SN74CBT16214C 12 ビット、1:3 FET マルチプレクサ/デマルチプレクサ、-2 V アンダーシュート保護機能付属 | TIJ.co.jp

SN74CBT16214C
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12 ビット、1:3 FET マルチプレクサ/デマルチプレクサ、-2 V アンダーシュート保護機能付属

12 ビット、1:3 FET マルチプレクサ/デマルチプレクサ、-2 V アンダーシュート保護機能付属 - SN74CBT16214C
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概要

The SN74CBT16214C is a high-speed TTL-compatible FET multiplexer/demultiplexer with low ON-state resistance (ron), allowing for minimal propagation delay. Active Undershoot-Protection Circuitry on the A and B ports of the SN74CBT16214C 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 SN74CBT16214C is a 12-bit 1-of-3 multiplexer/demultiplexer. The select (S0, S1, S2) inputs control the data path of each multiplexer/demultiplexer. When the multiplexer/demultiplexer is enabled, the A port is connected to the B port, allowing bidirectional data flow between ports. When the multiplexer/demultiplexer is disabled, a high-impedance state exists between the A and B ports.

This 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.

To ensure the high-impedance state during power up or power down, each select input should be tied to GND through a pulldown resistor; the minimum value of the resistor is determined by the current-sourcing capability of the driver.

特長

  • Member of the Texas Instruments Widebus™ 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 (ron) Characteristics (ron = 3 Typical)
  • Low Input/Output Capacitance Minimizes Loading and Signal Distortion
       (Cio(OFF) = 5.5 pF Typical)
  • Data and Control Inputs Provide Undershoot Clamp Diodes
  • Low Power Consumption
       (ICC = 3 µA Max)
  • VCC Operating Range From 4 V to 5.5 V
  • Data I/Os Support 0 to 5-V Signaling Leveles (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
  • TTL-Compatible Control Inputs
  • 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, USB Interface, Bus Isolation, Low-Distortion Signal Gating

Widebus is a trademark of Texas Instruments.

機能一覧

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Part number オーダー・オプション Configuration Number of channels (#) Ron (Typ) (Ohms) Bandwidth (MHz) Rating Operating temperature range (C) Package Group Input/output continuous current (Max) (mA) Features CON (Typ) (pF)
SN74CBT16214C ご注文 3:1     12     3     200     Catalog     -40 to 85     SSOP | 56
TSSOP | 56    
128     Powered-off protection
Undershoot protection    
18