SN74CBT16210C

Features:

 Member of the Texas Instruments Widebus^TM Family
 Undershoot Protection for Off-Isolation on A and B Ports Up To −2 V
 Bidirectional Data Flow, With Near-Zero Propagation Delay
 Low ON-State Resistance (r_on) Characteristics (r_on = 3 Ω Typical)
 Low Input/Output Capacitance Minimizes Loading and Signal Distortion (C_io(OFF) = 5.5 pF Typical)
 Data and Control Inputs Provide Undershoot Clamp Diodes
 Low Power Consumption (I_CC = 3 µA Max)
 V_CC Operating Range From 4 V to 5.5 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
 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, Class II)
− 1000-V Charged-Device Model (C101)
 Supports Both Digital and Analog Applications: PCI Interface, Memory Interleaving, Bus Isolation, Low-Distortion Signal Gating



Pinout




Specifications

Supply voltage range, V_CC  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .−0.5 V to 7 V
Control input voltage range, V_IN (see Notes 1 and 2) . . . . . . . . . . −0.5 V to 7 V
Switch I/O voltage range, VI/O (see Notes 1, 2, and 3) . . . . . . . . .−0.5 V to 7 V
Control input clamp current, IIK (VIN < 0). . . . . . . . . . . . . . . . . . .  . . . . −50 mA
I/O port clamp current, I_I/OK (VI/O < 0) . . . . . . . . . . . . . . . . . . . . . . .. . .−50 mA
ON-state switch current, I_I/O (see Note 4) . . . . . . . . . . . . . . . . . . . .. . ±128 mA
Continuous current through Vor GND terminals  . . . . . . . . . .  . . . . . .  .±100 mA
Package thermal impedance, _JA (see Note 5): DGG package . . . .        70°C/W
                                                                           DGV package  . . .         58°C/W
                                                                           DL package  . . .           .63°C/W
Storage temperature range, T_stg . . . . . . . . . . . . . . . . . . . . . . ..−65°C to 150°C


Description

   The SN74CBT16210C is a high-speed TTL-compatible FET bus switch with low ON-state resistance (ron), allowing for minimal propagation delay. Active Undershoot-Protection Circuitry on the A and B ports of the SN74CBT16210C provides protection for undershoot up to −2 V by sensing an undershoot event and ensuring that the switch remains in the proper OFF state.

   The SN74CBT16210C is organized as two 10-bit bus switches with separate output-enable (1OE, 2OE) inputs. It can be used as two 10-bit bus switches or as one 20-bit bus switch. When OE is low, the associated 10-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 10-bit bus switch is OFF, and the high-impedance state exists between the A and B ports.

  This SN74CBT16210C device is fully specified for partial-power-down applications using Ioff. The Ioff feature ensures that damaging current will not backflow through the device when it is powered down. The device has isolation during power off.

  To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.