IDTQS3388Q8 IDT, Integrated Device Technology Inc, IDTQS3388Q8 Datasheet

IDTQS3388Q8

Manufacturer Part Number
IDTQS3388Q8
Description
Manufacturer
IDT, Integrated Device Technology Inc
Datasheet

Specifications of IDTQS3388Q8

Lead Free Status / RoHS Status
Not Compliant
FUNCTIONAL BLOCK DIAGRAM
FEATURES:
• Enhanced N channel FET with no inherent diode to Vcc
• 5Ω Ω Ω Ω Ω bidirectional switches connect inputs to outputs
• Active termination drives bus pins to rails when switches are
• Zero propagation delay, zero added ground bounce
• Undershoot clamp diodes on all switch and control inputs
• Bus exchange allows nibble swap
• TTL-compatible input and output levels
• Bus-hold eliminates floating bus lines and reduces static
• Available in QSOP package
APPLICATIONS:
• Resource sharing
• Crossbar switching
• Last value latch (graphics and DSP)
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
IDTQS3388
HIGH-SPEED CMOS BUS EXCHANGE SWITCH WITH ACTIVE TERMINATION
c
off
power consumption
2000 Integrated Device Technology, Inc.
B X
B E
A
B
A
B
0
0
4
4
T
T
T
T
QUICKSWITCH
HIGH-SPEED CMOS BUS EXCHANGE
SWITCH WITH ACTIVE TERMINATION
(BUS HOLD)
T
T
T
T
®
1
PRODUCTS
DESCRIPTION:
switches with active terminators on the bus switch I/O pins. The low ON
resistance (5Ω) of the 3388 allows inputs to be connected to outputs without
adding propagation delay and without generating additional ground bounce
noise. When the switches are turned off, a low drive active terminator circuit
drives the disconnected pins to V
This prevents undriven buses from floating. The Bus Enable (BE) signal
turns the switches on. The Bus Exchange (BX) signal provides nibble swap
of the AB and CD pairs of signals. This exchange configuration allows byte
swapping of buses in systems. It can also be used as a five-wide 2-to-1
multiplexer and to create low delay barrel shifters, etc.
C
D
C
D
The QS3388 provides ten high-speed CMOS TTL-compatible bus
The QS3388 is characterized for operation at -40°C to +85°C.
0
0
4
4
T
=
CC
INDUSTRIAL TEMPERATURE RANGE
or ground, away from the TTL threshold.
R
IDTQS3388
APRIL 2000
DSC-5765/2

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IDTQS3388Q8 Summary of contents

Page 1

IDTQS3388 HIGH-SPEED CMOS BUS EXCHANGE SWITCH WITH ACTIVE TERMINATION FEATURES: • Enhanced N channel FET with no inherent diode to Vcc • 5Ω Ω Ω Ω Ω bidirectional switches connect inputs to outputs • Active termination drives bus pins to ...

Page 2

IDTQS3388 HIGH-SPEED CMOS BUS EXCHANGE SWITCH WITH ACTIVE TERMINATION PIN CONFIGURATION ...

Page 3

IDTQS3388 HIGH-SPEED CMOS BUS EXCHANGE SWITCH WITH ACTIVE TERMINATION DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE Following Conditions Apply Unless Otherwise Specified: Industrial –40°C to +85° ± Symbol Parameter V Input HIGH Voltage ...

Page 4

IDTQS3388 HIGH-SPEED CMOS BUS EXCHANGE SWITCH WITH ACTIVE TERMINATION POWER SUPPLY CHARACTERISTICS Symbol Parameter I Quiescent Power Supply Current CCQ ΔI Power Supply Current per Input HIGH CC I Dynamic Power Supply Current per MHz CCD NOTES: 1. For conditions ...

Page 5

IDTQS3388 HIGH-SPEED CMOS BUS EXCHANGE SWITCH WITH ACTIVE TERMINATION ACTIVE TERMINATOR OR ‘BUS-HOLD’ CIRCUIT The Active Terminator circuit, also known as the Bus-hold circuit, is configured as a “weak latch” with positive feedback. When connected to a TTL or CMOS ...

Page 6

IDTQS3388 HIGH-SPEED CMOS BUS EXCHANGE SWITCH WITH ACTIVE TERMINATION ORDERING INFORMATION IDTQS XX XXXXX Package Device Type CORPORATE HEADQUARTERS 6024 Silver Creek Valley Road San Jose, CA 95138 X Process Blank Q 3388 for SALES: 800-345-7015 or 408-284-8200 fax: 408-284-2775 ...

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