IDTQS3VH245
2.5V / 3.3V 8-BIT HIGH BANDWIDTH BUS SWITCH
QUICKSWITCH® PRODUCTS
2.5V / 3.3V 8-BIT HIGH
BANDWIDTH BUS SWITCH
INDUSTRIALTEMPERATURERANGE
IDTQS3VH245
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 500MHz
• LVTTL-compatible control Inputs
• Undershoot Clamp Diodes on all switch and control Inputs
• Low I/O capacitance, 4pF typical
• Available in QSOP, SOIC, and TSSOP packages
APPLICATIONS:
• Hot-swapping
• 10/100 Base-T, Ethernet LAN switch
• Low distortion analog switch
• Replaces mechanical relay
• ATM 25/155 switching
• Bus switching and isolation
FUNCTIONAL BLOCK DIAGRAM
DESCRIPTION:
TheQS3VH245 HotSwitch8-bitbusswitchisahighbandwidthbusswitch.
The QS3VH245 has very low ON resistance, resulting in under 250ps
propagation delay through the switch. The switches can be turned ON under
thecontroloftheLVTTL-compatibleOutputEnable signalforbidirectionaldata
flow with no added delay or ground bounce. In the ON state, the switches can
passsignalsupto5V. IntheOFFstate,theswitchesofferveryhighimpedence
at the terminals.
The combination of near-zero propagation delay, high OFF impedance, and
over-voltage tolerance makes the QS3VH245 ideal forhigh performance
communicationsapplications.
The QS3VH245 is characterized for operation from -40°C to +85°C.
A0 A1 A2 A3 A4 A5 A6 A7
OE
B0 B1 B2 B3 B4 B5 B6 B7
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
c 2003 Integrated Device Technology, Inc.
1
MARCH 2003
DSC-5775/6
Free Datasheet http://www.Datasheet-PDF.com/
