SN74CB3Q16811

Features:

` Member of the Texas Instruments Widebus™ Family
` SN74CB3Q Bus Switches Are Equivalent to IDTQS3VH Bus Switches
` 5-V Tolerant I/Os With Device Powered Up or Powered Down
` Low and Flat ON-State Resistance (r_on) Characteristics Over Operating Range (r_on = 5 Typ)
` Rail-to-Rail Switching on Data I/O Ports
    0- to 5-V Switching With 3.3-V V<sub>CC</sub>
    0- to 3.3-V Switching With 2.5-V V<sub>CC</sub>
` B-Port Outputs Are Precharged by Bias  Voltage (BIASV) to Minimize Signal Distortion During Live Insertion and
    Hot Plugging
` Supports PCI Hot Plug
` Bidirectional Data Flow With Near-Zero Propagation Delay
` Low Input/Output Capacitance Minimizes Loading and Signal Distortion (C<sub>io(OFF)</sub> = 4 pF Typ)
` Fast Switching Frequency (f_ON = 20 MHz Max)
` Data and Control Inputs Provide Undershoot Clamp Diodes
` Low Power Consumption (I_CC = 0.75 mA Typ)
` V<sub>CC</sub> 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
` I_off 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

Application

PCI Hot Plug, Hot Docking,Memory Interleaving, Bus  Isolation,  andLow-Distortion Signal Gating




Pinout




Specifications

			MIN	MAX	UNIT
VCC          Supply voltage range			0.5	4.6	V
BIASV       BIAS supply voltage range			0.5	7	V
VIN          Control input voltage range(2) (3)			0.5	7	V
VI/O        Switch I/O voltage range(2) (3) (4)			0.5	7	V
IIK          Control input clamp current		VIN < 0		-50	mA
II/OK       I/O port clamp current		VI/O < 0		-50	mA
II/O        ON-state switch current(5)				±64	mA
Continuous current through VCC or GND				±100	mA
JA Package thermal impedance(6)	DGG package			64	/W
	DGV package			48
	DL package			56
Tstg Storage temperature range			-65	150

(1) Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the
     device. These are stress ratings only, and functional operation of the device at these or any other
     conditions  beyond those indicated under "recommended operating conditions" is not implied. Exposure
     to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) All voltages are with respect to ground, unless otherwise specified.
(3) The input and output voltage ratings may be exceeded if the input and output clamp-current ratings
      are observed.
(4) V_I and V_O are used to denote specific conditions for V_I/O.
(5) I_I and I_O are used to denote specific conditions for I_I/O.
(6) The package thermal impedance is calculated in accordance with JESD 51-7.

Description

The SN74CB3Q16811 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 (r_on). 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 SN74CB3Q16811 provides an optimized interface solution ideally suited for broadband communications, networking, and data-intensive computing systems.