The QS3253 is a high-speed CMOS TTL-compatible dual 4:1 multiplexer/ demultiplexer with 3-state outputs. The QS3253 is function and pinout compatible version of the 74F253, 74FCT253, and the 74ALS/AS/ LS253 dual 4:1 multiplexers. The low ON resistance of the QS3253 allows inputs to be connected to outputs without adding propagation delay and without generating additional ground bounce noise. The QS3253 operates at -40C to +85C.

Features

  • Enhanced N channel FET with no inherent diode to Vcc
  • 5 ohm bidirectional switches connect inputs to outputs
  • Zero propagation delay, zero ground bounce
  • Undershoot clamp diodes on all switch and control inputs
  • TTL-compatible control inputs
  • Available in 16 pin QSOP and S1 packages

Product Options

Orderable Part ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
QS3253QG Active PCG16 QSOP 16 C Yes Tube
Availability
QS3253QG8 Active PCG16 QSOP 16 C Yes Reel
Availability
QS3253S1G Active DCG16 SOIC 16 C Yes Tube
Availability
QS3253S1G8 Active DCG16 SOIC 16 C Yes Reel
Availability

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
QS3253 Datasheet Datasheet PDF 217 KB
Application Notes & White Papers
AN-11: 5V and 3V Conversion with Zero Delay Application Note PDF 346 KB
Quickswitch Basics Application Note PDF 83 KB
TN-07: Analysis of QuickSwitch Behavior Application Note PDF 102 KB
AN-13: Converting TTL to Hot Plug Application Note PDF 85 KB
AN-09: CMOS Bus Switches Provide 0 Delay Application Note PDF 121 KB
AN-19: Space Reduction Via Placement Application Note PDF 41 KB
AN-20: Board Assembly for 0.4mm Pin Surface Mounts Application Note PDF 62 KB
AN-17: Peripheral Isolation in Notebook Computers Application Note PDF 68 KB
PCNs & PDNs
PCN# : A1602-01(R1) Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 611 KB
PCN# : A1602-01 Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 611 KB
PCN#: A-0410-02, Change IDT marking logo with new IDT gridless w Product Change Notice PDF 24 KB
PCN# A-0508-02: OSET Alternate Assembly Location for Green Product Change Notice PDF 18 KB
PCN#A-0504-02R1: Assembly Transfer IDT-Manila to OSE-Ph Product Change Notice PDF 16 KB
PCN#: TB-0504-01, Transfer Test & Backend from IDT-Manila to IDT Product Change Notice PDF 35 KB
PCN#: A-0504-02, Transfer assembly facility IDT-Manila to OSE-Ph Product Change Notice PDF 47 KB
PCN # A-0406-06 Qualify OSE Philippines for SOIC Product Change Notice PDF 100 KB
PCN#:A-0401-01, new m/c G600 & 8290 d/a material Product Change Notice PDF 196 KB
PCN#:A-0312-02, new die attach material - 8290 Product Change Notice PDF 116 KB
PCN#:A-0312-01, new mold compound material - G600 Product Change Notice PDF 109 KB
PCN Addendum # L0203-10R1 Fab 2 to Fab 4 Transfer Product Change Notice PDF 110 KB
PCN# G-0203-05 Mold Compound Product Change Notice PDF 40 KB
PCN# L0203-10 Fab Transfer from Fab 2 to Fab 4 Product Change Notice PDF 27 KB
PCN# G0106-01, Moisture Sensitive Label Change Product Change Notice PDF 274 KB
PCN# G0005-01, Laser Top Mark Product Change Notice PDF 24 KB
Other
PDN# L_05_01: Obsolescence Notice ALL PDF 130 KB

Software & Tools

Title Other Languages Type Format File Size Date
QS3253 Hspice Model Model - HSPICE ZIP 5 KB
QS3253 IBIS Model Model - IBIS ZIP 4 KB