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PDF IDTQS3VH16244 Data sheet ( Hoja de datos )
| Número de pieza | IDTQS3VH16244 | |
| Descripción | QUICKSWITCH PRODUCTS 2.5V / 3.3V 16-BIT HIGH BANDWIDTH BUS SWITCH | |
| Fabricantes | Integrated Device Technology | |
| Logotipo |  |
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IDTQS3VH16244
2.5V / 3.3V 16-BIT HIGH BANDWIDTH BUS SWITCH
QUICKSWITCH® PRODUCTS
2.5V / 3.3V 16-BIT HIGH
BANDWIDTH BUS SWITCH
INDUSTRIALTEMPERATURERANGE
IDTQS3VH16244
FEATURES:
• N channel FET switches with no parasitic diode to Vcc
− Isolation under power-off conditions
− No DC path to Vcc or GND
− 5V tolerant in OFF and ON state
• 5V tolerant I/Os
• Low RON - 4Ω typical
• Flat RON characteristics over operating range
• Rail-to-rail switching 0 - 5V
• Bidirectional dataflow with near-zero delay: no added ground
bounce
• Excellent RON matching between channels
• Vcc operation: 2.3V to 3.6V
• High bandwidth - up to 500 MHz
• LVTTL-compatible control Inputs
• Undershoot Clamp Diodes on all switch and control Inputs
• Low I/O capacitance, 4pF typical
• Available in SSOP and TSSOP packages
APPLICATIONS:
• Hot-swapping
• 10/100 Base-T, Ethernet LAN switch
• Low distortion analog switch
• Replaces mechanical relay
• ATM 25/155 switching
FUNCTIONAL BLOCK DIAGRAM
1G
DESCRIPTION:
The QS3VH16244 HotSwitch is a 16-bit high band bus switch. The
QS3VH16244 has very low ON resistance, resulting in under 250ps propa-
gation delay through the switch. The switches can be turned ON under the
control of the LVTTL-compatible xG signal for bidirectional data flow with no
added delay or ground bounce. In the OFF and ON states, the switches are
5V-tolerant. In the OFF state, the switches offer very high impedance at the
terminals.
The combination of near-zero propagation delay, high OFF impedance, and
over-voltage tolerance makes the QS3VH16244 ideal for high performance
communicationsapplications.
The QS3VH16244 is characterized for operation from -40°C to +85°C.
2G
1A1
1A2
1A3
1A4
1Y1
1Y2
1Y3
1Y4
2A1
2A2
2A3
2A4
2Y1
2Y2
2Y3
2Y4
3G 4G
3A1
3A2
3A3
3Y1
3Y2
3Y3
3A4
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
3Y4
INDUSTRIAL TEMPERATURE RANGE
c 2001 Integrated Device Technology, Inc.
4A1
4A2
4A3
4A4
1
4Y1
4Y2
4Y3
4Y4
MARCH 2002
DSC-5877/5
1 page  
IDTQS3VH16244
2.5V / 3.3V 16-BIT HIGH BANDWIDTH BUS SWITCH
INDUSTRIALTEMPERATURERANGE
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
TA = -40°C to +85°C
VCC = 2.5 ± 0.2V (1)
VCC = 3.3 ± 0.3V (1)
Symbol
tPLH
Parameter
Data Propagation Delay(2,3)
Min. (4)
Max.
0.2
Min. (4)
Max. Unit
0.2 ns
tPHL xAx to/from xYx
tPZH Switch Turn-On Delay
1.5 8 1.5 8 ns
tPZL xG to xAx/xYx
tPHZ Switch Turn-Off Delay
1.5 7.5 1.5 7.5 ns
tPLZ xG to xAx/xYx
fxG Operating Frequency - xG (2,5)
10 20 MHz
NOTES:
1. See Test Conditions under TEST CIRCUITS AND WAVEFORMS.
2. This parameter is guaranteed but not production tested.
3. The bus switch contributes no propagation delay other than the RC delay of the ON resistance of the switch and the load capacitance. The time constant for the switch alone
is of the order of 0.2ns at CL = 50pF. Since this time constant is much smaller than the rise and fall times of typical driving signals, it adds very little propagation delay to the
system. Propagation delay of the bus switch, when used in a system, is determined by the driving circuit on the driving side of the switch and its interaction with the load on
the driven side.
4. Minimums are guaranteed but not production tested.
5. Maximum toggle frequency for xG control input (pass voltage > VCC, VIN = 5V, RLOAD > 1MΩ, no CLOAD).
5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet IDTQS3VH16244.PDF ] | |
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