MC10ELT28 Datasheet, PDF (1/3 Pages) ON Semiconductor – TTL to Differential PECL/Differential PECL to TTL Translator

MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Advance Information
TTL to Differential PECL/Differ-
ential PECL to TTL Translator
The MC10ELT/100ELT28 is a differential PECL to TTL translator and a
TTL to differential PECL translator in a single package. Because PECL
(Positive ECL) levels are used only +5V and ground are required. The
small outline 8-lead SOIC package and the dual translation design of the
ELT28 makes it ideal for applications which are sending and receiving
signals across a backplane. Because the mature MOSAIC 1.5 process is
used, low cost can be added to the list of features.
The ELT28 is available in both ECL standards: the 10ELT is compatible
with positive MECL 10H logic levels while the 100ELT is compatible with
positive ECL 100K logic levels.
• 3.5ns Typical PECL to TTL Propagation Delay
• 1.2ns Typical TTL to PECL Propagation Delay
• Differential PECL Inputs/Ouputs
• Small Outline SOIC Package
• PNP TTL Inputs for Minimal Loading
• 24mA TTL Outputs
• Flow Through Pinouts
LOGIC DIAGRAM AND PINOUT ASSIGNMENT
DECL 1
DECL 2
PECL
QECL 3
8 VCC
7 QTTL
TTL
6 DTTL
QECL 4
5 _GND
MC10ELT28
MC100ELT28
8
1
D SUFFIX
PLASTIC SOIC PACKAGE
CASE 751-05
PIN DESCRIPTION
PIN
QTTL
DTTL
QECL
DECL
VCC
GND
FUNCTION
TTL Output
TTL Inputs
Diff ECL Outputs
Diff ECL Inputs
+5.0V Supply
Ground
MAXIMUM RATINGS*
Symbol
Parameter
Value
Unit
VCC
DC Supply Voltage (Referenced to GND)
7.0
V
TA
Operating Temperature Range (In Free-Air)
–40 to 85
°C
TSTG
Storage Temperature Range
–55 to +150
°C
* Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the
Recommended Operating Conditions.
This document contains information on a new product. Specifications and information herein are subject to
change without notice.
1/95
© Motorola, Inc. 1996
3–1
REV 2