• High-Bandwidth Data Path (Up to 500 MHz)(1)
• 5-V Tolerant I/Os With Device Powered Up or Powered Down
• Low and Flat ON-State Resistance (ron) Characteristics Over Operating Range (ron=4ΩTypical)
• Rail-to-Rail Switching on Data I/O Ports
  • 0- to 5-V Switching With 3.3-VVCC
  • 0- to 3.3-V Switching With 2.5-VVCC
• Bidirectional Data Flow With Near-Zero Propagation Delay
• Low Input/Output Capacitance Minimizes Loading and Signal Distortion (Cio(OFF)=3.5pFTypical)
• Fast Switching Frequency (fOE = 20MHzMax)
• Data and Control Inputs Provide Undershoot Clamp Diodes
• Low Power Consumption (ICC = 0.6mA Typical)
• VCC Operating Range From 2.3V to 3.6V
• Data I/Os Support 0- to 5-V Signal 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 and 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, ClassII)
  • 1000-V Charged-Device Model (C101)
• Supports Both Digital and Analog Applications: USB Interface, Differential Signal Interface Bus Isolation, Low-Distortion Signal Gating (1)

(1) 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, (SCDA008).

• Video Broadcasting: IP-Based Multi-Format Transcoder
• Video Communications System

The SN74CB3Q3253 device is a high-bandwidth FET bus switch using 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 and output (I/O) ports.

ORDER NUMBER	PACKAGE	BODY SIZE (NOM)
SN74CB3Q3253DBQ	SSOP (16)	4.90 mm × 3.90 mm
SN74CB3Q3253DGV	TVSOP (16)	3.60 mm × 4.40 mm
SN74CB3Q3253RGY	VQFN (16)	4.00 mm × 3.50 mm
SN74CB3Q3253PW	TSSOP (16)	5.00 mm × 4.40 mm

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