Fairchild FSTD16211 24-Bit Bus Switch with Level Shifting Data Sheet
Summary
The FSTD16211 is a high-speed 24-bit bus switch designed for connecting data lines between two ports. Utilizing CMOS TTL compatibility, this device facilitates seamless signal switching while incorporating level shifting capabilities (e.g., 5V inputs to 3.3V outputs) and minimizing ground bounce noise. This manual provides comprehensive technical details, including electrical specifications, operational parameters, connection diagrams, and package options for engineers building digital systems requiring reliable high-capacity bus data transfer.
Page 1 Text Content
16211 24-B it B s S itch ith evel S iftin
June 2000 Revised April 2005
FSTD16211 24-Bit Bus Switch with Level Shifting General Description Features The Fairchild Switch FSTD16211 provides 24-bits of high- ■4: switch connection between two ports speed CMOS TTL-compatible bus switching. The low On
■Voltage level shifting
Resistance of the switch allows inputs to be connected to
■Minimal propagation delay through the switch
outputs without adding propagation delay or generating
■Low l CC
additional ground bounce noise. A diode to VCC has been
integrated into the circuit to allow for level shifting between ■Zero bounce in flow-through mode
5V inputs and 3.3V outputs. ■Control inputs compatible with TTL level The device is organized as a 12-bit or 24-bit bus switch. ■Also packaged in plastic Fine-Pitch Ball Grid Array When OE1 is LOW, the switch is ON and Port 1A is con- (FBGA) nected to Port 1B. When OE2 is LOW, Port 2A is connected to Port 2B. When OE1/2 is HIGH, a high impedance state exists between the A and B Ports.
Ordering Code: Order Number Package Number Package Description FSTD16211G BGA54A 54-Ball Fine-Pitch Ball Grid Array (FBGA), JEDEC MO-205, 5.5mm Wide (Note 1)(Note 2) [TAPE and REEL] FSTD16211MTD MTD56 56-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide (Note 2) Note 1: Ordering code “G” indicates Trays. Note 2: Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Logic Diagram
© 2005 Fairchild Semiconductor Corporation DS500313 www.fairchildsemi.com
Page Summary Contents For Fairchild FSTD16211 24-Bit Bus Switch with Level Shifting Data Sheet
Manual Details
| Brand | Fairchild |
|---|---|
| Pages | 7 |
| File Size | 312.69 KB |
| Published | June 20, 2026 |
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Frequently Asked Questions
Does this device support level shifting between different voltages?
Yes, it includes an integrated diode to allow for level shifting between 5V inputs and 3.3V outputs.
What signal state keeps the bus switch active?
The switch is ON when OE is LOW; a high impedance state exists when OE is HIGH.
What are the available packaging types for the FSTD16211?
It is ordered in BGA54A or MTD56 packages, and Tape and Reel options require appending 'X' to the ordering code.
Are there restrictions regarding life support applications?
The product is not authorized for use as critical components in life support devices without express written approval from the President of Fairchild Semiconductor Corporation.