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Número de pieza | IDTQS32XVH245 | |
Descripción | 2.5V / 3.3V 16-BIT HIGH BANDWIDTH BUS SWITCH | |
Fabricantes | Integrated Device Technology | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de IDTQS32XVH245 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
No Preview Available ! IDTQS32XVH245
2.5V / 3.3V 16-BIT HIGH BANDWIDTH BUS SWITCH
QUICKSWITCH® PRODUCTS
2.5V / 3.3V 16-BIT HIGH
BANDWIDTH BUS SWITCH
INDUSTRIALTEMPERATURERANGE
IDTQS32XVH245
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
ww• wR.aDial-ttao-Srhaeilestw4Uit.cchoimng 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 500MHz
• LVTTL-compatible control Inputs
• Undershoot Clamp Diodes on all switch and control Inputs
• Low I/O capacitance, 4pF typical
• Available in 40-pin QVSOP package
DESCRIPTION:
The QS32XVH245 HotSwitch is a high bandwidth, 16-bit bus switch. The
QS32XVH245 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 Output Enable (OEx) signal for bidirectional
dataflowwithnoaddeddelayorgroundbounce. IntheONstate,theswitches
can pass signals up to 5V. 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 QS32XVH245 ideal for high performance
communicationsapplications.
The QS32XVH245 is characterized for operation from -40°C to +85°C.5°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
A0 A1 A2 A3 A4 A5 A6 A7
OE1
B0 B1 B2 B3 B4 B5 B6 B7
A8 A9 A10 A11 A12 A13 A14 A15
OE2
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
c 2003 Integrated Device Technology, Inc.
B8 B9 B10 B11 B12 B13 B14 B15
1
MARCH 2003
DSC-5594/10
1 page IDTQS32XVH245
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
tPHL
tPZL
tPZH
tPLZ
tPHZ
Parameter
Data Propagation Delay(2,3)
Ax to/from Bx
Switch Turn-On Delay
OEx to Ax/Bx
Switch Turn-Off Delay
OEx to Ax/Bx
Min. (4)
⎯
1.5
1.5
Max. Min. (4)
0.2 ⎯
8 1.5
7 1.5
Max.
0.2
7
6.5
fOEx Operating Frequency - Enable(2,5)
⎯
10 ⎯
20
Unit
ns
ns
ns
MHz
NOTES:
1. See Test Conditions under TEST CIRCUITS AND WAVEFORMS.
ww23..wTT.Dhhieas btpauasrSahsmweeiettcehtr4icUso.ngcturoiabrmuatnetseendo
but not production
propagation delay
tested.
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 OEx control input (pass voltage > VCC, VIN = 5V, RLOAD ≥ 1MΩ, no CLOAD).
5
5 Page |
Páginas | Total 8 Páginas | |
PDF Descargar | [ Datasheet IDTQS32XVH245.PDF ] |
Número de pieza | Descripción | Fabricantes |
IDTQS32XVH245 | 2.5V / 3.3V 16-BIT HIGH BANDWIDTH BUS SWITCH | Integrated Device Technology |
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