IDTQS34X2245_12 Datasheet, PDF (1/5 Pages) Integrated Device Technology – QUICKSWITCH PRODUCTS HIGH-SPEED CMOS QUICKSWITCH 32-BIT MULTIWIDTH BUS SWITCHES

IDTQS34X2245
HIGH-SPEED CMOS QUICKSWITCH 32-BIT MULTIWIDTH BUS SWITCHES
INDUSTRIAL TEMPERATURE RANGE
QUICKSWITCH^® PRODUCTS
HIGH-SPEED CMOS
QUICKSWITCH 32-BIT
MULTIWIDTH™ BUS SWITCHES
IDTQS34X2245
FEATURES:
• Enhanced N channel FET with no inherent diode to Vcc
• Bidirectional switches connect inputs to outputs
• Zero propagation delay, zero ground bounce
• Internal 25Ω resistors for low noise
• 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
FUNCTIONAL BLOCK DIAGRAM
DESCRIPTION:
The QS34X2245 is a member of the MultiWidth^TM 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 worlds first small outline 32-bit solution. The low ON-resistance of the
QS34X2245 allows inputs to be connected to outputs without adding
propagation delay and without generating additional ground bounce noise.
Internal 25Ω resistors reduce reflection noise in high-speed applications.
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 QS34X2245 is characterized for operation at -40°C to +85°C.
A0 A1 A2 A3 A4 A5 A6 A7
A16 A17 A18 A19 A20 A21 A22 A23
OE1
OE3
B0 B1 B2 B3 B4 B5 B6 B7
A8 A9 A10 A11 A12 A13 A14 A15
B16 B17 B18 B19 B20 B21 B22 B23
A24 A25 A26 A27 A28 A29 A30 A31
OE2
OE4
B8 B9 B10 B11 B12 B13 B14 B15
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
1
c
2012 Integrated Device Technology, Inc.
B24 B25 B26 B27 B28 B29 B30 B31
AUGUST 2012
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