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IDTQS34X245
HIGH-SPEED CMOS QUICKSWITCH 32-BIT MULTIWIDTH BUS SWITCHES INDUSTRIAL TEMPERATURE RANGE
AUGUST 2012
2012 Integrated Device Technology, Inc. DSC-5481/5c
INDUSTRIAL TEMPERATURE RANGE
FUNCTIONAL BLOCK DIAGRAM
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
FEATURES:
• Enhanced N channel FET with no inherent diode to Vcc
• Bidirectional switches connect inputs to outputs
• Zero propagation delay, zero ground bounce
• QS34X245 is 32-bit version of QS3245
• Flow-through pinout for easy layout
• Undershoot clamp diodes on all switch and control inputs
• TTL-compatible control inputs
• Available in 80-pin MilliPaQ™ package
APPLICATIONS:
• Hot-swapping, hot-docking
• Voltage translation (5V to 3.3V)
• Bus switching and isolation
• Power conservation
• Logic replacement (data processing)
• Capacitance isolation
• Clock gating
IDTQS34X245
QUICKSWITCH® PRODUCTS
HIGH-SPEED CMOS
QUICKSWITCH 32-BIT
MULTIWIDTH™ BUS SWITCHES
DESCRIPTION:
The QS34X245 is a member of the MultiWidthTM family of QuickSwitch
devices and provides a set of 32 high-speed CMOS compatible bus switches
in a flow-through pinout. This device is available in the MilliPaQ package,
the world's first small outline 32-bit solution. The low ON-resistance of the
QS34X245 allows inputs to be connected to outputs without adding propa-
gation delay and without generating additional ground bounce noise. When
Output Enable (OEn) is low, the switches are turned on, connecting bus A
to bus B. When OEn is high, the switches are turned off. This device is ideally
suited for 32/64 bit applications where board space is at a premium.
QuickSwitch devices provide speeds an order of magnitude faster than
conventional logic devices.
The QS34X245 is characterized for operation at -40°C to +85°C.
B0
OE1
A0
B1
A1
B2
A2
B
3
A3
B4
A4
B5
A5
B6
A6
B7
A7
B8
OE2
A8
B9
A9
B10
A10
B11
A11
B12
A12
B13
A13
B14
A
14
B15
A15
B16
OE3
A16
B17
A17
B18
A18
B19
A19
B20
A20
B21
A21
B22
A22
B23
A
23
B24
OE4
A
24
B25
A
25
B26
A
26
B27
A
27
B28
A
28
B29
A
29
B30
A
30
B31
A
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