2

SY89321L

Micrel, Inc.

M9999-060208

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

PIN DESCRIPTION

Pin Number

Pin Name

Type

Pin Function

1,6

NC

No connection.

2

IN

100K LVPECL/

Differential PECL/CML/LVDS Input: Internal 75k

Ω pull-down resistor. If left

CML/LVDS

open, piN defaults LOW. Q output will be LOW. See “Input Interface

Input

Applications” section for CML, LVDS and single-ended inputs.

3

/IN

100K LVPECL/

Differential PECL/CML/LVDS Input: Internal 75k

Ω pull-up and pull-down

CML/LVDS

Input

be left open. See “Input Interface Applications” section for CML, LVDS and

single-ended inputs.

4

VBB

Reference

Voltage Output

ended inputs or AC-coupling to the IN, /IN inputs. Limit sink / source

≤ 0.5mA.

5

GND,

Ground

GND and Exposed pad must be tied to ground plane.

Exposed Pad

7

Q

LVTTL Output

Single-ended LVTTL Output: Defaults to LOW if IN inputs left open.

8

VCC

Positive

Positive Power Supply: Bypass with 0.1

µF//0.01µF low ESR capacitors.

Power Supply

PACKAGE/ORDERING INFORMATION

NC

IN

/IN

LVTTL

VBB

VCC

Q

NC

LVPECL/CML/LVDS

GND

1

2

3

4

8

7

6

5

Ultra-Small Outline (2mm x 2mm)

Ordering Information

Package

Operating

Package

Lead

Part Number

Type

Range

Marking

Finish

SY89321LMITR

MLF-8

Industrial

321

Sn-Pb

MLF-8

Industrial

321 with

Pb-Free

Pb-Free bar-line indicator

NiPdAu

Note:

1. Pb-Free package is recommended for new designs.