IDTQS34XVH2245 Datasheet, PDF (1/8 Pages) Integrated Device Technology – QUICKSWITCH® PRODUCTS 2.5V / 3.3V 32-BIT HIGH BANDWIDTH BUS SWITCH

IDTQS34XVH2245
2.5V / 3.3V 32-BIT HIGH BANDWIDTH BUS SWITCH
QUICKSWITCH^® PRODUCTS
2.5V / 3.3V 32-BIT HIGH
BANDWIDTH BUS SWITCH
INDUSTRIAL TEMPERATURE RANGE
IDTQS34XVH2245
FEATURES:
• N channel FET switches with no parasitic diode to VCC
– Isolation under power-off conditions
– No DC path to VCC or GND
– 5V tolerant in OFF and ON state
• 5V tolerant I/Os
• Flat RON characteristics over operating range
• Rail-to-rail switching 0 - 5V
• Bidirectional dataflow with near-zero delay: no added ground
bounce
• Excellent RON matching between channels
• VCC operation: 2.3V to 3.6V
• High bandwidth
• LVTTL-compatible control Inputs
• Undershoot Clamp Diodes on all switch and control Inputs
• Low I/O capacitance, 4pF typical
• 25Ω resistors for low noise and line matching
• Available in 80-pin QVSOP package
APPLICATIONS:
• Hot-swapping
• Low distortion analog switch
• Replaces mechanical relay
• ATM 25/155 switching
FUNCTIONAL BLOCK DIAGRAM
A0 A1 A2 A3 A4 A5 A6 A7
DESCRIPTION:
The QS34XVH2245 is a high bandwidth, 32-bit bus switch. The
QS34XVH2245 with 25Ω resistance and 1.35ns propagation delay is ideal
for line matching and low noise environments. The switches can be turned
ON under the control of individual LVTTL-compatible Output Enable (OEx)
signals 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.
The combination of small propagation delay, high OFF impedance, and
over-voltage tolerance makes the QS34XVH2245 ideal for high perfor-
mance communications applications.
The QS34XVH2245 is characterized for operation from -40°C to +85°C.
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 2003 Integrated Device Technology, Inc.
B24 B25 B26 B27 B28 B29 B30 B31
MARCH 2003
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