74CB3Q3257BQ数据手册集成电路（IC）的信号开关多路复用器解码器规格书PDF

描述 Description

The 74CB3Q3257 is a quad high-bandwidth single-pole, double-throw FET bus switch.The device features one select input (S) and one output enable input (OE). The switch is disabled when the OE input is HIGH. An internal charge-pump increases the gate voltage of the NMOS pass transistor. The result is improved RON and RON(flat) performance and the ability to switch 5 V signals when VCC = 3.3 V.

特性 Features

• Wide supply voltage range from 2.3 V to 3.6 V
• 0 V to 5 V switching with VCC = 2.5 V
• 0 V to 5 V switching with VCC = 3.3 V

• 4 Ω (typical) ON resistance
• 3.5 pF (typical) OFF-state capacitance
• High bandwidth 0.5 GHz (maximum)
• Low input/output capacitance minimizes loading and signal distortion
• Fast switching frequency fmax = 20 MHz (maximum)
• Low power consumption ICC = 0.4 mA (typical)
• 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 JESD78EClassIILevelA
• ESD protection:
• HBM ANSI/ESDA/JEDEC JS-001-2012 Class 2 exceeds 2 kV
• CDM JESD22-C101F exceeds 1000 V

• Specified from -40 °C to +85 °C

应用 Application

• Communication infrastructure
• Bus isolation
• Memory interleaving
• Sensor multiplexing