IDTQS3VH16861 Datasheet, PDF (1/8 Pages) Integrated Device Technology – 3.3V 20-BIT FLOW-THROUGH PIN OUT, HIGH BANDWIDTH BUS SWITCH

IDTQS3VH16861
2.5V / 3.3V 20-BIT FLOW-THROUGH PIN OUT, HIGH BANDWIDTH BUS SWITCH
INDUSTRIAL TEMPERATURE RANGE
QUICKSWITCH^® PRODUCTS 2.5V/
IDTQS3VH16861
3.3V 20-BIT FLOW-THROUGH PIN OUT,
HIGH BANDWIDTH BUS SWITCH
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
• Low RON - 4Ω typical
• 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 - up to 500 MHz
• LVTTL-compatible control Inputs
• Undershoot Clamp Diodes on all switch and control Inputs
• Low I/O capacitance, 4pF typical
• Available in SSOP and TSSOP packages
APPLICATIONS:
• Hot-swapping
• 10/100 Base-T, Ethernet LAN switch
• Low distortion analog switch
• Replaces mechanical relay
• ATM 25/155 switching
FUNCTIONAL BLOCK DIAGRAM
DESCRIPTION:
The QS3VH16861 HotSwitch with 20-bit flow-though pin out is a high
bandwidth bus switch. The QS3VH16861 has very low ON resistance,
resulting in under 250ps propagation delay through the switch. The switches
are controlled by active low enable (BEx) controls. 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 near-zero propagation delay, high OFF impedance,
and over-voltage tolerance makes the QS3VH16861 ideal for high perfor-
mance communications applications.
The QS3VH16861 is characterized for operation from -40°C to +85°C.
A0
B0
A10
B10
A9
B9
A19
BE1
BE2
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
1
c 2001 Integrated Device Technology, Inc.
B19
NOVEMBER 2001
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