DESCRIPTION/ORDERING INFORMATION
●The SN74CB3Q3245 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. The device also features low data I/O capacitance to minimize capacitive loading and signal distortion on the data bus. Specifically designed to support high-bandwidth applications, the SN74CB3Q3245 provides an optimized interface solution ideally suited for broadband communications, networking, and data-intensive computing systems.
●FEATURES
●• High-Bandwidth Data Path (up to 500 MHz (1))
●• Equivalent to IDTQS3VH384 Device
●• 5-V Tolerant I/Os With Device Powered Up or Powered Down
●• Low and Flat ON-State Resistance (ron) Characteristics Over Operating Range (ron = 4 Ω Typ)
●• 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 Distortion (Cio(OFF) = 3.5 pF Typ)
●• Fast Switching Frequency (fOE = 20 MHz Max)
●• Data and Control Inputs Provide Undershoot Clamp Diodes
●• Low Power Consumption (ICC = 1 mA Typical)
●• VCC Operating 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: PCI Interface, Differential Signal Interface, Memory Interleaving, Bus Isolation, Low-Distortion Signal Gating
