MOTOROLA

SEMICONDUCTOR TECHNICAL DATA

3–1

REV 2

1/95

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.

1

2

3

4

5

6

7

8

QTTL

GND

VCC

LOGIC DIAGRAM AND PINOUT ASSIGNMENT

DECL

DTTL

QECL

QECL

DECL

PECL

TTL

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.

MC10ELT28

MC100ELT28

PIN

FUNCTION

QTTL

TTL Output

DTTL

TTL Inputs

QECL

Diff ECL Outputs

DECL

Diff ECL Inputs

VCC

+5.0V Supply

GND

Ground

PIN DESCRIPTION

1

8

D SUFFIX

PLASTIC SOIC PACKAGE

CASE 751-05