SN74CB3Q16244

Features:

• 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 (r on ) Characteristics Over Operating Range (r on = 5 Ω Typ)
• Rail-to-Rail Switching on Data I/O Ports
  0- to 5-V Switching With 3.3-V V CC
  0- to 3.3-V Switching With 2.5-V V CC
• Bidirectional Data Flow With Near-Zero Propagation Delay
• Low Input/Output Capacitance Minimizes Loading and Signal Distortion (C io(OFF) = 4 pF Typ)
• Fast Switching Frequency (f OE = 20 MHz Max)
• Data and Control Inputs Provide Undershoot Clamp Diodes
• Low Power Consumption (ICC = 1 mA Typ)
• V 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 Applications:
  PCI Interface, Differential Signal Interface, Memory Interleaving, Bus Isolation,


Pinout




Specifications

		MIN MAX	UNIT
VCC Supply voltage range (2)		0.5 4.6	V
V CCControl input voltage range (2) (3)		0.5 7	V
V I/O Switch I/O voltage range (2) (3) (4)		0.5 7	V
VIK/O Switch I/O voltage range (2) (3) (4)	VIN < 0	-50	mA
II/OK port clamp current	VI/O < 0	-50	mA
I ON-state switch current(5)		± 64	mA
Continuous current through VCC or GND		± 100	mA
JA Package thermal impedance (6)	DGG package	70	° C/W
	DGV package	58
	DL package	63
Tstg Storage temperature range		65 150	° C

Description

The SN74CB3Q16244 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 SN74CB3Q16244 provides an optimized interface solution ideally suited for broadband communications, networking, and data-intensive computing systems.

The SN74CB3Q16244 is organized as four 4-bit bus switches with separate output-enable (1 OE, 2 OE , 3 OE , 4 OE ) inputs. It can be used as four 4-bit bus switches, two 8-bit bus switches, or one 16-bit bus switch. When OE is low, the associated 4-bit bus switch is ON, and the A port is connected to the B port, allowing bidirectional data flow between ports. When OE is high, the associated 4-bit bus switch is OFF, and a high-impedance state