SN74CB3Q3257 Description
The SN74CB3Q3257 device 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). SN74CB3Q3257 SCDS135D SEPTEMBER 2003 REVISED JULY 2018 .ti.
SN74CB3Q3257 Key Features
- 1 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 Range (ron= 4 Ω Typical)
- 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 and Output Capacitance Minimizes Loading and Signal Distortion (Cio(OFF) = 3.5 pF Typical)
- Fast Switching Frequency (f OE = 20 MHz Maximum)
- Data and Control Inputs Provide Undershoot Clamp Diodes