Micrel, Inc.
2 X 2 PROTECTION
CROSSPOINT SWITCH
SuperLite™
SY55854U
SuperLite™
SY55854U
FEATURES
s
Guaranteed f
MAX
>2.5GHz over temperature
s
2.3V to 5.7V power supply
s
Non-blocking “switch architecture”
s
Guaranteed <15ps channel-to-channel skew
s
Guaranteed <480ps propagation delay over
temperature
s
Configurable as 2:1 mux, 1:2 fan-out buffer, dual
buffer, or 2 x 2 switch
s
Accepts CML, PECL, LVPECL inputs
s
Fully differential inputs/outputs
s
Source terminated CML outputs for fast edge rates
s
Wide operating temperature range: –40
°
C to +85
°
C
s
Available in a tiny 16-pin EPAD-QSOP package
SuperLite™
DESCRIPTION
The SY55854U is a fully differential, CML, 2 x 2-
crosspoint switch. The non-blocking design allows any
input to be connected to any output. Varying the state of
the select inputs allows SY55854U to be used in backup,
fault tolerant, protection, and backplane distribution
applications.
SY55854U inputs can be terminated with a single
resistor between the true and the complement pins of a
given input.
The SY55854U is a member of Micrel’s new
SuperLite™ family of high-speed logic devices. This family
features very small packaging, high signal integrity, and
flexible supply voltage operation.
FUNCTIONAL BLOCK DIAGRAM
S0
S1
D0
D1
0S
Q0
1
APPLICATIONS
s
High-speed logic
s
Data communications systems
s
Wireless communications systems
s
Telecom systems
s
Backplane redundancy
0S
Q1
1
SuperLite is a trademark of Micrel, Inc.
M9999-041206
hbwhelp@micrel.com or (408) 955-1690
Rev.: D
Amendment: /0
1
Issue Date: April 2006
MICREL [ MICREL SEMICONDUCTOR ]
