SY100EPT21L_05 Datasheet, PDF (1/6 Pages) Micrel Semiconductor – 3.3V DIFFERENTIAL LVPECL-to-LVTTL TRANSLATOR

Micrel, Inc.
3.3V DIFFERENTIAL
LVPECL-to-LVTTL TRANSLATOR
ECL Pro™
EC^SYL¹⁰P⁰r^Eo^P™^T21L
SY100EPT21L
FEATURES
■ Guaranteed over the industrial temperature range:
–40°C to +85°C
■ Pin-for-pin; plug-in replacement to MC100EPT21D/DT
■ 3.3V power supply
■ 1.9ns typical propagation delay
■ 275MHz f_MAX (Clock)
■ Differential LVPECL inputs
■ 24mA LVTTL output
■ Flow-through pinout
■ Q output will default LOW with inputs open
■ V_BB output
■ Available in 8-pin MSOP and SOIC packages
APPLICATIONS
■ ASIC/FPGA interface
■ Legacy interface
■ Precision differential-to-general purpose, single-
ended translation
ECL Pro™
DESCRIPTION
The SY100EPT21L is a single, differential LVPECL-
to-LVTTL translator using a single +3.3V power supply.
Because low voltage positive ECL (LVPECL) levels are
used, only +3.3V and ground are required. The small
outline 8-pin SOIC package and low-skew, single-gate
design make the EPT21L ideal for applications that
require the translation of a clock or data signal where
minimal space, low power, and low cost are critical.
V_BB allows a differential, single-ended, or AC-coupled
interface to the device. If used, the V_BB output should be
bypassed to V_CC with 0.01µF capacitor.
Under open input conditions, the /D will be biased at a
V_CC/2 voltage level and the D input will be pulled to
ground. This condition will force the Q output low to
provide added stability.
The 100EPT is compatible with positive ECL 100K
logic levels. For applications that require the smallest
footprint, consider the SY89321L in an ultra-small
(2mm × 2mm) 8-pin MLF™ package.
All support documentation can be found on Micrel’s web
site at: www.micrel.com.
CROSS REFERENCE TABLE
Micrel
SY100EPT21LZI
SY100EPT21LZITR
SY100EPT21LKI
SY100EPT21LKITR
ON Semiconductor
MC100EPT21D
MC100EPT21DR2
MC100EPT21DT
MC100EPT21DTR2
ECL Pro is a trademark of Micrel, Inc.
MicroLeadFrame and MLF are trademarks of Amkor Technology, Inc.
M9999-120505
[e-mail] or [phone]
1
Rev.: E Amendment: /0
Issue Date: December 2005