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PDF FSTU16861MTD Data sheet ( Hoja de datos )
| Número de pieza | FSTU16861MTD | |
| Descripción | 20-Bit Bus Switch with −2V Undershoot Protection | |
| Fabricantes | Fairchild Semiconductor | |
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May 2001
Revised May 2001
FSTU16861
20-Bit Bus Switch with −2V Undershoot Protection
General Description
The Fairchild Switch FSTU16861 provides 20-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.
The device is organized as a 10-bit or 20-Bit bus switch.
When OE1 is LOW, the switch is ON and Port 1A is con-
nected to Port 1B. When OE2 is LOW, Port 2A is connected
to Port 2B. When OEX is HIGH, a high impedance state
exists between the A and B Ports. The A and B Ports are
protected against undershoot to support an extended
range to 2.0V below ground. Fairchild’s integrated Under-
shoot Hardened Circuit (UHC) senses undershoot at the
I/O and responds by preventing voltage differentials from
developing and turning the switch on. When OE is HIGH,
the switch is OPEN and a high-impedance state exists
between the two ports.
Features
s Undershoot hardened to −2V (A and B Ports)
s 4Ω switch connection between two ports
s Minimal propagation delay through the switch
s Low lCC
s Zero bounce in flow-through mode
s Control inputs compatible with TTL level
s See Application Note AN-5008 for details
Ordering Code:
Order Number Package Number
Package Description
FSTU16861MTD
MTD48
48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
UHC is a trademark of Fairchild Semiconductor Corporation.
© 2001 Fairchild Semiconductor Corporation DS500422
www.fairchildsemi.com
1 page  
AC Loading and Waveforms
Note: Input driven by 50Ω source terminated in 50Ω
Note: CL includes load and stray capacitance
Note: Input PRR = 1.0 MHz, tW = 500 ns
FIGURE 2. AC Test Circuit
FIGURE 3. AC Waveforms
5 www.fairchildsemi.com
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet FSTU16861MTD.PDF ] | |
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