SY89824LHH Micrel Inc, SY89824LHH Datasheet

SY89824LHH

Manufacturer Part Number

SY89824LHH

Description

Manufacturer

Micrel Inc

Type

Clock Driverr

Datasheet

1.SY89824LHH.pdf (7 pages)

Specifications of SY89824LHH

Number Of Clock Inputs

Mode Of Operation

Differential

Output Logic Level

HSTL

Operating Supply Voltage (min)

Operating Supply Voltage (typ)

3.3V

Operating Supply Voltage (max)

3.6V

Package Type

TQFP EP

Operating Temp Range

0C to 85C

Operating Temperature Classification

Commercial

Signal Type

HSTL/LVPECL

Mounting

Surface Mount

Pin Count

Lead Free Status / RoHS Status

Compliant

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Micrel, Inc.

Precision Edge is a registered trademark of Micrel, Inc.

M9999-020207

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

FEATURES

3.3V core supply, 1.8V output supply for reduced

power

LVPECL and HSTL inputs

22 differential HSTL (low-voltage swing) output pairs

HSTL outputs drive 50 to ground with no offset

voltage

Low part-to-part skew (200ps max.)

Low pin-to-pin skew (50ps max.)

Available in a 64-Pin EPAD-TQFP

APPLICATIONS

High-performance PCs

Workstations

Parallel processor-based systems

Other high-performance computing

Communications

3.3V 1:22 HIGH-PERFORMANCE,

LOW VOLTAGE BUS CLOCK DRIVER

with 22 differential HSTL (High Speed Transceiver Logic)

output pairs. The part is designed for use in low voltage

(3.3V/1.8V) applications which require a large number of

outputs to drive precisely aligned, ultra low skew signals to

their destination. The input is multiplexed from either HSTL

or LVPECL (Low Voltage Positive Emitter Coupled Logic)

by the CLK_SEL pin. The Output Enable (OE) is

synchronous so that the outputs will only be enabled/

disabled when they are already in the LOW state. This

avoids any chance of generating a runt clock pulse when

the device is enabled/disabled as can happen with an

asynchronous control.

and low part-to-part skew (200ps max.)—performance

previously unachievable in a standard product having such

a high number of outputs. The SY89824L is available in a

single space saving package, enabling a lower overall cost

solution.

/LVPECL_CLK

LVPECL_CLK

LOGIC SYMBOL

/HSTL_CLK

DESCRIPTION

The SY89824L is a High Performance Bus Clock Driver

The SY89824L features low pin-to-pin skew (50ps max.)

HSTL_CLK

CLK_SEL

LEN

Precision Edge

Rev.: G

Issue Date: February 2007

Precision Edge

SY89824L

Amendment: /0

SY89824L

Q0 - Q21

/Q0 - /Q21

Related parts for SY89824LHH

SY89824LHH Summary of contents

Page 1

Micrel, Inc. FEATURES 3.3V core supply, 1.8V output supply for reduced power LVPECL and HSTL inputs 22 differential HSTL (low-voltage swing) output pairs HSTL outputs drive 50 to ground with no offset voltage Low part-to-part skew (200ps max.) Low pin-to-pin ...

Page 2

Micrel, Inc. PACKAGE/ORDERING INFORMATION CCO CCI 4 HSTL_CLK 5 HSTL_CLK 6 CLK_SEL 7 LVPECL_CLK 8 LVPECL_CLK 9 ...

Page 3

Micrel, Inc. TRUTH TABLE OE (1) CLK_SEL LOW 0 1 LOW 1 0 HSTL_CLK 1 1 LVPECL_CLK NOTE: 1. The OE (output enable) signal is synchronized with the low level of the HSTL_CLK and LVPECL_CLK ...

Page 4

Micrel, Inc. DC ELECTRICAL CHARACTERISTICS Power Supply Symbol Parameter V V Core CCI Output CCO Core CCI CC HSTL Symbol Parameter (1) V Output HIGH Voltage OH (1) V Output LOW Voltage OL V ...

Page 5

Micrel, Inc. AC ELECTRICAL CHARACTERISTICS Symbol Parameter (2) t Propagation Delay PD (3) t Within-Device Skew SKEW (4) t Part-to-Part Skew SKPP (5) V Minimum Input Swing PP LVPECL_CLK (6) V Common Mode Range CMR LVPECL_CLK ( Set-Up ...

Page 6

Micrel, Inc. WAVEFORMS M9999-020207 hbwhelp@micrel.com or (408) 955-1690 25¡C CCI 1.6V CCO TIME (2ns/div) Figure 1. 100MHz Output Waveform 25¡C CCI 1.6V CCO TIME ...

Page 7

Micrel, Inc. 64-PIN EPAD-TQFP (DIE UP) (H64-1) +0.03 –0.03 +0.012 –0.012 Heat Dissipation Package Notes: Note 1. Package meets Level 2 qualification. Note 2. All parts are 100% baked and dry-packaged before shipment. Note 3. Exposed pads must be soldered ...

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