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SY10H646L

SY100H646L

Micrel, Inc.

M9999-032906

hbwhelp@micrel.com or (408) 955-1690

Pin

Function

OGND

TTL Output Ground (0V)

OVT

IGND

Internal TTL GND (0V)

IVT

ECL Ground (+3.0V)

ECLK, ECLK

Differential Signal Input (PECL)

Signal Outputs (TTL)

EN

Three-State Enable Input (TTL)

TCLK

Signal Input (TTL)

DESCRIPTION

FEATURES

s 3.3V power supply

s PECL/TTL-to-TTL version of popular ECLinPS

E111AE/LE

s Guaranteed low skew specification

s Three-state enable

s Differential internal design

s Extra TTL and ECL power/ground pins

s Choice of ECL compatibility: 10K or 100K

s Matched high and low output impedance

s Available in 28-pin PLCC package

The SY10/100H646L are single supply, low skew

translating 1:8 clock drivers. Devices in the Micrel H600

translator series utilize the 28-lead PLCC for optimal

power pinning, signal flow-through and electrical

performance. The single supply H646L is similar to the

HA643 which is a dual supply 1:8 version of the same

function.

These devices feature a 24mA TTL output stage, with

AC performance specified into a 20pF load capacitance.

The 10H version is compatible with 10K ECL logic

levels. The 100H version is compatible with 100K levels.

Rev.: F

Amendment: /0

Issue Date:

March 2006

BLOCK DIAGRAM

PIN NAMES

SY10H646L

SY100H646L

3.3V SINGLE SUPPLY

OCTAL PECL/TTL-TO-TTL

TCLK

ECLK

ECLK

EN

Precision Edge is a registered trademark of Micrel, Inc.