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PDF IDTQS3VH16212 Data sheet ( Hoja de datos )
| Número de pieza | IDTQS3VH16212 | |
| Descripción | QUICKSWITCH PRODUCTS 2.5V / 3.3V 24-BIT BUS EXCHANGE HIGH BANDWIDTH BUS SWITCH | |
| Fabricantes | Integrated Device | |
| Logotipo |  |
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IDTQS3VH16212
2.5V / 3.3V 24-BIT BUS EXCHANGE HIGH BANDWIDTH BUS SWITCH
INDUSTRIALTEMPERATURERANGE
QUICKSWITCH® PRODUCTS
2.5V / 3.3V 24-BIT BUS
EXCHANGE HIGH BANDWIDTH
BUS SWITCH
IDTQS3VH16212
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
DESCRIPTION:
The QS3VH16212 Bus Exchange HotSwitch with 24-bits is a high
bandwidth bus switch. The QS3VH16212 has very low ON resistance,
resulting in under 250ps propagation delay through the switch. The device
operates as a 24-bit bus switch or a 12-bit bus exchanger, which provides
data exchanging between the four signal ports through the data-select (S0
- S2) terminals. In the OFF and ON states, the switches are 5V-tolerant. In
the OFF state, the switches offer very high impedence at the terminals.
The combination of near-zero propagation delay, high OFF impedance,
and over-voltage tolerance makes the QS3VH16212 ideal for high perfor-
mance communications applications.
The QS3VH16212 is characterized for operation from -40°C to +85°C.
APPLICATIONS:
• Hot-swapping
• 10/100 Base-T, Ethernet LAN switch
• Low distortion analog switch
• Replaces mechanical relay
• ATM 25/155 switching
FUNCTIONAL BLOCK DIAGRAM
1A1
1 of 12 Channels
1B1
1A2
Flow Control
S0
S1
S2
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
c 2002 Integrated Device Technology, Inc.
1
1B2
MARCH 2002
DSC-5884/5
1 page  
IDTQS3VH16212
2.5V / 3.3V 24-BIT BUS EXCHANGE 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 Parameter
Min. (4)
Max.
Min. (4)
Max. Unit
tPLH DataPropagationDelay(2,3)
⎯ 0.2 ⎯ 0.2 ns
tPHL xAx to xBx or xBx to xAx
tPZH Switch Turn-On Delay
1.5 11.5
1.5
11 ns
tPZL Sx to xAx, xBx
tPHZ Switch Turn-Off Delay
1.5 11
1.5 10.5 ns
tPLZ Sx to xAx, xBx
tPSX PropagationDelay
1.5 11
1.5
9 ns
Sx to xAx, xBx
fSx Operating Frequency - Enable(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 Sx control input (pass voltage > VCC, VIN = 5V, RLOAD > 1MΩ, no CLOAD).
5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet IDTQS3VH16212.PDF ] | |
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