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SN74CBT16390

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5-V, 16-input 32-output, fanout bus switch

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Data sheet

SN74CBT16390

ACTIVE
Data sheet Order now

Product details

Configuration 2:1 SPDT Number of channels 16 Power supply voltage - single (V) 5 Protocols Analog Ron (typ) (Ω) 5 ON-state leakage current (max) (µA) 1 Bandwidth (MHz) 200 Operating temperature range (°C) -40 to 85 Features Break-before-make Input/output continuous current (max) (mA) 128 Rating Catalog Drain supply voltage (max) (V) 5.5 Supply voltage (max) (V) 5.5
Configuration 2:1 SPDT Number of channels 16 Power supply voltage - single (V) 5 Protocols Analog Ron (typ) (Ω) 5 ON-state leakage current (max) (µA) 1 Bandwidth (MHz) 200 Operating temperature range (°C) -40 to 85 Features Break-before-make Input/output continuous current (max) (mA) 128 Rating Catalog Drain supply voltage (max) (V) 5.5 Supply voltage (max) (V) 5.5
SSOP (DL) 56 190.647 mm² 18.42 x 10.35 TSSOP (DGG) 56 113.4 mm² 14 x 8.1 TVSOP (DGV) 56 72.32 mm² 11.3 x 6.4
  • Member of Texas Instruments' WidebusTM Family
  • 5- Switch Connection Between Two Ports
  • TTL-Compatible Input Levels
  • Latch-Up Performance Exceeds 250 mA Per JESD 17
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
    • 200-V Machine Model (A115-A)

Widebus is a trademark of Texas Instruments.
  • Member of Texas Instruments' WidebusTM Family
  • 5- Switch Connection Between Two Ports
  • TTL-Compatible Input Levels
  • Latch-Up Performance Exceeds 250 mA Per JESD 17
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
    • 200-V Machine Model (A115-A)

Widebus is a trademark of Texas Instruments.

The SN74CBT16390 is a 16-bit to 32-bit switch used in applications in which two separate data paths must be multiplexed onto, or demultiplexed from, a single path. This device can be used for memory interleaving, in which two different banks of memory must be addressed simultaneously. This device also can be used to connect or isolate the PCI bus to one or two slots simultaneously.

Two output enables (OE1\ and OE2\) control the data flow. When OE1\ is low, A port is connected to 1B port. When OE2\ is low, A port is connected to 2B port. When both OE1\ and OE2\ are low, the A port is connected to both 1B and 2B ports. The control inputs can be driven with a 5-V CMOS, 5-V TTL, or an LVTTL driver.

The SN74CBT16390 is a 16-bit to 32-bit switch used in applications in which two separate data paths must be multiplexed onto, or demultiplexed from, a single path. This device can be used for memory interleaving, in which two different banks of memory must be addressed simultaneously. This device also can be used to connect or isolate the PCI bus to one or two slots simultaneously.

Two output enables (OE1\ and OE2\) control the data flow. When OE1\ is low, A port is connected to 1B port. When OE2\ is low, A port is connected to 2B port. When both OE1\ and OE2\ are low, the A port is connected to both 1B and 2B ports. The control inputs can be driven with a 5-V CMOS, 5-V TTL, or an LVTTL driver.
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Technical documentation

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Type Title Date
* Data sheet 16-Bit To 32-Bit FET Multiplexer/Demultiplexer Bus Switch datasheet (Rev. E) 23 Oct 2000
Application note Selecting the Correct Texas Instruments Signal Switch (Rev. E) PDF | HTML 02 Jun 2022
Application note Multiplexers and Signal Switches Glossary (Rev. B) PDF | HTML 01 Dec 2021
Application note Implications of Slow or Floating CMOS Inputs (Rev. E) 26 Jul 2021
Selection guide Little Logic Guide 2018 (Rev. G) 06 Jul 2018
Selection guide Logic Guide (Rev. AB) 12 Jun 2017
Application note How to Select Little Logic (Rev. A) 26 Jul 2016
Application note Understanding and Interpreting Standard-Logic Data Sheets (Rev. C) 02 Dec 2015
User guide LOGIC Pocket Data Book (Rev. B) 16 Jan 2007
More literature Digital Bus Switch Selection Guide (Rev. A) 10 Nov 2004
Product overview Design Summary for WCSP Little Logic (Rev. B) 04 Nov 2004
Application note Semiconductor Packing Material Electrostatic Discharge (ESD) Protection 08 Jul 2004
Application note Selecting the Right Level Translation Solution (Rev. A) 22 Jun 2004
User guide Signal Switch Data Book (Rev. A) 14 Nov 2003
More literature CBT RAID Application Clip 12 Jun 2003
Application note Bus FET Switch Solutions for Live Insertion Applications 07 Feb 2003
Application note Texas Instruments Little Logic Application Report 01 Nov 2002
Application note TI IBIS File Creation, Validation, and Distribution Processes 29 Aug 2002
More literature Standard Linear & Logic for PCs, Servers & Motherboards 13 Jun 2002
Application note 16-Bit Widebus Logic Families in 56-Ball, 0.65-mm Pitch Very Thin Fine-Pitch BGA (Rev. B) 22 May 2002
Application note Flexible Voltage-Level Translation With CBT Family Devices 20 Jul 1999
User guide CBT (5-V) And CBTLV (3.3-V) Bus Switches Data Book (Rev. B) 01 Dec 1998
Application note 3.3-V to 2.5-V Translation with Texas Instruments Crossbar Technology (Rev. A) 03 Apr 1998
Application note Migration From 3.3-V To 2.5-V Power Supplies For Logic Devices 01 Dec 1997
Application note 5-V To 3.3-V Translation With the SN74CBTD3384 (Rev. B) 01 Mar 1997
Application note Understanding Advanced Bus-Interface Products Design Guide 01 May 1996

Design & development

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Simulation model

SN74CBT16390 IBIS Model

SCDM004.ZIP (16 KB) - IBIS Model
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SSOP (DL) 56 View options
TSSOP (DGG) 56 View options
TVSOP (DGV) 56 View options
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