QS3VH245PAG8 Integrated Device Technology (Idt), QS3VH245PAG8 Datasheet

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QS3VH245PAG8

Manufacturer Part Number
QS3VH245PAG8
Description
Bus Switch 1-Element 8-IN 20-Pin TSSOP T/R
Manufacturer
Integrated Device Technology (Idt)
Datasheet

Specifications of QS3VH245PAG8

Package
20TSSOP
Configuration
8 x 1:1
Logic Function
Bus Switch
Number Of Elements Per Chip
1
Number Of Outputs Per Chip
8
Typical Operating Supply Voltage
2.5|3.3 V
Maximum On Resistance
7(Typ) Ohm
Maximum Low Level Output Current
120 mA
Maximum Operating Supply Voltage
3.6 V
Minimum Operating Supply Voltage
2.3 V
Maximum Propagation Delay Time @ Maximum Cl
0.2@3.3V ns
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
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
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
2008 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:
switch. 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.
and over-voltage tolerance makes the QS3VH245 ideal forhigh perfor-
mance communications applications.
®
The QS3VH245 HotSwitch 8-bit bus switch is a high bandwidth bus
The combination of near-zero propagation delay, high OFF impedance,
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
INDUSTRIAL TEMPERATURE RANGE
5
5
A
B
6
6
A
B
SEPTEMBER 2008
7
7
IDTQS3VH245
DSC-5775/9

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QS3VH245PAG8 Summary of contents

Page 1

... PRODUCTS 2.5V / 3.3V 8-BIT HIGH BANDWIDTH BUS SWITCH DESCRIPTION: The QS3VH245 HotSwitch 8-bit bus switch is a high bandwidth bus CC switch. 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 ...

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 ( TERM OUT STG 0 NOTES Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of ...

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) ...

Page 4

... IDTQS3VH245 2.5V / 3.3V 8-BIT HIGH BANDWIDTH BUS SWITCH POWER SUPPLY CHARACTERISTICS Symbol Parameter I Quiescent Power Supply Current CCQ ∆I 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

... 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 50pF ...

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 ...

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 Datasheet Document History 09/01/08 Pg CORPORATE HEADQUARTERS 6024 Silver Creek Valley Road San Jose, CA 95138 Revise I Typ. and Max. Remove non green package version and updated the ordering CCQ information by removing the “IDT” notation. ...

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