, providing a low and flat ON-state resistance ron. The low and flat ON-state resistance allows for minimal propagation delay and supports rail-to-rail switching on the data input/output I/O ports.

High-Bandwidth Data Path Up To 500 MHz†

5-V-Tolerant I/Os with Device Powered Up or Powered Down

Low and Flat ON-State Resistance ron Characteristics Over Operating Rangeron = 4 ΩTypical

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

Bidirectional Data Flow, With Near-Zero Propagation Delay

Low Input/Output Capacitance Minimizes Loading and Signal DistortionCioOFF= 3.5 pF Typical

Fast Switching Frequency fOE= 20 MHz Max

Data and Control Inputs Provide Undershoot Clamp Diodes

Low Power ConsumptionICC = 0.7 mA Typical

VCCOperating Range From 2.3 V to 3.6 V

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

Control Inputs Can Be Driven by TTL or 5-V/3.3-V CMOS Outputs

Ioff Supports Partial-Power-Down Mode Operation

Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II

ESD Performance Tested Per JESD 22

  − 2000-V Human-Body Model A114-B, Class II

  − 1000-V Charged-Device Model C101

Supports Both Digital and Analog

Applications: Differential Signal Interface, Memory Interleaving, Bus Isolation, Low-Distortion Signal Gating