SCDS008M May   1993  – June 2015 SN74CBT16214

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Switching Characteristics
  7. 7 Parameter Measurement Information
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
    4. 8.4 Device Functional Modes
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curve
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Community Resources
    2. 12.2 Trademarks
    3. 12.3 Electrostatic Discharge Caution
    4. 12.4 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

パッケージ・オプション

デバイスごとのパッケージ図は、PDF版データシートをご参照ください。

メカニカル・データ（パッケージ｜ピン）
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  • DL|56
サーマルパッド・メカニカル・データ
発注情報

8 Detailed Description

8.1 Overview

The SN74CBT16214 provides 12 bits of high-speed TTL-compatible bus switching between three separate ports. The low ON-state resistance of the switch allows connections to be made with minimal propagation delay.

The device operates as a 12-bit bus-select switch via the data-select (S0–S2) terminals.

8.2 Functional Block Diagram

SN74CBT16214 scds008_logic_diagram.gif

8.3 Feature Description

The typical RON for each port is 5 Ω, reducing the amount of signal attenuation through the switch from higher impedance switches. Inputs operate with TTL-compatible voltages.

8.4 Device Functional Modes

Table 1 lists the functional modes for SN74CBT16214.

Table 1. Function Table

INPUTS INPUT/OUTPUT
A		 FUNCTION
S2 S1 S0
L L L Z Disconnect
L L H B1 A port = B1 port
L H L B2 A port = B2 port
L H H Z Disconnect
H L L Z Disconnect
H L H B3 A port = B3 port
H H L B1 A port = B1 port
H H H B2 A port = B2 port