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PDF FSTU16245MTD Data sheet ( Hoja de datos )
| Número de pieza | FSTU16245MTD | |
| Descripción | 16-Bit Bus Switch with −2V Undershoot Protection | |
| Fabricantes | Fairchild Semiconductor | |
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April 2001
Revised April 2001
FSTU16245
16-Bit Bus Switch with −2V Undershoot Protection
General Description
The Fairchild Switch FSTU16245 provides 16-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 16-bit switch. There are two
8-bit switches with separate output enable inputs. When
OE is LOW, the switch is ON and Port a is connected to
Port B. When OE is HIGH, the switch is OFF and 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 inte-
grated Undershoot 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-imped-
ance state exists between the two ports.
Features
I Undershoot hardened to −2V (A and B Ports)
I 4Ω switch connection between two ports.
I Minimal propagation delay through the switch.
I Low lCC.
I Zero bounce in flow-through mode.
I Control inputs compatible with TTL level.
I See Application Note AN-5008 for details
Ordering Code:
Order Number Package Number
Package Description
FSTU16245MTD
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.
Connection Diagram
Pin Descriptions
Pin Name
OEn
1An, 2An, 3An, 4An
1Bn, 2Bn, 3Bn, 4Bn
NC
Description
Output Enable Input (Active LOW)
Bus A
Bus B
No Internal Connection
UHC is a trademark of Fairchild Semiconductor Corporation.
© 2001 Fairchild Semiconductor Corporation DS500432
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 FSTU16245MTD.PDF ] | |
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