SY89321L
SY89321L is 3.3V DIFFERENTIAL LVPECL-to-LVTTL TRANSLATOR manufactured by Micrel Semiconductor.
FEATURES s 3.3V power supply s 1.9ns typical propagation delay s 275MHz f MAX s Differential LVPECL/CML/LVDS inputs s 24m A LVTTL outputs s Flow-through pinouts s Internal input resistors: pulldown on IN, pulldown and pullup on /IN s Q output will default LOW with inputs open s VBB output s Available in ultra-small 8-pin MLF® (2mm x 2mm) package
BLOCK DIAGRAM
LVPECL/ IN CML/LVDS /IN
Q LVTTL
Precision Edge®
DESCRIPTION
The SY89321L is a differential LVPECL/CML/LVDSto-LVTTL translator requiring only a single +3.3V power. The SY89321L is functionally equivalent to the SY100EPT21L, but in an ultra-small 8-pin MLF® package that features a 70% smaller footprint. This ultra-small package and low skew single gate design make the SY89321L ideal for applications that require the translation of a clock or data signal where minimal space, low power and low cost are critical.
VBB allows a differential, single-ended, or AC-coupled interface to the device. If used, the VBB output should be bypassed to VCC with 0.01µF capacitor.
Under open input conditions, the /IN will be biased at a VCC/2 voltage level and the IN input will be pulled to ground. This condition will force the Q output low to provide added stability.
The SY89321L is patible with positive ECL 100k logic levels.
Precision Edge is a registered trademark of Micrel, Inc. Micro Lead Frame and MLF are registered trademarks of Amkor Technology, Inc.
M9999-060208 hbwhelp@micrel. or (408) 955-1690
Rev.: D Amendment: /0 Issue Date: June 2008
Micrel, Inc.
Precision Edge® SY89321L
PACKAGE/ORDERING INFORMATION
NC 1 IN 2
8 VCC LVTTL
7Q
/IN 3
6 NC
LVPECL/CML/LVDS
VBB 4
5 GND
8-Pin MLF® Ultra-Small Outline (2mm x 2mm)
Ordering Information
Part Number SY89321LMITR SY89321LMGTR(1)
Package Type
MLF-8
MLF-8
Operating Range
Industrial
Industrial
Package Marking
321 with Pb-Free bar-line indicator
Lead Finish
Sn-Pb
Pb-Free Ni Pd...