idtqs3vh245 Integrated Device Technology, idtqs3vh245 Datasheet

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idtqs3vh245

Manufacturer Part Number
idtqs3vh245
Description
Quickswitch Products 2.5v / 3.3v 8-bit High Bandwidth Bus Switch
Manufacturer
Integrated Device Technology
Datasheet

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FEATURES:
• N channel FET switches with no parasitic diode to V
• 5V tolerant I/Os
• Low R
• Flat R
• Rail-to-rail switching 0 - 5V
• Bidirectional dataflow with near-zero delay: no added ground
• Excellent R
• V
• 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
INDUSTRIAL TEMPERATURE RANGE
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
IDTQS3VH245
2.5V / 3.3V 8-BIT HIGH BANDWIDTH BUS SWITCH
c
– Isolation under power-off conditions
– No DC path to V
– 5V tolerant in OFF and ON state
bounce
CC
2003 Integrated Device Technology, Inc.
operation: 2.3V to 3.6V
ON
ON
characteristics over operating range
- 4Ω Ω Ω Ω Ω typical
ON
matching between channels
CC
or GND
O E
QUICKSWITCH
2.5V / 3.3V 8-BIT HIGH
BANDWIDTH BUS SWITCH
CC
A
B
0
0
A
B
1
1
1
DESCRIPTION:
The QS3VH245 has very low ON resistance, resulting in under 250ps
propagation delay through the switch. The switches can be turned ON under
the control of the LVTTL-compatible Output Enable signal for bidirectional data
flow with no added delay or ground bounce. In the ON state, the switches can
pass signals up to 5V. In the OFF state, the switches offer very high impedence
at the terminals.
over-voltage tolerance makes the QS3VH245 ideal forhigh performance
communications applications.
®
The QS3VH245 HotSwitch 8-bit bus switch is a high bandwidth bus switch.
The combination of near-zero propagation delay, high OFF impedance, and
The QS3VH245 is characterized for operation from -40°C to +85°C.
A
B
PRODUCTS
2
2
A
B
3
3
A
B
4
4
A
B
5
5
INDUSTRIAL TEMPERATURE RANGE
A
B
6
6
A
B
7
7
IDTQS3VH245
MARCH 2003
DSC-5775/8

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idtqs3vh245 Summary of contents

Page 1

... QS3VH245 ideal forhigh performance communications applications. The QS3VH245 is characterized for operation from -40°C to +85° INDUSTRIAL TEMPERATURE RANGE IDTQS3VH245 MARCH 2003 DSC-5775/8 ...

Page 2

... IDTQS3VH245 2.5V / 3.3V 8-BIT HIGH BANDWIDTH BUS SWITCH PIN CONFIGURATION GND QSOP/ SOIC/ TSSOP TOP VIEW ABSOLUTE MAXIMUM RATINGS Symbol (2) V TERM (3) V TERM (3) CC TERM V AC ...

Page 3

... IDTQS3VH245 2.5V / 3.3V 8-BIT HIGH BANDWIDTH BUS SWITCH DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE Following Conditions Apply Unless Otherwise Specified: Industrial –40°C to +85° 3.3V ±0. Symbol Parameter V Input HIGH Voltage IH V Input LOW Voltage IL I Input Leakage Current (Control Inputs Off-State Current (Hi-Z) ...

Page 4

... IDTQS3VH245 2.5V / 3.3V 8-BIT HIGH BANDWIDTH BUS SWITCH POWER SUPPLY CHARACTERISTICS Symbol Parameter I Quiescent Power Supply Current CCQ ΔI Power Supply Current (2,3) per Input HIGH CC I Dynamic Power Supply Current (4) CCD NOTES: 1. For conditions shown as Min. or Max., use the appropriate values specified under DC Electrical Characteristics. ...

Page 5

... IDTQS3VH245 2.5V / 3.3V 8-BIT HIGH BANDWIDTH BUS SWITCH SWITCHING CHARACTERISTICS OVER OPERATING RANGE T = -40°C to +85°C A Symbol Parameter (2,3) t Data Propagation Delay PLH t Ax to/from Bx PHL t Switch Turn-On Delay PZL OE to Ax/Bx t PZH t Switch Turn-Off Delay PLZ OE to Ax/Bx t PHZ f Operating Frequency - Enable OE NOTES: 1. See Test Conditions under TEST CIRCUITS AND WAVEFORMS. ...

Page 6

... IDTQS3VH245 2.5V / 3.3V 8-BIT HIGH BANDWIDTH BUS SWITCH SOME APPLICATIONS FOR HOTSWITCH PRODUCTS 0 to +5V Vcc = 3.3V OE LOGIC Z = 100 Ω SIDE 4.5V PP PLUGGABLE CARD/ LIVE SYSTEM CARD I/O CARD I/O NFET +6.5V CHARGE PUMP DRIVER SINGLE HOT SWITCH Rail-to-Rail Switching PHY 3VH 4.5V PP SWITCH 10Mbps to 100Mbps >100m TWISTED PAIR ...

Page 7

... IDTQS3VH245 2.5V / 3.3V 8-BIT HIGH BANDWIDTH BUS SWITCH TEST CIRCUITS AND WAVEFORMS TEST CONDITIONS Symbol V (1) = 3.3V ± 0. LOAD 1 300 LZ V 300 OUT (1, 2) Pulse D.U.T. Generator R T Test Circuits for All Outputs DEFINITIONS Load capacitance: includes jig and probe capacitance. ...

Page 8

... IDTQS3VH245 2.5V / 3.3V 8-BIT HIGH BANDWIDTH BUS SWITCH ORDERING INFORMATION IDTQS XXXXX XX Package Device Type CORPORATE HEADQUARTERS 6024 Silver Creek Valley Road San Jose, CA 95138 INDUSTRIAL TEMPERATURE RANGE Small Outline IC SO SOIC - Green SOG Quarter Size Outline Package Q QSOP - Green QG Thin Shrink Small Outline Package ...

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