FSTD16211 − 24-Bit Bus Switch with Level Shifting


The Fairchild Switch FSTD16211 provides 24-bits of high-speed CMOS TTL-compatible bus switching. The low On Resistance of the switch allows inputs to be connected to outputs without adding propagation delay or generating additional ground bounce noise. A diode to VCC has been integrated into the circuit to allow for level shifting between 5V inputs and 3.3V outputs.

The device is organized as a 12-bit or 24-bit bus switch. When OE#1 is LOW, the switch is ON and Port 1A is connected to Port 1B. When OE#2 is LOW, Port 2A is connected to Port 2B. When OE#1/2 is HIGH, a high impedance state exists between the A and B Ports.

Download Datasheet Buy Products Request Free Samples Product Availability

Product Status/Pricing/Packaging

Product Product & Eco Status *Pricing Packaging & Packing Info **Package Marking Convention Qualification Support Compliance Certificates
0 FSTD16211MTDX Full Production
Green as of May 2012
$1.232  Details
1.1 x 6.1 x 14mm

Line 1:$Y (Fairchild logo)
&Z (Plant Code)
&2 (2-Digit Date Code) &K
Line 2:FSTD16211
FIT :  6.5  
Moisture Sensitivity Level (MSL) :  2  
Max Reflow Temp :  260  


  • 4ohm switch connection between two ports
  • Voltage level shifting
  • Minimal propagation delay through the switch
  • Low lCC
  • Zero bounce in flow-through mode
  • Control inputs compatible with TTL level
  • Also packaged in plastic Fine-Pitch Ball Grid Array (FBGA)


  • Media Tablets
  • Storage & Peripherals
  • Mobile Handsets
  • Wireless LAN Card & Broadband Access
  • PMP/MP3 Players

Application Notes

© Copyright Fairchild Semiconductor. All rights reserved. Privacy Policy | Site Terms & Conditions | Standard Terms & Conditions of Sale | Trademarks | Site Map | IPC Saving our world 1mW at a time
  Knowledge Base Support Request Form.
  Slide to enable Submit button:
Locked Unlocked